Sir Angiosarcomas (AS) are rare malignant neoplasms of mesenchymal origin that exhibit vascular di¡erentiation. They mainly a¡ect adult men. They account for approximately 1% of all sarcomas and 35% primarily a¡ect the skin, usually on the head and neck (1). Ten percent of angiosarcomas develop in chronic lymphoedema (2). Some are associated with lymphoedema due to conditions such as trauma, co...

Intracranial Fibroblastic neoplasms developed in 16 of 19 hamsters inoculated intracerebrally with bovine papilloma virus. The tumors presumably arose in the meninges and infiltrated the adjacent brain along the vascular channels. Tumor nodules that developed in the subcutis of the extremities, ears, and body were probably due to viremia following intracerebral inoculation. Fibroblasts of the c...

Albino patients are at great risk for developing cutaneous neoplasms, including melanomas. In this paper we describe the dermatoscopic findings of nevi in two patients with oculocutaneous albinism type Ia (OCA-Ia) highlighting that they manifest a vascular pattern similar to that described for amelanotic melanoma. We propose managing these patients with dermoscopy, using the comparative approac...

Cutaneous leiomyomas are benign smooth muscle neoplasms of the skin. They arise from vascular, arrector pili, genital, and areolar smooth muscles. The most common localizations of cutaneous leiomyomas are the extensor surfaces of the extremities and the trunk. To our knowledge, only few cases of one-sided nipple leiomyomas have been reported, but two-sided nipple leiomyomas have not been presen...

Angiosarcoma is a rare tumor of bone that uncommonly involves the skull. Primary neoplasms of the skull represent 2.6% of primary neoplasms of bone. We wish to report a case of angiosarcoma of he skull in an 18-year-old pregnant woman who presented with a rapidly growing left frontotemporal mass. Neuroimaging revealed a left frontotemporal mass with destruction of diploic space ...

synchronous cancer is referred to two or more histological distinct malignancies diagnosed during the same hospital admission. globally more than 1 million people get colorectal cancer yearly resulting in about 0.5 million deaths. vulvar cancer is the fourth most common gynecologic cancer (following the corpus uterine cancer, cancer of ovary and cervix) and comprises only 4 percent of malignanc...

This retrospective survey was undertaken between 2002 and 2007 on samples from dogs residing in Grenada. The objectives of the study were to identify the most common histologic types of canine cutaneous tumors, determine the relative frequency of each tumor type, and compare results to reports from other regions. In a series of 225 skin masses examined, the proportion of neoplasms was 72% where...

The fibrous tumors of the pleura are rare primary tumors, accounting for 5% of malignant pleural neoplasms, which generally originate from sub-mesothelial mesenchymal tissue of the visceral pleura. These tumours generally exhibit clinical benign behavior although 12% of solitary fibrous tumors can be malignant and have worse outcomes. These tumors are considered "giant" when the lesion > 15 cm....

BACKGROUND The aims of the present study were: to assess standard ultrasound and color-Doppler patterns for the study and characterization of salivary gland tumors; to define the improvement in the color-Doppler ultrasound image after injection of a signal amplifier (Levovist); to compare morphological and vascular aspects of the neoplasm with data obtained during postoperative histopathologica...

There is a broad spectrum of primary pelvic retroperitoneal masses in adults that demonstrate characteristic epidemiologic and histopathologic features and natural histories. These masses may be classified into five distinct subgroups using a pattern-based approach that takes anatomic distribution and certain imaging characteristics into account, allowing greater accuracy in their detection and...