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Annals of Nuclear Medicine

, Volume 13, Issue 4, pp 273–276 | Cite as

Thallium and FDG uptake by atelectasis with bronchogenic carcinoma

  • Joji Kawabe
  • Terue Okamura
  • Miyuki Shakudo
  • Koichi Koyama
  • Hideki Wanibuchi
  • Yoshihiro Shimonishi
  • Hironobu Ochi
  • Ryusaku Yamada
Case Report

Abstract

We report a case of bronchogenic carcinoma with atelectasis studied by Tl-SPECT and FDG-PET. In the carcinoma, abnormally high uptake of Tl and FDG were detected, but in the region of atelectasis, an abnormally high uptake of Tl with a relatively low uptake of FDG were observed. On quantitative analyses, the Tl retention indexes of the tumor and atelectasis were 29.7 and 42.0. The mean SUVs of FDG of the tumor and the atelectasis were 8.92 and 1.28. Tl-SPECT could not distinguish the atelectasis from the carcinoma. FDG-PET was superior to Tl-SPECT in this case in detecting malignancy and distinguishing it from atelectasis.

Key words

atelectasis bronchogenic carcinoma fluorine-18-fluorodeoxyglucose (FDG) thallium-201-chloride (Tl) retention index (RI) 

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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • Joji Kawabe
    • 1
  • Terue Okamura
    • 2
  • Miyuki Shakudo
    • 2
  • Koichi Koyama
    • 2
  • Hideki Wanibuchi
    • 3
  • Yoshihiro Shimonishi
    • 2
  • Hironobu Ochi
    • 1
  • Ryusaku Yamada
    • 2
  1. 1.Division of Nuclear MedicineOsaka City UniversityOsakaJapan
  2. 2.Department of RadiologyOsaka City University Medical SchoolJapan
  3. 3.First Department of PathologyOsaka City University Medical SchoolJapan

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