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[Papular acantholytic dyskeratosis]
H L de Almeida Júnior1, M Wolter, L A Castro
1Medizinische Fakultät der Bundesuniversität Pelotas, Av. Duque de Caxias 250, 96.030-002 Pelotas RS Brasilien. hiramalmeidajr@hotmail.com
Summary
Papular acantholytic dyskeratosis, a rare acquired skin condition, presents with lesions mimicking Darier disease. Successful treatment was achieved using cryotherapy.
Area of Science:
- Dermatology
- Histopathology
- Electron Microscopy
Context:
- Papular acantholytic dyskeratosis is an exceptionally rare skin disorder.
- It histologically resembles Darier disease but lacks a genetic basis.
- Lesions are acquired, presenting as papules on the skin.
Purpose:
- To describe the clinical and histological features of papular acantholytic dyskeratosis.
- To investigate the ultrastructural changes using transmission electron microscopy.
- To report a successful treatment modality for this rare condition.
Summary:
- A case study of a 40-year-old woman with approximately 200 papules on her lower legs.
- Histological examination revealed suprabasilar clefts with acantholytic and dyskeratotic cells, characteristic of papular acantholytic dyskeratosis.
- Transmission electron microscopy demonstrated reduced desmosomes and perinuclear tonofilament distribution.
Impact:
- Highlights the distinction between acquired papular acantholytic dyskeratosis and genetic Darier disease.
- Provides insights into the ultrastructural pathology of this rare skin condition.
- Demonstrates the efficacy of cryotherapy for managing papular acantholytic dyskeratosis.