Abstract
A 64-year-old woman, otherwise healthy, presented with multiple reddish-brown, slightly yellowish papules on the face and neck, which had developed 3 years earlier. The lesions were painless and nonpruritic and varied in diameter from 1 to 5 mm. Histological and immunohistochemical examination of cutaneous biopsies revealed a diffuse dermal infiltrate composed mainly of histiocytes which expressed both Langerhans cell as well as monocytic/macrophages cell marker characteristics. Electron microscopic studies revealed no Birbeck granules within the cytoplasm of the neoplastic cells, leading to a diagnosis of indeterminate cell histiocytosis. Indeterminate cell histiocytosis is a very rare disease characterized by the proliferation of indeterminate histiocytes which morphologically and immunophenotypically resemble Langerhans cells but lack Birbeck granules.
Lingua originale | English |
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pagine (da-a) | 276-283 |
Numero di pagine | 8 |
Rivista | American Journal of Dermatopathology |
Volume | 19 |
Stato di pubblicazione | Pubblicato - 1997 |
Keywords
- Female
- Histiocytosis
- Humans
- Middle Aged
- Skin