Focal and diffuse FDG uptake patterns of endotracheal lymphoma.
Endotracheal infiltration by lymphoma is uncommon. We present 2 cases of endotracheal infiltration by non-Hodgkin lymphoma. One case had a solitary lesion in the middle trachea. Bronchoscopic biopsy of the lesion revealed diffuse large B-cell lymphoma. The tumor showed focal FDG uptake with SUVmax of 15. The other case had diffuse endotracheal lesions. Bronchoscopic biopsy revealed diffuse submucosal infiltration by natural killer/T-cell lymphoma. The thickened trachea showed diffuse FDG uptake with SUVmax of 8.4. These 2 cases indicate lymphoma should be included in the differential diagnosis of focal or diffuse endotracheal FDG accumulation.
From the Departments of *Nuclear Medicine, †Thoracic Surgery, and ‡Pathology, Changhai Hospital, Second Military Medical University, Shanghai, China.
Aisheng
A
Dong
Tiejun
T
Zhao
Yang
Y
Wang
Changjing
C
Zuo
D000328:Adult; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D017254:Leukemic Infiltration / Q000000981:diagnostic imaging* / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014132:Trachea / Q000000981:diagnostic imaging* / Q000473:pathology
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18