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Benign Proliferation (benign + proliferation)
Selected AbstractsAcquired progressive lymphangioma in an HIV-positive patientJOURNAL OF CUTANEOUS PATHOLOGY, Issue 11 2007Aimee S. Paik Acquired progressive lymphangioma (APL) is a rare condition characterized by benign proliferation of thin-walled vessels lined by flattened endothelial cells.1,4 Although benign, the acquired nature of this tumor may lead to misdiagnosis as a malignant vascular tumor. This is especially true if the patient has risk factors, such as immunodeficiency. In this article, the authors present a case of APL in an HIV-positive man. [source] Cutaneous plasmacytosis associated with lung and anal carcinomasJOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY & VENEREOLOGY, Issue 4 2006JM Martín Abstract Cutaneous plasmacytosis is a rare disorder characterized by a benign proliferation of mature plasma cells that appears as multiple dark-brown to purplish skin lesions, often associated with polyclonal hypergammaglobulinaemia. We present the case of a 55-year-old Caucasian man who suffered from a cutaneous plasmacytosis associated with two different carcinomas. Cutaneous plasmacytosis seems to be a reactive process because most cases reported are not associated with any apparent underlying disease. Nevertheless, because few reported cases were associated with malignancies, screening of additional neoplasms would be justified. [source] Rapidly growing nodular pseudoangiomatous stromal hyperplasia of the breast in an 18-year-old girl,APMIS, Issue 5 2006Case report Pseudoangiomatous stromal hyperplasia (PASH) of the breast is a rare benign proliferation of mesenchymal stromal cells with irregular slit-like formations resembling angiomatous structures. In the majority of cases this lesion is a focal microscopic finding in breast biopsies performed for benign or malignant diseases. It may present in a pure diffuse or nodular form. The exact etiology and pathogenesis of this tumor-like lesion is still unknown, but a proliferative response of myofibroblasts to hormonal stimuli has been postulated. A large 12×9×3.5 cm rapidly growing nodular form of PASH of the breast in an 18-year-old woman is here described with clinical and histological findings. A possible hormonal etiology was indicated by elevated progesterone (three-fold) and decreased estrogen serum levels. Different diagnostic lesions, such as giant fibroadenoma and low-grade angiosarcoma, are discussed. To the authors' knowledge this is only the fourth case of nodular PASH of the breast reported in the English literature. [source] Liver tumors: Pediatric population,LIVER TRANSPLANTATION, Issue 11 2008Milton J. Finegold Liver tumors in childhood are rare and are typically not detected clinically until they reach a large size and often spread within the organ or metastasize. This can make surgical resection problematic, and almost all of them require extirpation for cure. With very effective chemotherapy for hepatoblastoma and to some extent for sarcomas, many cancers can be shrunk to permit partial hepatectomy, but for most hepatocarcinomas, some of the other malignancies, and even some benign proliferations, their location at the hilum and multiplicity of masses in multiple lobes make transplantation the treatment of choice. Major advances in diagnostic imaging, especially enhanced computed tomography and magnetic resonance imaging, permit a preoperative choice of resection versus transplantation to be achieved in almost all instances, and for the remainder, intraoperative ultrasonography can further help to determine the most desirable approach. The outcome is very much better in the case of hepatoblastoma when transplantation is a primary modality rather than following unsuccessful attempts at resection. In this review, transplantation for liver tumors in children is considered from all aspects, including the importance of screening for tumors whenever possible to avoid the need for transplantation. Liver Transpl 14:1545,1556, 2008. © 2008 AASLD. [source] | ||||||||||