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Indium-111-Labeled Leukocyte Scintigraphy in a Case of Cutaneous Sarcoidosis

Departments of Diagnostic Radiology and Dermatology, Sapporo City General Hospital
Department of Nuclear Medicine, Hokkaido University, School of Medicine, Sapporo, Hokkaido, Japan

Correspondence: For correspondence or reprints contact: Chihoko Miyazaki, MD, Department of Diagnostic Radiology, Sapporo city General Hospital, W-9, N-1, Chuo-ku, Sapporo, 060, Japan.

ABSTRACT

A 54-yr-old woman with cutaneous nodules showed accumulation of ⁶⁷Ga- and ¹¹¹In-labeled leukocytes in skin nodules, bilateral pulmonary hilar lymphnodes and the right upper mediastinum. Biopsy of the skin nodule proved epithelioid cell granuloma with moderate lymphocyte infiltration peripherally consistent with sarcoidosis. Sarcoidosis is a potential pitfall in labeled leukocyte imaging, which is performed for detecting a febrile focus.