Primary Cutaneous Plasmacytosis with Calcinosis: A Rare Case Report

Abstract

Primary cutaneous plasmacytosis is a rare disorder. Cases have been mostly reported from Japan. Here, a rare case of cutaneous plasmacytosis with calcium deposits was reported from southern part of India. A 47-year-old male patient presented with solitary asymptomatic nodule on the left leg present for two decades. Skin biopsy showed sheets of plasma cells in mid-dermis with bony trabeculae extending upto subcutis which was unremarkable. Serum electrophoresis did not reveal any M band and Bence Jones protein was absent in urine. Radiograph of the left leg showed focal lesion with calcific areas in soft tissue shadow with probability of calcification. Novelty of the case lies in its rare clinical presentation in this population with histopathological documentation.