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Comparative scanning electron microscopy of bullous diseases* * Work performed at the Laboratório de Microscopia Eletrônica - Universidade Federal de Pelotas (UFPel) – Pelotas (RS), Brasil.

The purpose of this study is to compare scanning electron microscopy findings of the blister roof in three distinct bullous diseases: one intraepidermal acantholytic (pemphigus foliaceus); one due to hemidesmosomal dysfunction (bullous pemphigoid); and one secondary to anchoring fibril dysfunction - type VII collagen (dystrophic epidermolysis bullosa). In pemphigus foliaceus, acantholytic phenomena were readily demonstrated. In bullous pemphigoid, the epidermis had a solid aspect. In dystrophic epidermolysis bullosa a net was seen in the blister roof.

Microscopy, electron, scanning; Pemphigus; Skin diseases, vesiculobullous


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