Korean Journal of Nuclear Medicine  1999;33(3):337-340

Accumulation of Thallium-201 in Hemorrhagic Cerebral Infarction.

Jae Gol CHOE ; Kyung Min KIM ; Ki Yeol LEE ; Yong Gu CHUNG

Keywords

Thallium-201; Single photon emission computed tomography; Brain; Cerebral infarction

Country

Republic of Korea

Language

Korean

Abstract

Thallium-201 brain SPECT is utilized in the diagnosis of brain tumor especially in cases where CT or MRI findings alone cannot differentiate malignant lesion from benign. Recently we came across two cases of positive T1-201 brain SPECT in clinically suspected brain tumor patients that turned out to be hemorrhagic cerebral infarction instead on biopsy. The findings in these cases demonstrate that thallium-201 accumulation may occur by the breakdown of the blood-brain barrier and phagocytic cell infiltration in the liquefaction stage of infarction.