Stranica 1 iz 31 rezultatima
The characteristics of the germinal matrix vasculature were studied in the developing fetal brain using immunocytochemical methods. A preliminary comparative immunocytochemical study was made on six fetal brains to compare endothelial staining by Ulex europaeus I lectin with that of antibody to
We report the case of a massive hemorrhagic/thrombosed functional adrenal adenoma, a very uncommon mass lesion of the adrenal gland. The lesion contained large areas that histologically mimicked the pattern of an angiosarcoma. Immunoperoxidase staining confirmed that the vascular lining cells were
Primary pulmonary angiosarcoma is an extremely rare disease. Chest computed tomography demonstrates solitary or multifocal lesions, sometimes associated with ground-glass opacities or pleural effusion. Diagnosis is based on histological examination that reveals spindle-shaped epithelioid cells with
Are there any phenotypic and structural/architectural changes in the vessels of endometrium and superficial myometrium during the normal menstrual cycle in healthy women and those with heavy menstrual bleeding (HMB)?
Spatial and temporal differences in protein levels of endothelial cell (EC) markers
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
This is a report of a case of Bellini duct carcinoma of the kidney. A 72-year-old male was admitted to our hospital for the treatment of left renal tumor. The abdominal computed tomographic scan showed hypoattenuating tumor with infiltrative spread into the renal cortex. The renal angiography
Low-grade tubular-mucinous renal neoplasm (LGTMRN) was recently established as a distinct carcinoma classification. A 70-year-old, female traffic accident victim underwent a detailed examination that disclosed a huge mass in the lower pole of the left kidney. The patient underwent a nephrectomy
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
A case of epithelioid hemangioendothelioma (EHE) of the left lower extremity in a 50-year-old male is discussed. The neoplasm presented as a tan-purple, painful mass involving the fourth digit of the left foot. Following an excisional biopsy and partial amputation of the fourth digit, the lesion
We describe a 40-year-old white man with a red-brown, indurated plaque on the proximal aspect of his right thigh. The lesion had been present since birth, and the patient had a 20-year clinical history of recurrent cellulitis in the same area. The histopathologic features of the lesion included
We present a case of a congenital angiomatoid malignant fibrous histiocytoma. This rapidly growing lesion, which was located in the subcutis of the left upper arm, was excised at the age of 8 1/2 months. The patient, a girl, was well and free of disease 10 months after surgical removal of the tumor.
The clinical, histologic, and immunohistochemical features of six cases of hemorrhagic adrenal pseudocysts are reported together, with a review of the English literature on this topic since 1950. The mean age at presentation was 57 years (range, 30-72 yr). There were four men and 2 women. The
A case report of angiosarcoma of the tongue is presented. The specimen revealed single and clustered large, pleomorphic, and spindle-shaped cells with a markedly hemorrhagic background. Tumor cells showed expression of thrombomodulin and E-selectin, but no expression of Factor VIII-related antigen,
Giant vascular eccrine spiradenoma (GVES) is a rare variant of benign tumors of the sweat glands, which differs from common eccrine spiradenoma in both its size and vascularity. Clinically as well as macroscopically, this intradermal or subcutaneous encapsulated tumor might be mistaken for an
The morphological and immunohistochemical features of a laryngeal angiosarcoma are described. Initially, the tumour was interpreted as a poorly differentiated squamous cell carcinoma. The laryngectomy specimen contained an extensive and haemorrhagic tumour consisting of irregular and dissecting