Unusual thromboses associated with protein S deficiency in patients with acquired immunodeficiency syndrome: case reports and review of the literature.

Recent reports indicate that patients infected with HIV are at increased risk for the development of thrombosis. Among other possibilities, an acquired deficiency of protein S (PS), one of the plasma's natural anticoagulants, might explain this tendency. PS deficiency can be classified in three types depending on the levels of total and free protein (antigenic assays) as well as anticoagulant activity (functional assay).

Digital image acquisition using a consumer-type digital camera in the anatomic pathology setting.

Imaging is central to anatomic pathology. The captured images are used for documentation, archiving, teaching, and publication. The advent of low-cost, consumer-type, high-end digital cameras has provided a convenient, easy-to-use alternative for routine image acquisition.

An unusual dematiaceous fungal infection of the skin caused by Fonsecaea pedrosoi: a case report and review of the literature.

Background: A case of an unusual dematiaceous fungal infection of the skin in a 43-year-old man with diabetes mellitus treated with steroids for reactive airway disease is presented. He developed chromoblastomycosis in the left wrist and was treated with antifungals and multiple surgical excisions.

Results: Histologic examination of the excised tissue revealed widespread suppurative granulomatous inflammation in the dermis and subcutaneous tissue.