Cutaneous presentation of post‐renal transplant lymphoproliferative disorder: a series of four cases
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We report detailed histological and molecular characteristics of four post transplant lymphoproliferative disorders (PTLD) presenting in the skin of renal transplant patients, and their clinical outcome.Three had B‐cell lymphomas (cases 1–3), and one had a T‐cell lymphoma (case 4). All B‐cell lymphomas showed Epstein‐Barr virus (EBV) by immunohistochemistry (IHC) or in situ hybridization (ISH). Cases 1 and 2 were large cell lymphomas, and case 3 a plasmacytoma. Case 1 showed light chain restriction and heavy chain gene rearrangement by polymerase chain reaction (PCR). The patient was then diagnosed with an abdominal lymphoma and died of sepsis. Case 2 had no recoverable DNA. Case 3 had a plasmacytoma that showed monoclonal light chain restriction on IHC and an oligoclonal heavy chain rearrangement by PCR. In cases 2 and 3, the lesions regressed following reduction of immunosuppression, and died 1.5 and 8 years later from unrelated medical causes. Case 4 was a CD 30+ anaplastic large T‐cell lymphoma with no EBV detected by IHC, ISH and PCR, and died of heart failure 2 years later.Cutaneous manifestations of PTLD are rare, show wide array of clinical and pathological features, and generally have a favorable prognosis. EBV appears to be associated only with B‐cell cutaneous lymphomasSalama S, Todd S, Cina DP and Margetts P. Cutaneous presentation of post‐renal transplant lymphoproliferative disorder: a series of four cases.
