Home About us Contact
|
Home About us Contact | ||
|
|
||
Subcutaneous Mass (subcutaneous + mass)
Selected AbstractsFine-needle aspiration cytology of subcutaneous toxoplasmosis: A case reportDIAGNOSTIC CYTOPATHOLOGY, Issue 10 2010Xiaowei Chen M.D. Abstract Toxoplasmosis is a common opportunistic infection in patients with AIDS in whom it typically presents as encephalitis, pneumonia, lymphadenitis, and myocarditis. Skin involvement is very rare and, to our best knowledge, Toxoplasma gondii forming a subcutaneous mass has not been reported. Here, we report the findings of an interesting case of subcutaneous toxoplasmosis with the cytological appearance of an inflammatory fibrovascular lesion in a HIV-positive patient and discuss the differential diagnosis. Diagn. Cytopathol. 2010;38:716,720. © 2009 Wiley-Liss, Inc. [source] Cranial fasciitis of childhoodINTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 2 2003Margarita Larralde MD A 2-month-old boy was seen at our pediatric dermatology department with a history of a tumoral lesion of the scalp since his birth. On examination he had a single, ovoid, firm, 2 × 1.8-cm painless subcutaneous mass on the temporal left calvarium, covered by normal skin (Fig. 1). It had experienced explosive growth in the preceding 2 weeks. There was no history of previous trauma in the area. The remainder of the examination was normal. Roentgenographic studies of the skull revealed a soft-tissue mass without involvement of the underlying bone. Ultrasonography of the lesion showed it to be an echolucid tumor. With the presumed diagnosis of dermoid cyst we sent the patient for surgical removal. At surgery, the lesion did not have the typical surgical appearance of a cyst. The histopathologic exam of the specimen was interpreted as cranial fasciitis of childhood (Fig. 2). Immunohistochemistry showed diffuse positivity for vimentin and muscle actin. After 1 year the patient is free of lesions. Figure 1. Lesion at the temporal left calvarium Figure 2. Proliferation of loosely arranged spindle cells in a loose myxoid stroma (H&E stain, × 40) [source] 980-nm laser diode and treatment of subcutaneous mass in Proteus-like syndromeJOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY & VENEREOLOGY, Issue 1 2010J Buis No abstract is available for this article. [source] Extragenital subcutaneous cellular angiofibroma,APMIS, Issue 3 2007Case report Cellular angiofibroma (CAF) is a rare distinctive mesenchymal neoplasm that occurs almost exclusively in the genital area. We report the case of a 38-year-old woman who presented with an asymptomatic subcutaneous mass, 3.5 cm in diameter, located in the left hypochondrium, which had progressively enlarged during the previous 6 months. The lesion was completely excised. No recurrence was observed 3 months after the excision. A review of the literature,and including the present report,revealed five cases (three men and two women) with location outside the urogenital tract. Mean age was 57 (range 38,78) years; mean 41 years for women and 68 years for men. Average tumor size was 9 (range 3.5,25) cm; mean 5 cm for women and 12 cm for men. Tumors were located in the superficial soft tissue of the trunk, except for one case in the retroperitoneum. Mean follow-up was 29 (range 3,102) months, and no patient developed recurrence or metastasis. Extragenital CAF, except for location, shows similar clinicopathological features to genital CAF. Simple tumorectomy appears to be adequate treatment. Morphologically, CAF is closely related to spindle cell lipoma. [source] Myxoinflammatory fibroblastic sarcoma of the neckJOURNAL OF CUTANEOUS PATHOLOGY, Issue 5 2005Rob McFarlane Background:, Myxoinflammatory fibroblastic sarcoma (MIFS), also named inflammatory myxohyaline tumor of distal extremities with virocyte or Reed-Sternberg cells, is a rare tumor typically presenting as a painless mass in the extremities. Patients:, We present an unusual case of MIFS presenting as a subcutaneous neck mass. This is the first reported case of MIFS presenting in the neck. Results:, Therefore, this lesion must be considered in the differential diagnosis for painless subcutaneous masses presenting not only in the distal extremities, but also in the neck. Conclusion:, MIFS has only recently been recognized. The differential diagnosis for MIFS is broad, and it can often be mistaken for several different inflammatory and neoplastic processes, which may require different treatment. [source] Cutaneous Congenital Plexiform Cellular Schwannoma: A Simulant of Malignant Peripheral Nerve Sheath Tumor of Childhood , A Case Report and Literature ReviewJOURNAL OF CUTANEOUS PATHOLOGY, Issue 1 2005M. Matthews Cutaneous plexiform schwannoma is a rare multilobulated variant of benign schwannoma. When presenting as the cellular subtype with significantly increased proliferative rate, diagnostic consideration of a malignant peripheral nerve sheath tumor is prompted. However, follow up demonstrates a benign natural history with propensity for local recurrence and typical lack of association with neurocutaneous syndromes. These lesions most commonly occur as cutaneous and subcutaneous masses of the extremities in the first four decades. Only 9 cases of congenital tumors are reported. A case of congenital plexiform cellular schwannoma, presenting as a cutaneous mass measuring 3.5 × 2.5 × 2.0 cm, excised from the left upper arm of a 16 month old female is discussed. Regions of increased cellularity and proliferation co-localized and were unassociated with nuclear anaplasia. Mitotic figures numbered 7 per 10 400x fields. The tumor cells were strongly immunoreactive for S-100 protein. The MIB-1index was multifocally 25% and p53 protein over expression was present in 50% of nuclei. Following excision with free margins the tumor locally recurred after 16 months. The recurrence was morphologically identical to the original lesion. Recognition of the clinical and morphological characteristics of this rarely encountered benign neoplasm will facilitate in diagnosing this entity. [source] Disseminated haemangiosarcoma in an Eastern barred bandicoot (Perameles gunnii)AUSTRALIAN VETERINARY JOURNAL, Issue 9 2000KB BODLEY A captive adult male Eastern barred bandicoot (Perameles gunnii) presented with three palpable subcutaneous masses in November 1998. A diagnosis of haemangiosarcoma was made based on histological examination of one excised mass. Euthanasia of the animal was performed 11 days postsurgery and a proliferative lesion in the paralumbar musculature and similar, smaller proliferative lesions surrounding the right popliteal lymph node and in the ventricular wall of the heart were found. Metastatic lesions were found in the liver and lung. The histological features of the neoplastic tissues supported the diagnosis of a poorly differentiated, disseminated haemangiosarcoma. This is the first reported case of haemangiosarcoma in the Eastern barred bandicoot. [source] | ||||||||||