[Histological case report: localized cutaneous calcinosis (author's transl)]

The localized calcinosis of the skin is an extremely rare affection, which clinically appears as a verrucous nodule. The most common locations are the face and the extremities. Histologically the calcified material is located in the subepidermal upper dermis. The epidermis is thickened with acanthosis and hyperorthokeratosis. The calcified material occurs in irregular granules and in large masses. In the Haematoxylin-Eosin-preparation its staining properties vary considerably.