Pathology
Images
Atlas of dermatopathology
Josef Feit, Hana Jedličková, Günter Burg, Luděk Matyska, Spasoje Radovanovic et al.
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+ Introduction
+ Literature
+ Support
+ Skin biopsy
+ Non-tumorous skin diseases
+ Skin tumors
+ Cysts of the skin and subcutis
+ Soft tissue lesions
+ Some lesions of the oral cavity
+ Dermatovenerology
+ Collection of histological slides by prof. Günter Burg
+ Collection of histological slides by prof. Werner Kempf
+ Collection of histological slides of dr. Ram Chandra Adhikari
Clavus
Clinical signs
  • hyperkeratotic lesion caused by chronic pressure at the sites of bony prominences
Histology

Prominent hyperkeratosis with parakeratosis, epidermis is centrally atrophic, on the periphery acanthotic.

Pictures

Calcifying cartilaginous exostosis with reactive epidermal changes: Calcifying exostosis, HE 20x (4791)

Calcifying cartilaginous exostosis with ulceration and reactive epidermal changes: Cartilaginous exostosis, HE 40x (5385)

Cartilaginous exostosis with ulceration: Ulcerating exostosis, HE 40x (6206)

Subungual exostosis: Subungual exostosis, HE 20x (5004)