Acral arteriovenous tumor (cirsoid aneurysm): clinical and histopathological analysis of 6 cases.

Aim: The aim of this study is to have a further insight into this vascular tumor both clinically and histopathologically.

Methods: We examined 6 cases of acral arteriovenous tumor. Histochemically Masson trichrom, elastic van Gieson and immunohistochemically Desmin, Factor VIII, S100 and Mast cell tryptase were applied to the paraffin sections to evaluate the content of the vessels and mast cell distribution within the lesion.

Effects of acitretin on spermatogenesis of rats.

In this experimental study the possible effects of the acitretin on the spermatogenesis of the rats were investigated histopathologically. Thirty-nine male adult Wistar albino rats were divided into 3 groups as two experimental groups and one control group. The first group consisting 14 rats were applied orally standard dose (0.

Cytokeratin contents of basal cell carcinoma, epidermis overlying tumour, and associated stromal amyloidosis: an immunohistochemical study.

Cytokeratins (CKs) are expressed specifically in the cytoplasm of epithelial cells. We investigated the expression of CKs immunohistochemically in basal cell carcinomas (BCCs), epidermis overlying tumour, and skin tumor-associated amyloidosis (STA). Twenty cases of BCC, 11 of which had STA were included to the study.

Heat shock proteins 60 and 70 expression of cutaneous lichen planus: comparison with normal skin and psoriasis vulgaris.

Background: Heat shock proteins (HSPs) are expressed by most living cells and play fundamental roles in many biological processes. Their synthesis increases by a variety of stresses in order to enable cellular survival. Although it is known that they play an important role in immune and inflammatory responses of the skin, the role of HSPs in the pathogenesis of skin diseases has been studied in only limited skin diseases.