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Cutaneous malignant lymphoma in an infant
Y Umebayashi1, H Nameki, Y Saito
1Department of Dermatology, Hitachi General Hospital, Ibaraki, Japan.
The Journal of Dermatology
|December 1, 1990
Summary
This study details a rare infant cutaneous malignant lymphoma case, exclusively affecting the skin. Findings suggest a B-cell origin, contributing to understanding pediatric lymphomas.
Area of Science:
- Pediatric Oncology
- Dermatopathology
- Immunophenotyping
Background:
- Cutaneous malignant lymphoma (CML) is rare in infants.
- Early diagnosis and characterization are crucial for treatment.
- Understanding the cellular origin aids in therapeutic strategies.
Observation:
- A 7-month-old infant presented with CML as the sole apparent organ involvement.
- Skin biopsy revealed neoplastic lymphoid infiltrate.
- No other organ systems were clinically or pathologically affected.
Findings:
- Immunophenotypic analysis showed the infiltrate was positive for B4 (CD19), J5 (CD10), and cytoplasmic mu chain, and lambda chain.
- The neoplastic cells were negative for B1 (CD20).
- These markers indicate a B-cell lineage.
Implications:
- The case highlights a distinct B-cell CML presentation in infancy.
- This finding contributes to the limited literature on infant lymphomas.
- Further research into infant-specific lymphoma subtypes is warranted.