A Doughnut Sign of a Hydatid Cyst of the Liver on F-18 FDG PET/CT

A Doughnut Sign of a Hydatid Cyst of the Liver on F-18 FDG PET/CT

A 59-year-old man underwent a whole-body PET/CT scan to evaluate the metabolic activity of a nodule in the upper lobe of the left lung seen on CT. Slightly increased peripheral activity with a large hypometabolic region centrally, a so-called doughnut sign, was seen in the right lobe of the liver. A...

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Veröffentlicht in:Clinical nuclear medicine 2008-12, Vol.33 (12), p.876-877
Hauptverfasser: Demir, Hakan, Halac, Metin, Yilmaz, Selda, Isgoren, Serkan, Sonmezoglu, Kerim, Uslu, Ilhami
Format: Artikel
Sprache:eng
Schlagworte:
Echinococcosis, Hepatic - diagnostic imaging
Echinococcosis, Hepatic - pathology
Fluorodeoxyglucose F18
Humans
Male
Middle Aged
Positron-Emission Tomography
Tomography, X-Ray Computed
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Zusammenfassung:A 59-year-old man underwent a whole-body PET/CT scan to evaluate the metabolic activity of a nodule in the upper lobe of the left lung seen on CT. Slightly increased peripheral activity with a large hypometabolic region centrally, a so-called doughnut sign, was seen in the right lobe of the liver. After the diagnosis of a hydatid cyst of the liver, the patient underwent surgery. This case demonstrates a hydatid cyst that caused increased F-18 FDG uptake as a doughnut pattern.
ISSN:0363-9762
1536-0229
DOI:10.1097/RLU.0b013e31818bf2df