FDG PET/CT in a Case of Esophageal Extranodal NK/T-Cell Lymphoma, Nasal Type

Abstract

Lymphoma involving the esophagus is rare. We describe FDG PET/CT findings in a case of extranodal NK/T-cell lymphoma, nasal type involving the larynx, hypopharynx, and cervical and upper thoracic esophagus. The esophageal tumor showed segmentally increased FDG uptake mimicking esophagitis. This case indicates that esophageal lymphoma should be included in the differential diagnosis of the hypermetabolic esophageal diseases.

Giant Fibrovascular Polyp Mimicking Esophageal Malignancy on 18F-FDG PET/CT

“…In a previous report, an FVP with concurrent liposarcoma had an SUV max of 4.7 6 . Increased FDG uptake in the esophagus has been reported in various conditions: esophageal cancer, lymphoma, and superficialis esophagitis dessicans 7,8 . This case emphasizes the need for special attention during the endoscopic diagnosis of patients suspected to have FVP.…”

“…6 Increased FDG uptake in the esophagus has been reported in various conditions: esophageal cancer, lymphoma, and superficialis esophagitis dessicans. 7,8 This case emphasizes the need for special attention during the endoscopic diagnosis of patients suspected to have FVP. Furthermore, if a pedunculated mass exhibits high FDG uptake, the possibility of concomitant inflammation should be considered in addition to malignancy.…”

Drinking Large Volume of Hot Water May Cause Increased 18F-FDG Uptake in Esophagus

“…It is likely that the water significantly higher than normal temperature caused esophageal hyperemia, which leads to elevated FDG uptake of the esophagus. Various etiologies have also been well described in increased esophageal FDG uptake, including adenocarcinoma, 6 squamous carcinoma, 7 small cell carcinoma, 8 lymphoma, 9 reflux esophagitis, 10 fungal infection, 11,12 and esophagitis dissecans superficialis. 13 Our result indicates that drinking hot water before the PET/CT scan should be avoided in order to reduce diagnostic difficulty in the interpretation of increased esophageal FDG activity.…”