Angiosarcoma of the nasal septum mimicking reticulohistiocytoma.

Angiosarcomas are rare, aggressive tumors of endothelial cells with a high degree of invasiveness and poor survival. Although they arise in the face and scalp of elderly people, the nose represents a rare location with few reports in the literature. Nasal angiosarcoma resembling benign lesion morphologically has been described, but there is no report of angiosarcoma mimicking benign lesion histologically.

Mucoepidermoid carcinoma of the salivary glands. Review of the literature and clinicopathological analysis of 18 patients.

Salivary gland carcinomas are a rare and clinically diverse group of neoplasms among which mucoepidermoid carcinomas (MEC) are reported to be the most frequently encountered. During the years 1994-2004 18 patients with MEC were treated in our Department. All patients underwent surgery with a curative intent, and in 11 of them treatment was supplemented by radiotherapy.

Leiomyosarcomas of the oral tissues: clinicopathologic analysis of 50 cases.

Purpose: Primary oral leiomyosarcomas are rare tumors. Information regarding the biological behavior, prognosis, and appropriate management of this neoplasm is lacking in the literature. The purpose of this report was to summarize the data of isolated case reports of primary oral leiomyosarcoma that have been published in the English literature during the past 25 years.

Tumors of the submandibular gland: clinicopathologic analysis of 23 patients.

Purpose: Tumors of the submandibular gland are rare, comprising less than 2% of head and neck neoplasia. Both benign and malignant lesions show a mild symptomatology, resulting in late presentation and in advanced stage of disease. The purpose of this article was to report our experience in treating submandibular gland neoplasia during the last 10 years.