Polymorphous hemangioendotheliomas are rare, low-grade borderline malignant vascular tumors of endothelial cell origin. To the best of our knowledge (MEDLINE 1966-2002), there have been nine cases of polymorphous hemangioendothelioma reported in the English literature. Most of the initial patients reported were men, but we present the third case in a woman. Her previous radiation history to the...

air spindles are one of the main elements of precise machine tools. vibration of these spindles is one of the vital issues necessary for investigation. among parameters which influence air spindle vibrations are rotational speed, compression air method, input nozzle diameter, air gap pressure. in this study using ansys, the effects of air gap thickness on air spindle vibrations have been invest...

Sarcomatoid carcinoma is a type of spindle cell neoplasm. These varieties neoplasms comprise diverse collection benign and malignant neoplasms. carcinoma, also known by various other names such as Spindle Lane’s tumor, to name few, an exceedingly rare aggressive variant squamous 3, 7, 8 The variation in its nomenclature reflects the divergent interpretation sarcomatoid component reactive or neo...

Epithelioid hemangioendothelioma (EHE) was first described by Weiss and Enzinger in 1982 and has been suggested to be a malignant vascular neoplasm with indolent behavior [1]. A 65-year-old female patient presented to our hospital with fever, back pain and pain in her buttocks. On examination, the only pathological sign were cutaneous nodules appearing in her right thigh (Figure 1 A). The histo...

Epithelioid hemangioendothelioma is an uncommon vascular tumor of intermediate malignant potential. Hepatic epithelioid hemangioendothelioma (HEHE), a rare sarcoma of the liver, usually appears as multiple nodules involving both hepatic lobes, and can be misdiagnosed as metastatic carcinoma on the basis of its radiologic manifestations. HEHE is composed of neoplastic endothelial cells that clos...

Retiform hemangioendothelioma (RH) is an infrequently encountered vascular neoplasm of intermediate or borderline malignancy. Treatment of RH is controversial. We present a case of a 44-year-old Asian male presenting with an unresectable RH of the pelvis. The patient was treated with concurrent low-dose Cisplatin and External beam Radiation (4140cGy in 180cGy per fraction). This is the first re...