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hemangiosarcoma/dygliakrūmis
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 29 rezultatus
Multifocal epithelioid angiosarcoma of bone: a potential pitfall in the differential diagnosis with metastatic carcinoma.
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A case of multifocal epithelioid angiosarcoma of the femur, tibia, fibula, and astragalus in a 54-year-old man is reported. The tumor was composed of nests and cords of malignant cells with epithelioid morphology, with foci of vascular differentiation, necrosis, and hemorrhage. By
Morphological and cytogenetic studies of angiosarcoma in Stewart-Treves syndrome.
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A morphological and cytogenetic analysis of a multifocal angiosarcoma in a typical case of Stewart-Treves syndrome is reported. The morphological analysis indicated differentiation along both blood and lymph vessel endothelium lines. By light and electron microscopy there were areas with
Histogenesis of Kaposi's sarcoma and angiosarcoma of the face and the scalp.
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This study reviews data on the histogenesis of Kaposi's sarcoma and angiosarcoma derived from clinical features, histology, electron microscopy, enzyme histochemistry, and immunochemistry of both diseases. Their hemorrhagic clinical appearance contrasts the predominantly lymphatic histologic
Radiation-induced laryngeal angiosarcoma after cervical tuberculosis and squamous cell carcinoma: case report and review of the literature.
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Primary laryngeal angiosarcoma (LA) is quite rare with only 13 cases reported in English literature to date. A case of LA after radiation therapy for tuberculosis and squamous cell carcinoma is reported. A 70-year-old woman had a history of radiation therapy for left cervical tuberculosis at the age
The histogenesis of angiosarcoma of the face and scalp: an immunohistochemical and ultrastructural study.
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Thirteen cases of angiosarcoma of the face and scalp have been examined using immunohistochemistry and electron microscopy. Endothelial cell markers have been employed in an immunoperoxidase technique on tissue that has either been routinely processed, periodate-lysine paraformaldehyde fixed (PLP)
Staining for factor VIII related antigen and Ulex europaeus agglutinin I (UEA-I) in 230 tumours. An assessment of their specificity for angiosarcoma and Kaposi's sarcoma.
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In this study we examined the staining reactivity of commercially available antisera to factor VIII related antigen (F VIII RAg) and Ulex europaeus agglutinin I (UEA-I) on sections from 230 formalin fixed paraffin embedded tumours. These included 196 sarcomas, 20 carcinomas and 14 angiomas. All
Fine-needle aspiration biopsy of hepatic angiosarcoma: report of a case with immunocytochemical findings.
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Hepatic angiosarcoma (Kupffer cell sarcoma) is a very rare but ominous malignancy. We report a case diagnosed by fine-needle aspiration biopsy (FNAB). The smear showed malignant spindle cells and a few rounded cells. The diagnosis was made on the cell block by the characteristic scaffolding
Intimal angiosarcoma of the aorta with tumour embolisation causing mesenteric ischaemia. Report of a case diagnosed using CD31 immunohistochemistry in an intestinal resection specimen.
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Primary intimal angiosarcomas of the aorta (i.e. mostly intraluminal sarcomas with evidence of endothelial differentiation) are extraordinarily rare. We report a case in which the diagnosis was accurately made using immunohistochemistry in an intestinal resection specimen and confirmed during
Fine-needle aspiration cytology of postirradiation sarcomas, including angiosarcoma, with immunocytochemical confirmation.
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Postirradiation sarcomas are an unusual but well-recognized late effect of cancer therapy. In this article, a fine-needle aspiration (FNA) series of four cases is presented. There were three female patients and one male patient, with an age range of 28-55 yr (mean, 41). Two of the patients were
Primary Small Intestinal Angiosarcoma: Epidemiology, Diagnosis and Treatment.
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Angiosarcoma is an aggressive mesenchymal sarcoma of endothelial cell origin with high mortality. Its occurrence in the small intestine is exceedingly low. In addition to the rarity of small intestine angiosarcoma, the nonspecific early clinical symptoms obscure the suspicion of such tumors and
Pulmonary artery sarcoma with angiosarcoma phenotype mimicking pleomorphic malignant fibrous histiocytoma: a case report.
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Primary sarcomas of the major blood vessels can be classified based on location in relationship to the wall or by histologic type. Angiosarcomas are malignant neoplasms that arise from the endothelial lining of the blood vessels; those arising in the intimal compartment of pulmonary artery are rare.
Angiosarcoma arising in a solitary schwannoma (neurilemoma) of the sciatic nerve.
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Angiosarcomas rarely develop within a peripheral nerve or a peripheral nerve sheath tumor. We describe an epithelioid angiosarcoma that arose in a benign schwannoma (neurilemoma) of the right thigh in a 65-year-old man who did not have von Recklinghausen's disease. Histologically, the resected tumor
Angiosarcomas express mixed endothelial phenotypes of blood and lymphatic capillaries: podoplanin as a specific marker for lymphatic endothelium.
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Angiosarcomas apparently derive from blood vessel endothelial cells; however, occasionally their histological features suggest mixed origin from blood and lymphatic endothelia. In the absence of specific positive markers for lymphatic endothelia the precise distinction between these components has
Use of immunohistochemical procedures in diagnosing angiosarcoma. Evaluation of 98 cases.
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BACKGROUND
Differential diagnosis of angiosarcoma, predominantly showing a non- or poorly vasoformative proliferation from other types of sarcomas, poorly differentiated carcinomas, and amelanotic melanoma, is often problematic.
METHODS
The use of antibodies directed against Factor VIII-related
The growth of two murine hemangioendotheliomas intracranially, subcutaneously, and in culture, and their comparison with human cerebellar hemangioblastomas: morphological and immunohistochemical studies.
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Two thorium dioxide-induced murine hemangioendotheliomas, 42021 TCT and 44347 TST, were grown subcutaneously (for up to 22 and 15 passages respectively) or intracranially (single passage) and were adapted to culture as a monolayer and, in a limited fashion, in an organ culture system or in rotary
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