Yolcu, AAydogdu, I2025-04-102025-04-100028-4793http://hdl.handle.net/20.500.14701/35277A 72-year-old man was referred to the hematology service for management of multiple myeloma. A bone marrow biopsy confirmed 70% involvement of plasma cells, with some cells showing morphologic features of signet-ring cells.EnglishEditorial Material1533-4406