Dear Editor, The group of perivascular epithelioid cell tumours (PEComas; a family of rare mesenchymal neoplasms arising at different visceral and soft tissue sites) has a wide spectrum of morphology. We present a case with a very unusual feature: wide bone metaplasia.The patient was a 63-year-old hypertensive woman complaining from left flank pain and cystitis. Laboratory data were normal, except E. coli in urine. Results of an abdominal simple X-ray showed a 4-cm calcified round tumour at the upper left renal pole, very evident with the computed tomography (CT) scan (Fig.

SummaryThis article presents the case of a 62-year-old man with treated Hodgkin’s disease who had internal mammary lymph nodes relapse after a complete initial response. These masses were gallium avid. These findings were explained by histologically documented Hodgkin’s relapse, the first such case reported in that localization without chest wall involvement. The literature on mediastinal Hodgkin’s disease and diagnostic procedures are reviewed.

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