RT Journal Article
SR Electronic
T1 Low grade FDG uptake on the rim of “doughnut” in PET-CT in an asymptomatic Hydatid cyst: is inflammatory activity a determinant of symptoms?
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP jnmt.115.155408
DO 10.2967/jnmt.115.155408
A1 Kumar, Nandigam S
A1 Barve, Ketaki
A1 Joshi, Jyotsna
A1 BASU, SANDIP
YR 2015
UL http://tech.snmjournals.org/content/early/2015/06/24/jnmt.115.155408.abstract
AB Herein we present an untreated asymptomatic incidentally diagnosed suspected case of pulmonary hydatid cyst with its atypically low grade 18F-FDG uptake on the peripheral rim of the cyst with minimal increase on dual point imaging of 18F-FDG- PET-CT. The patient underwent 18F-FDG-PET/CT for characterization of solitary lung lesion on chest X-ray and inconclusive ceCT features. While the diagnosis was confirmed by serum IHA positive for echinococcus granulosus, the low grade 18F-FDG uptake in the context of asymptomatic presentation of the disease is noteworthy, that could be related to minimal active inflammation. When placed in context of similar published reports, it could be hypothesized that the inflammatory 18F-FDG uptake could be an additional determinant of symptoms in this group of patients.