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Lymphomatoid papulosis: a localized form with acral pustular involvement
M C Deroo-Berger1, F Skowron, S Ronger
1Dermatology Unit, Hôtel-Dieu, Lyon, France.
Dermatology (Basel, Switzerland)
|July 30, 2002
Summary
We describe a rare, localized lymphomatoid papulosis (LyP) case presenting on the hands. Histopathology confirmed LyP, highlighting the need for careful diagnosis and patient monitoring.
Area of Science:
- Dermatology
- Pathology
- Oncology
Background:
- Lymphomatoid papulosis (LyP) is a rare primary cutaneous T-cell lymphoma.
- LyP typically presents with recurrent crops of papules and plaques that spontaneously resolve.
Observation:
- A unique case of localized LyP manifested as pustular papules on the hands.
- Histopathology revealed a significant infiltrate of atypical pleomorphic large lymphocytes with concerning mitotic activity and epidermotropism.
- Immunohistochemistry showed these atypical cells were CD4 and CD30 positive.
Findings:
- Despite the unusual presentation, laboratory and bone marrow examinations were negative for systemic involvement.
- Diagnosis of LyP was solely based on histopathological findings due to the atypical clinical presentation.
Implications:
- This case underscores the importance of histopathological examination for diagnosing unusual LyP presentations.
- The potential association of LyP with other neoplasms necessitates long-term patient follow-up to monitor for secondary malignancies.