A 30-year-old female presented with multiple, erythematous, velvety, slowly growing, asymptomatic nodules on the scalp of two-year duration. Biopsy revealed a vascular tumor with arborizing blood vessels arranged in a retiform pattern, lined with hobnail endothelial cells that stained positively with CD34, with few intravascular papillae. Two year follow up of the case after surgical excision s...

Epitheloid hemangioendothelioma (EHE) is an uncommon angiocentric neoplasm of intermediate malignant potential. This tumor is frequently seen in the lungs and liver, but its presentation in the oral cavity is rare. In the oral cavity, gingival region is the common sites of occurrence. We report a rare case of epitheloid hemangioendothelioma in a 48-year-old male, presenting as a growth in the u...

Hemangioendothelioma is a rare neoplasm of bone that uncommonly involves the skull. We present a case of grade III malignant hemangioendothelioma (also known as angiosarcoma) of the skull in a 13-year-old boy and describe the plain film, CT, and MR appearance of this neoplasm as well as its histopathology.

Spindle cell lipoma is a benign, lipomatous tumor arising most frequently in the subcutaneous on back of neck and shoulders males aged third through seventh decade life. However, we encountered case an unusual spindle skin layer dorsum nose. A total two reports have been found nasal regions. To our knowledge, this first report dorsum.

The biosynthesis of extracellular matrix proteins by primary cultures of endothelial cells from human umbilical vein, and by clones from a murine hemangioendothelioma, was studied and compared to that reported for endothelium cultured from other sources. Umbilical vein endothelial cells secreted two glycoproteins-fibronectin and thrombospondin-which comprise the major proportion of the protein ...

BACKGROUND Pseudomyogenic hemangioendothelioma (PHE) is an unusual vascular tumor of intermediate malignancy that rarely metastasizes and tends to arise in the lower limbs of young adults and children. Histologically, PHE shows fascicular proliferation of eosinophilic spindle cells and/or epithelioid cells showing "pseudomyogenic" morphology. Immunohistochemically, PHE is usually positive for v...

Synovial sarcomas are soft tissue neoplasms mostly located in the lower extremities of young adults. A case of synovial sarcoma of the thigh in a 35-year-old male with the predominant epithelial component is reported. Microscopically the tumor showed variable-sized well-differentiated glands lined by the cuboidal cells with small foci of spindle cell component between glandular structures...

Spindle cell carcinoma (SpCC) is an unusual variant of squamous (S.C.C.) the head and neck region. It a rare biphasic neoplasm.  SpCC morphological S.C.C.  characterized by presence both carcinomatous as well sarcomatous component accounts for 2 to 3% all S.C.C.s. Seven years ago, W.H.O. classification has placed this tumor under malignant epithelial tumors called it SpCC. The histoge...

OBJECTIVE To determine common imaging findings of hepatic epithelioid hemangioendothelioma on magnetic resonance images. MATERIALS AND METHODS A search was made of three institutional databases between January 2000 and August 2012. Seven patients (mean age, 47 years; range, 21-66 years; 6 women) with pathology-confirmed diagnosis of hepatic epithelioid hemangioendothelioma who had undergone m...