Thallium-201 single photon emission computed tomography in the evaluation of thymic carcinoma.
Thymic carcinoma is a rare mediastinal tumor that is distinguished from malignant thymoma without cytologic atypia. We present two cases of thymic carcinoma with high uptake of Tl-201. Absence of Tl-201 uptake in a residual mass on the CT scan indicated a lack of tumor viability after the completion of therapy, which was verified by sequential needle biopsy. Tl-201 SPECT seems to be useful both in detecting thymic carcinoma and in assessing the therapeutic effect.
Kageyama
M
M
Department of Radiology, Toyama Medical and Pharmaceutical University, Japan.
Seto
H
H
Shimizu
M
M
Nagayoshi
T
T
Watanabe
N
N
Kamei
T
T
Kakishita
M
M
D000368:Aged; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy; D008875:Middle Aged; D012074:Remission Induction; D013794:Thallium Radioisotopes; D013945:Thymoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D015899:Tomography, Emission-Computed, Single-Photon
D013794:Thallium Radioisotopes