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Start free with EleplanPrimary cutaneous diffuse large B-cell lymphoma, leg type
ORPHA:178544Disease
Also called PCDLBCL,LT
What it is
A rare, aggressive, primary cutaneous B-cell lymphoma characterized by rapidly progressive, red to bluish, often ulcerating, nodular tumors predominantly involving the lower legs. Histology shows sheets of centroblasts and immunoblasts that spare the epidermis, but infiltrate the dermis and subcutaneous tissues, and often disseminate extracutaneously. The neoplastic cells typically express CD20, CD79a, Bcl-2, MUM-1, and FOXP1, but are negative for CD10.
Key facts
- Classified as
- Disease
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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