Abstract
A 55 year-old female had swelling of lymph nodes in cervical, axillary, and inguinal regions detected by comprehensive medical checkups in October 2004 and was suspected of having malignant lymphoma at a clinic. In November, an FDG-PET examination showed abnormal uptake in the mediastinum, intrathoracic, spleen and parotic regions, in addition to the above-mentioned lymph nodes. Sensing the possibility of sarcoidosis, she was referred to our hospital. A biopsy of inguinal lymph nodes revealed non-caseating epitheloid cell granulomas compatible with sarcoidosis. Skin biopsy and TBLB also showed similar pathological findings.
Recent studies have disclosed the efficacy of FDG-PET examination of lymph node enlargement in differentiating cancer metastasis of malignant lymphoma from sarcoidosis. We report a case of lymph node enlargement suspected of being sarcoidosis found by an FDG-PET examination.
