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Cutaneous infiltration with Waldenström macroglobulinemia
1First Department of Intenal Medicine, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka 569-8686, Japan. in1161@poh.osaka-med.ac.jp
Leukemia Research
|March 15, 2006
Summary
Waldenström macroglobulinemia can manifest in the skin, presenting as itchy rashes. Skin biopsies confirmed abnormal cell infiltration and immunoglobulin gene rearrangement, proving cutaneous involvement in this rare blood cancer.
Area of Science:
- Hematology
- Dermatology
- Oncology
Background:
- Waldenström macroglobulinemia is a rare lymphoproliferative disorder characterized by malignant B cells producing monoclonal IgM.
- Cutaneous manifestations are uncommon but can occur in Waldenström macroglobulinemia.
Observation:
- A 59-year-old Japanese male patient presented with a 2-year history of pruritic skin eruptions.
- The eruptions initially affected the forearms and subsequently spread to the face, limbs, and trunk, accompanied by impaired general performance.
Findings:
- A skin biopsy from the forehead revealed dermal infiltration by abnormal cells around central vessels.
- Polymerase Chain Reaction (PCR) analysis of the skin biopsy demonstrated immunoglobulin heavy chain gene rearrangement.
- The PCR findings in the skin biopsy matched those from bone marrow aspiration, confirming cutaneous infiltration by neoplastic cells.
Implications:
- This case highlights the importance of considering cutaneous involvement in Waldenström macroglobulinemia.
- Skin biopsy and molecular analysis (PCR) are valuable tools for diagnosing extramedullary disease in Waldenström macroglobulinemia.
- Understanding skin manifestations can aid in earlier diagnosis and management of Waldenström macroglobulinemia.