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Technetium-99m(V)Dimercaptosuccinic Acid Uptake in Intra-abdominal Massive Deposit of Amyloid Protein

Department of Radiology and Nuclear Medicine, Kyoto University, Faculty of Medicine, and Kyoto National Hospital, Kyoto
Hyogo Prefectural Amagasaki Hospital, Hyogo
Department of Nuclear Medicine, Gunma University School of Medicine, Gunma, Japan

Correspondence: For correspondence or reprints contact: Hisataka Kobayashi MD, Department of Nuclear Medicine, Kyoto University, Faculty of Medicine, 54, Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, Japan 606.

ABSTRACT

Technetium-99m(V)dimercaptosuccinic acid (DMSA) scintigraphy was performed in two patients with pathologically confirmed primary amyloidosis. Both patients had tumor-like deposits of AL-type amyloid in the abdomen. Marked uptake of the tracer by the amyloid deposits was noted. Technetium 99m-(V)DMSA scintigraphy appears to be useful in detecting the distribution of amyloid deposits and in determining the appropriate site for biopsy.