Malignant PEComa: a case report with emphasis on clinical and morphological criteria
نویسندگان
چکیده
منابع مشابه
Malignant PEComa: a case report with emphasis on clinical and morphological criteria
BACKGROUND Malignant perivascular epitheliod cell tumor (PEComa) is a very rare entity composed of distinctive perivascular epitheliod cells with variable immunoreactivity for melanocytic and muscle markers. At present this neoplasm does not have a known normal cellular counterpart and the natural history is often unpredictable. Up to now, few cases of PEComa have been described and treatment m...
متن کاملMalignant perivascular epithelioid cell tumor (PEComa) of cervix with TFE3 gene rearrangement: a case report.
In this study, we reported the first PEComa arising within the cervix with TFE3 gene rearrangement and aggressive biological behavior. Morphologically, the tumor showed infiltrative growth into the surrounding parenchyma. The majority of tumor cells were arrayed in sheets, alveolar structures, or nests separated by delicate fibrovascular septa. There was marked intratumoral hemorrhage, necrosis...
متن کاملMalignant Meningioma with Lumbar Spinal Metastasis (a case report)
Meningioma is considered as a benign central nervous system tumor that accounts for approximately 18% of all brain tumors. About 5% of meningioma tumors are malignant and have more aggressive clinical signs and worse prognosis compared to benign tumors. Extracranial metastasis of meningioma is rare but in the case of occurrence, it is more prevalent in lung, liver and lymph nodes. Osseous metas...
متن کاملPrimary duodenal malignant melanoma: A case report
Background: Melanoma is a neoplasm derived commonly from melanocytic cells of skin. Although coetaneous presentation of malignant melanoma is easily recognizable, the presentation of melanoma in other organs is so confusing. In particular, when it metastasizes to other organs, many bizarre figures and unusual organs may be involved. In this report, we present a case of primary duodenal malignan...
متن کاملMALIGNANT HISTIOCYTOSIS: A CASE REPORT AND REVIEW OF THE LITERATURE
Malignant histiocytosis (MH) is a rare hematologic malignancy, especially in the first decade of life. The disease is clinically characterized by fever, hepatosplenomegaly, lymphadenopathy, pancytopenia and jaundice, and histologically by systemic proliferation of malignant histiocytes and hemophagocytosis. The prognosis is poor and often the diagnosis is not made before death. Because of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BMC Surgery
سال: 2011
ISSN: 1471-2482
DOI: 10.1186/1471-2482-11-3