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Lobar Primary Pulmonary Lymphoma: Iodine-123-Iodoamphetamine and Thallium-201-Chloride Scintigraphic Findings

Department of Radiology, Yamaguchi University School of Medicine, Ube, Japan

Correspondence: For correspondence or reprints contact: Kazuyoshi Suga, MD, Department of Radiology, Yamaguchi University School of Medicine, Kogushi 1144, Ube, Yamaguchi, Japan 755.

ABSTRACT

A case of primary pulmonary malignant lymphoma (PML) was evaluated by ¹²³I-IMP scintigraphy and ²⁰¹TICI SPECT. Radiography and CT showed a so-called lobar consolidation on the chest that was difficult to differentiate from other benign conditions. However, ¹²³I-IMP scintigraphy showed a defect corresponding to the lesion both in the early and delayed images, and ²⁰¹TICI SPECT showed a higher retention index than that of benign disorders. Both results were highly suggestive of malignancy. These scintigraphies can help differentiate PML from benign lesions and other malignant pulmonary tumors.