Fig. 1.

a. Multiple well-defined skin coloured nodules over the distal interphalangeal joints of right middle and index finger and left ring and index fingers in a “string of pearl” like arrangement. b. Skin biopsy showing presence of numerous multinucleate giant cells with eosinophilic finely granular cytoplasm with a characteristic “ground glass” appearance along with histiocytes, plasma cells and lymphocytes (H&E stain, 400x). These giant cells were positive for CD 68, CD 45 and vimentin, respectively (Fig. 1c–e, 200x). CD1a was negative (Fig. 1f and 200x).