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Multiple Myeloma of Testes and Spermatic Cord on 18F-FDG PET/CT

Velaga, Jyothirmayi, FRCR*; Liang, Huang Hian, MRCP; Gopalakrishnan, Sathish Kumar, FRCPath

doi: 10.1097/RLU.0000000000002462
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Extramedullary multiple myeloma (EM) has negative prognostic implications on the overall survival as well as progression-free survival. Testis is a rare site of EM, which can be a part of diffuse involvement in multiple myeloma or a site of recurrence in patients with remission. We present a case of EM of testes and left spermatic cord in an 80-year-old man who presented with painless progressive enlargement of the scrotum. 18F-FDG PET/CT revealed tracer avidity of both testes and left spermatic cord. Bilateral radical orchidectomy was subsequently performed, and the diagnosis of multiple myeloma was confirmed on histopathology.

From the Departments of *Diagnostic Radiology, and

Nuclear Medicine, Singapore General Hospital, Singapore; and

Health Science North, Subbury, Ontario, Canada.

Received for publication August 15, 2018; revision accepted December 2, 2018.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Jyothirmayi Velaga, FRCR, Department of Diagnostic Radiology, Singapore General Hospital, 1 Hospital Dr, Singapore 169608. E-mail: vjyotirmayi@gmail.com.

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