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Gland Carcinomas (gland + carcinoma)

Distribution by Scientific Domains

Medical Sciences	100%

Distribution within Medical Sciences

Oncology & Radiotherapy	21%
Dermatology	14%
Otolaryngology (Ear, Nose & Throat)	7%

Kinds of Gland Carcinomas

salivary gland carcinoma

sweat gland carcinoma

Selected Abstracts

Clinical Stage, Therapy, and Prognosis in Canine Anal Sac Gland Carcinoma

JOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 2 2007
Gerry A. Polton MA, MRCVS, MSc (Clin Onc), VetMB
Background:Reports of canine anal sac gland carcinoma (ASGC) describe varied clinical presentations and management and differing responses to therapy. A unifying approach to clinical stage determination and management of this disease has yet to be presented. Hypothesis:An ordinal clinical staging scheme for canine ASGC can be devised on the basis of responses to therapy for a retrospective cohort of affected dogs. Animals:130 dogs with naturally occurring ASGC. Methods:A simplified clinical stage system and a management algorithm for canine ASGC were derived from retrospective evaluation of a cohort of 80 dogs; applicability of both was then prospectively evaluated in a cohort of 50 dogs. Results:Retrospective evaluation revealed 4 statistically significant negative prognostic indicators for survival: lack of therapy, presence of distant metastases, presence of lymph node metastases, and primary tumor size. Lymph node extirpation was a statistically significant positive prognostic indicator by bivariate analysis. In both retrospective and prospective analyses, the modified clinical stage scheme revealed a significant association with survival time. Conclusions and Clinical Importance: The clinical staging scheme permits differentiation between groups in terms of prognosis and, therefore, decisions on therapy. This will facilitate application of appropriate therapy and enhanced communication and collaboration in further investigations of ASGC. [source]

Sentinel Lymph Node Biopsy for High-Risk Nonmelanoma Skin Cancers

DERMATOLOGIC SURGERY, Issue 7 2007
RACHEL E. SAHN
BACKGROUND Although the utility of the sentinel lymph node biopsy (SLNB) in the staging of melanoma is well established, its usefulness in high-risk nonmelanoma skin cancer (NMSC) is yet to be determined. OBJECTIVE The objective was to report our experience with patients who underwent SLNB for the staging of a high-risk NMSC. MATERIALS AND METHODS We identified 13 patients with a high-risk NMSC who underwent SLNB between 1998 and 2006 and conducted a retrospective review of their medical records and tumor pathology. Their status as regards tumor recurrence and survival was obtained when possible. RESULTS Of 13 patients, 9 had squamous cell carcinoma (SCC), 2 had sebaceous gland carcinoma, 1 had porocarcinoma, and 1 had atypical fibroxanthoma. All SLNB were negative for metastatic disease, but 1 appeared to be a false-negative finding. CONCLUSION Compared to melanoma, SCC of the skin are much less predictable as regards their tendency to metastasize to the regional lymph nodes. Although the SLNB appears to be a reliable staging procedure for NMSC (especially SCC), the yield may be too low to justify its routine use in this patient population. More data are needed to determine when a SLNB is justified in the management of NMSC. [source]

Fas single nucleotide polymorphisms and risk of thyroid and salivary gland carcinomas: A case-control analysis,

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 3 2008
Tang Ho MD
Abstract Background. The purpose of this study was to examine the association between 4 Fas single nucleotide polymorphisms (SNPs) and risk of differentiated thyroid carcinoma (DTC) and salivary gland carcinoma (SGC). Methods. We conducted a case-control study including 279 DTC cases, 165 benign thyroid disease (BTD) cases, 154 SGC cases, 61 benign salivary gland disease (BSGD) cases, and 510 controls. Results. The A744G SNP genotype distribution was significantly different between subjects with SGC or BSGD and controls, while that of the A18272G SNP was significantly different between subjects with DTC or SGC and controls. Risk of SGC was significantly elevated for the 22628 heterozygous CT genotype (odds ratio [OR] = 1.5, p = .050), and risk of BSGD was elevated for the 22628 homozygous TT genotype (OR = 2.9, p = .023). Conclusion. Fas C22628T SNP may be associated with risk of SGC and BSGD, but none of the investigated Fas SNPs was associated with risk of DTC. © 2007 Wiley Periodicals, Inc. Head Neck 2008 [source]

Examining the heritability of anal sac gland carcinoma in cocker spaniels

JOURNAL OF SMALL ANIMAL PRACTICE, Issue 1 2009
Gerry Polton
No abstract is available for this article. [source]

Clinical Stage, Therapy, and Prognosis in Canine Anal Sac Gland Carcinoma

Unique expression of MUC3, MUC5AC and cytokeratins in salivary gland carcinomas

PATHOLOGY INTERNATIONAL, Issue 7 2005
Ji-Hye Lee
The differential diagnosis of salivary gland carcinoma is often difficult because of the confusing histopathological features of the different types of salivary gland carcinomas. The expression of MUC3, MUC5AC, MUC6, cytokeratin (CK)7 and CK20 was studied in 20 mucoepidermoid carcinomas (MEC), 20 adenoid cystic carcinomas (AdCC), and 11 acinic cell carcinomas (ACC). All the cases (51/51, 100%) were positive for CK7, but they were not positive for CK20. All the cases (100%) of the MEC were positive for MUC5AC, while all MEC (100%) were negative for MUC3. Only two cases (10%) were positive for MUC6. All cases (100%) of AdCC were negative for MUC3, MUC5AC and MUC6. Eight cases (73%) of ACC were positive for MUC3, but all the cases (100%) were negative for MUC5AC and MUC6. It is concluded that the positive expression of MUC5AC is very unique to MEC, and that the positive expression of MUC3 is very unique to ACC. These findings will be very useful for the differential diagnosis of the salivary gland carcinomas. [source]

Use of the Vacuum-Assisted Closure Device in Enhancing Closure of a Massive Skull Defect,

THE LARYNGOSCOPE, Issue 6 2004
Umesh S. Marathe MD
Abstract Objectives/Hypothesis: The objective was to describe a novel technique for reconstructing the cranial vertex without the use of free tissue transfer. Study Design: Case report, literature review, and discussion. Methods: A 50-year-old woman presented from a remote Pacific Island community with a 12 × 14-cm, necrotic, grossly contaminated eccrine gland carcinoma of the cranial vertex that extended through the calvarium but did not invade the dura. Following tumor extirpation, the resulting bony defect was 10 × 12 cm in size, with a concomitant scalp defect of 14 × 16 cm. Free tissue transfer was impossible because of severe intimal peripheral vascular disease, posing a challenging reconstructive dilemma. After tumor resection, the bony edges were covered with local scalp flaps and the vacuum-assisted closure device was placed over the wound at a constant setting of ,50 mm Hg. The vacuum-assisted closure device was changed three times per week for 3 weeks. Results: A thick, 1-cm bed of granulation tissue developed over the dura, allowing temporary coverage by a split-thickness skin graft, and the scalp defect decreased in size by approximately 25%. The patient did not develop meningitis, headache, or localized infection as a result of placement of the vacuum-assisted closure device and tolerated the vacuum-assisted closure well. After a requisite period of healing, tissue expanders and calvarial reconstruction will be performed. Conclusion: Use of the vacuum-assisted closure device is a safe, reliable adjunct in the closure of large cranial defects with exposed dura and offers a novel reconstructive option for complex defects of the head and neck. [source]

The prognostic role of comorbidity in salivary gland carcinoma

CANCER, Issue 7 2008
Chris H. J. Terhaard MD
Abstract BACKGROUND. Patients with head and neck cancer are prone to develop significant comorbidity mainly because of the high incidence of tobacco and alcohol abuse, both of which are etiologic and prognostic factors. However, to the authors' knowledge little is known regarding the prognostic relevance of comorbidity in patients with salivary gland cancer. METHODS. A retrospective cohort of 666 patients with salivary gland cancer was identified within the Dutch Head and Neck Oncology Cooperative Group database. For multivariate analysis, a Cox proportional hazards model was used to study the effect of comorbidity on overall survival and disease-specific survival. RESULTS. According to the Adult Comorbidity Evaluation-27 (ACE-27) index, 394 patients (64%) had grade 0 comorbidity, 119 patients (19%) had grade 1 comorbidity, 71 patients (12%) had grade 2 comorbidity, and 29 patients (5%) had grade 3 comorbidity. In multivariate analysis for overall survival, the ACE-27 comorbidity grade was a strong independent prognostic variable. The hazards ratio (HR) of death, including all causes, was 1.5 (95% confidence interval [CI], 1.1-2.1) for patients with ACE-27 grade 1 comorbidity versus grade 0 comorbidity (P < .007). The HR was 1.7 (95% CI, 1.2-2.5) for grade 2 comorbidity (P = .003) and 2.7 (95% CI, 1.5-4.7) for grade 3 comorbidity versus grade 0 comorbidity (P = .001). In the current analysis, ACE-27 comorbidity grade was not an independent prognostic factor for disease-free survival. CONCLUSIONS. To the authors' knowledge, this is the first study concerning the prevalence and relevance of the prognostic comorbidity variable ACE-27 grade in patients with salivary gland cancer. Overall survival, but not disease-free survival, was correlated strongly with ACE-27 grade. Compared with other studies that investigated the effect of comorbidity on patients with head and neck cancer, patients with salivary gland cancer had less comorbidity. Their comorbid status appeared to be reasonably comparable to that of patients with other nonsmoking- and nonalcohol-related cancers. Cancer 2008. © 2008 American Cancer Society. [source]

Lymphatic mapping and sentinel lymph node biopsy in the detection of early metastasis from sweat gland carcinoma,

CANCER, Issue 9 2003
Paul N. Bogner M.D.
Abstract BACKGROUND Several subtypes of sweat gland carcinoma have been found to demonstrate a propensity to metastasize systemically and to regional lymph nodes. The predictive value and benefit of sentinel lymph node (SLN) biopsy have been established in numerous other malignancies, but to the authors' knowledge there is little literature published to date regarding the use of SLN biopsy in patients with sweat gland carcinoma. In the current study, the authors demonstrated the utility of SLN biopsy in detecting subclinical metastases of sweat gland carcinoma, which may result in early treatment. METHODS The authors identified five patients with malignant eccrine tumors in whom SLN biopsy was performed at the study institution. Clinical and histopathologic data were reviewed. RESULTS The five study cases included two cases of aggressive digital papillary adenocarcinoma (both occurring on upper extremity digits), two cases of hidradenocarcinoma (occurring on the knee and foot, respectively), and an eccrine carcinoma (occurring on the scalp). In each biopsy-established case, there was no clinical evidence of metastatic disease, and a wide local excision or amputation was performed with concurrent SLN biopsy. Four of 18 SLNs in 3 of the 5 patients (60%) were found to be positive for metastatic carcinoma, as identified in hematoxylin and eosin stains and/or cytokeratin immunohistochemical stains. All three lymph node-positive patients subsequently underwent regional lymphadenectomy and were found to have no evidence of additional metastases. CONCLUSIONS The results of the current study demonstrate that SLN biopsy detects subclinical metastases from sweat gland carcinomas to regional lymph nodes. SLN mapping and biopsy at the time of resection can provide useful information with which to guide early treatment. Further studies are necessary to determine whether this procedure results in a survival benefit in patients with sweat gland carcinomas. Cancer 2003;97:2285,9. © 2003 American Cancer Society. DOI 10.1002/cncr.11328 [source]

Sebaceous gland carcinoma of the eyelid presenting as a conjunctival papilloma

CLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 2 2005
Jwu Jin Khong MB BS (Hons)
Abstract An unusual presentation of sebaceous carcinoma of the eyelid is described in a 96-year-old man who presented with a large papillomatous palpebral conjunctival lesion in the left upper eyelid. The patient underwent a shave excision of the lesion, followed by a full thickness excision with paraffin section margin control. Histopathology revealed a sebaceous gland carcinoma with no evidence of pagetoid spread. Although rare, sebaceous gland carcinoma should be considered in the differential diagnosis of a conjunctival papilloma. [source]

Fas single nucleotide polymorphisms and risk of thyroid and salivary gland carcinomas: A case-control analysis,

Recurrent salivary gland carcinomas treated by surgery with or without intraoperative radiation therapy

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 1 2008
Allen M. Chen MD
Abstract Background. The optimal treatment for patients with locally recurrent carcinomas of the salivary glands is unclear. Methods. Ninety-nine patients underwent salvage surgery for locally recurrent salivary gland carcinomas. Eighty-one (82%) had previously received radiation. Thirty-seven patients (37%) received intraoperative radiation therapy (IORT) to a median dose of 15 Gy (range, 12,18 Gy) at the time of salvage. Results. The 1-, 3-, and 5-year estimates of local control after salvage surgery were 88%, 75%, and 69%, respectively. A Cox proportional hazard model identified positive margins (0.01) and the omission of IORT (p = .001) as independent predictors of local failure. The 5-year overall survival was 34%. Distant metastasis was the most common site of subsequent failure, occurring in 42% of patients. Conclusions. IORT significantly improves disease control for patients with locally recurrent carcinomas of the salivary glands. The high rate of distant metastasis emphasizes the need for effective systemic therapies. © 2007 Wiley Periodicals, Inc. Head Neck, 2008 [source]

Particle beam radiotherapy for head and neck tumors: Radiobiological basis and clinical experience

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 8 2006
Barbara Alicja Jereczek-Fossa MD
Abstract Background. Head and neck tumors are often located near critical organs, making it impossible to deliver a dose of conventional radiotherapy high enough to eradicate the disease. Our aim was to review the potential benefits and available clinical experience of particle beam therapy (hadrontherapy) in the treatment of these tumors. Methods. A review of the literature was carried out through a MEDLINE search (publications between 1980 and 2005). Results. A review of the available clinical data shows that particle beam therapy can offer several radiobiological and physical advantages over conventional photon radiotherapy: improved dose distribution permits dose escalation within the target and optimal sparing of normal tissue. Preclinical and clinical studies suggest that there may be benefits to using hadrontherapy for tumors characterized by poor radiosensitivity and critical location. At present, the most used hadrons are protons and, as yet on an experimental basis, carbon ions. It is now well accepted that there are certain indications for using proton therapy for skull base tumors (chordoma and chondrosarcoma), paranasal sinus carcinomas, selected nasopharyngeal tumors, and neutron/ion therapy for salivary gland carcinomas (in particular, adenoid cystic tumors). Its viability in other cases, such as locally advanced squamous cell carcinoma, melanoma, soft tissue sarcoma, and bone sarcoma, is still under investigation. Conclusions. Hadrontherapy can be beneficial in the treatment of tumors characterized by poor radiosensitivity and critical location. Further clinical and radiobiological studies are warranted for improved selection of patient population. © 2006 Wiley Periodicals, Inc. Head Neck, 2006 [source]

Apocrine carcinoma of the vulva in a band-like arrangement with inflammatory and telangiectatic metastasis via local lymphatic channels

INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 1 2003
Takahiro Kiyohara MD
Background Primary adenocarcinomas of the vulva have been classified as sweat gland carcinomas, extramammary Paget's disease, and primary breast carcinomas of the vulva. They share some common histopathologic features. Methods We describe a 72-year-old Japanese woman with apocrine carcinoma of the vulva and local lymphatic metastasis. Results The patient presented with a bruise on her inguinal area. Physical examination revealed a 4 cm × 7 cm, dark-red, irregularly elevated tumor on the left labium majora. Dome-shaped, flesh-colored, small papulovesicles were scattered on the abdomen, accompanied by erythema and induration. The lesion showed a band-like arrangement. General examination revealed multiple bone metastases, particularly in the spine. Microscopic examination revealed a moderately differentiated adenocarcinoma with signet ring cells. A few pagetoid clear cells were present in the hypertrophic epidermis. The peripheral papulovesicles demonstrated the same histopathologic view as in inflammatory and telangiectatic, metastatic breast carcinoma. Tumor cells were positive for various ductal and glandular markers. Estrogen and progesterone receptors were not expressed. Ultrastructural findings suggested differentiation towards apocrine or mammary glands because of the presence of an apocrine process and electron-dense mucous granules. The patient died in spite of combination chemotherapy and irradiation therapy. Conclusions We report a rare case of apocrine carcinoma of the vulva in a band-like arrangement with local lymphatic metastasis which showed the clinical and histopathologic characteristics of inflammatory and telangiectatic carcinoma. [source]

Ductal eccrine carcinoma with squamous differentiation: apropos a case

JOURNAL OF CUTANEOUS PATHOLOGY, Issue 6 2007
Vishesh Chhibber
Sweat gland carcinomas are rare. Given this, they can pose a diagnostic challenge especially in shave biopsy specimens. We present a case of ductal eccrine carcinoma with extensive squamoid differentiation that was repeatedly misdiagnosed by multiple dermatopathologists as squamous cell carcinoma in the initial few biopsies. As the distinction between these two neoplasms is crucial to patient management, we highlight the histologic features of this uncommon entity to highlight the potential diagnostic pitfalls. [source]

Unique expression of MUC3, MUC5AC and cytokeratins in salivary gland carcinomas

Association of hepatocyte growth factor expression with salivary gland tumor differentiation

PATHOLOGY INTERNATIONAL, Issue 12 2003
Keiichi Tsukinoki
To clarify the significance of hepatocyte growth factor (HGF) expression in salivary gland tumors, HGF distribution in tissue sections and HGF concentrations in saliva and serum were examined. Sixty salivary gland adenomas, 61 salivary gland carcinomas and three autopsy fetuses were studied. Hepatocyte growth factor expression was observed in the duct-type luminal cells by immunohistochemical staining and in situ hybridization. However, HGF failed to be expressed in acinar cells and myoepithelium of normal salivary gland tissue. Hepatocyte growth factor tended to be expressed more intensely in benign salivary gland tumors than in malignant salivary gland tumors (P < 0.0001). In highly malignant tumors, the expression was limited in some cases. Salivary and serological HGF concentrations of 18 patients, comprised of 12 benign cases and six malignant cases, were analyzed before and after operation by an ELISA system. The concentrations were distinctly elevated after operation, in both saliva and serum, compared to before operation (P < 0.0005). However, there were no significant relationships between HGF concentration and histology, age, gender, size or location. Our findings suggest that HGF may play an important role in the development of salivary ducts of normal salivary tissues and differentiation of ductal structures of their neoplasms, while HGF kinetics in saliva and serum would be less likely to reflect the neoplastic character, benign or malignant. [source]

Increased expression of cyclooxygenase-2 in human salivary gland tumors

PATHOLOGY INTERNATIONAL, Issue 10 2001
Kazunari Sakurai
We examined the immunohistochemical localization of cyclooxygenase (COX)-2 in human salivary gland tumors. Thirty salivary gland adenomas (SGA), 40 salivary gland carcinomas (SGC) and 15 normal salivary glands (NSG) were studied. NSG showed restricted COX-2 staining only in the epithelial cells of salivary ducts. In contrast, COX-2 protein was detected in 27 cases of SGA (90%), except for three myoepitheliomas, and in all cases of SGC (100%) at various intensities and in various fashions. Thirteen SGA (43%) and 36 SGC (90%) cases showed strong COX-2 staining predominantly in tumor cells containing ductal components, as did serous and mucous acinic components of acinic cell carcinomas, mucoepidermoid carcinomas and mucinous carcinomas. These findings may suggest that COX-2 in salivary gland tumors is expressed in tumor cells derived from pluripotential ductal epithelium that can histologically develop into either serous or mucinous acinar cells. [source]

DNA image cytometry in malignant and benign sweat gland tumours

BRITISH JOURNAL OF DERMATOLOGY, Issue 4 2000
M. Vogelbruch
The histopathological differentiation between well-differentiated carcinomas and atypical adenomas of sweat gland origin may be difficult, even if immunohistochemical methods are used. Therefore, additional techniques may be helpful. We previously demonstrated that DNA image cytometry (ICM-DNA) can be useful in distinguishing between malignant and benign clear cell hidradenoma. In the present study, a larger series of sweat gland tumours, with a clear-cut diagnosis as malignant or benign on histopathological criteria, was examined by ICM-DNA. Enzymatic cell separation specimens were prepared from paraffin-embedded tissues of 18 sweat gland carcinomas (14 porocarcinomas, one classic eccrine adenocarcinoma, two microcystic adnexal carcinomas and one mostly ductal apocrine carcinoma) and 47 benign sweat gland tumours (three syringocystadenomas, five spiradenomas, 14 cylindromas, three syringomas, seven nodular hidradenomas, 10 cutaneous mixed tumours, four poromas and one apocrine hidrocystoma). Specimens were examined by ICM-DNA according to the current recommendations of the European Society for Analytical Cellular Pathology with the AutoCyte QUIC-DNA workstation using mesenchymal cells as an internal reference. DNA aneuploidy was detected by the stemline interpretation according to Böcking and/or at least three 5[c]-exceeding events. DNA aneuploidy was detected in 16 of 18 (89%) of the sweat gland carcinomas, but in none of the 47 adenomas. These results suggest that the detection of DNA aneuploidy in sweat gland tumours using ICM-DNA is a clear and specific indicator of prospective malignancy. [source]

Lymphatic mapping and sentinel lymph node biopsy in the detection of early metastasis from sweat gland carcinoma,

Loss of heterozygosity on chromosome 6q correlates with decreased thrombospondin-2 expression in human salivary gland carcinomas

CANCER SCIENCE, Issue 6 2003
Munehiro Kishi
Since loss of heterozygosity (LOH) on the long arm of chromosome 6q is frequently observed in salivary gland carcinomas, we examined 28 salivary gland carcinomas using 24 microsat-ellite markers mapping to 6q15,27 to identify the commonly deleted region that we felt might contain one or more tumor suppressor genes. LOH was detected in at least one locus in 10 of 28 tumors (35.7%). The most frequently deleted regions occurred between D6S1581 and D6S305 (LOH cluster region 1 (LCR1) and between D6S297 and D6S1590 (LCR2). LOH was observed in 60% of adenoid cystic carcinomas (ACC) and in 57.1% of mucoepider-moid carcinomas (MEC), but was not observed in any locus in any other histological subtypes studied. The gene encoding for thrombospondin-2 (TSP-2) is located in LCR2 and 8 of 9 tumors demonstrating LOH in this region also showed significantly decreased TSP-2 expression by immunohistochemistry. As TSP-2 is a potent inhibitor of tumor growth and angiogenesis, we examined whether TSP-2 expression correlated to microvascular angiogenesis in these tumors and discovered that microvessel counts were significantly higher in lesions with decreased TSP-2 expression (P=0.02). Our results suggest that 6q LOH may be a significant event in salivary gland carcinogenesis, particularly in ACC and MEC, and that the correlated decrease of TSP-2 expression also plays a critical role. [source]

3462: Epithelial tumours of the lacrimal gland

ACTA OPHTHALMOLOGICA, Issue 2010
SE COUPLAND
Purpose To provide an overview of benign and malignant epithelial neoplasms arising in the lacrimal gland. Methods In the normal orbit, the lacrimal gland is clinically impalpable and is situated in the lacrimal fossa posterior to the superotemporal orbital rim. The gland is not truly encapsulated and is divided into the deep orbital and the superficial palpebral lobes by the levator aponeurosis. The retrospective study of 265 epithelial tumours of the lac¬rimal gland conducted by the Armed Forces Institute of Pa¬thology (AFIP) improved our understanding of the histologic classification and clinical behavior of epithelial tumours of the lacrimal gland. The historic works of Forrest (1954) and Zimmerman (1962) alleviated confu¬sion by applying to epithelial tumours of the lacrimal gland the histopathologic classification of salivary gland tumours. Epithelial tumours originating from the lacrimal gland should be staged according to the 7th Edition of the Tumor Node Metastasis (TNM) system, which is a modification of the World Health Organization (WHO) classification of salivary gland tumours. Results The most common benign epithelial tumour of the lacrimal gland is the pleomorphic adenoma. The most common lacrimal gland carcinomas include adenoid cystic carcinoma, "carcinoma ex pleomorphic adenoma", primary adenocarcinoma & mucoepidermoid carcinoma. The regional lymph nodes include: preauricular, submandibular and cervical lymph nodes. The lung is the most common metastatic site, followed by bone and remote viscera. Conclusion Subtyping & grading of lacrimal gland epithelial tumours requires the latest WHO/AFIP classifications. Staging of these tumours should follow the 7th TNM system. Collection of datapoints is essential to identify biomarkers, which includes only nuclear N23 and MIB-1 at present. [source]

Base of skull recurrences after treatment of salivary gland cancer with perineural invasion reduced by postoperative radiotherapy

CLINICAL OTOLARYNGOLOGY, Issue 6 2009
A.M. Chen
Objectives:, To determine the effect of postoperative radiation therapy for salivary gland carcinomas in the presence of microscopic perineural invasion. Design and setting:, Retrospective review at an academic tertiary center. Participants:, One hundred and forty patients with pathological evidence of perineural invasion at the time of initial surgery for salivary gland carcinomas were analysed. Sixteen patients (11%) had major (named) nerve involvement. Ninety-four patients (67%) received postoperative radiation therapy to the primary site, and the portal films of 65 of these patients were available for review. Main outcome measures:, The incidence of skull base recurrences among patients treated by surgery with or without postoperative radiation therapy. Results:, Ten patients experienced skull base recurrences. T4 disease and the omission of postoperative radiation therapy were identified as significant predictors of skull base recurrence. Postoperative radiation therapy reduced the actuarial probability of skull base recurrence from 15% to 5% (P = 0.03). The crude rates of skull base recurrence were 6% (2/35) and 10% (3/30), respectively, for patients whose skull base were and were not confirmed to be encompassed in the irradiation field. The 5-year overall survival for patients who experienced a skull base recurrence was 19% compared to 91% for those who did not (P < 0.001). Conclusion:, The use of postoperative radiation therapy significantly reduced the incidence of skull base recurrence among salivary gland carcinoma patients with perineural invasion. Clin. Otolaryngol. 2009, 34, 539,545. [source]