Inclusion Criteria:
- Eligible patients were required to have histologically proven noncaseating
epithelioid cell granuloma and at least one disease that the possibility of
coexistent malignancy could not be excluded as follows; 1) extrapulmonary lesions
mimicking malignant diseases including systemic lymphadenopathy, hepatosplenic
involvement, or other lesions, 2) multiple nodular lesions mimicking pulmonary
metastasis, 3) the occurrence of BHL in cancer patient.
Exclusion Criteria:
- The patients that PET imaging using 18F-FDG and 18F-FMT was performed before
establishment of the final diagnosis of sarcoidosis, patients undergoing treatment
for sarcoidosis before the PET study, and patient having diabetes mellitus.