Abstract
A characteristic metabolic finding of hepatic alveolar echinococcosis (HAE) on positron emission tomography/computed tomography (PET/CT) correlates with morphologic features on CT and magnetic resonance imaging (MRI). A young man from an endemic area was admitted to our hospital due to right upper quadrant pain for 2 months. CT and MRI revealed a heterogeneous mass with calcification, consisting of central necrosis and peripheral solid inflammatory tissues. Accordingly, FDG PET/CT demonstrated a characteristic metabolic finding of doughnut sign. Combining the above characteristic imaging features with positive serologic findings, the patient was diagnosed as HAE. He then underwent extracorporeal hepatectomy and liver autotransplantation followed by medical treatment of benzimidazoles. He remained asymptomatic without evidence of recurrence at 2-year follow-up. The characteristic metabolic appearance of HAE on FDG PET/CT, correlated with its morphologic features of CT and MRI, may allow to make accurate diagnoses.
References
Jan 1, 1985·Radiology·D DidierF Weill
May 15, 1998·Hepatology : Official Journal of the American Association for the Study of Liver Diseases·S Bresson-HadniJ P Miguet
Mar 20, 2003·Emerging Infectious Diseases·Petra KernUNKNOWN European Echinococcosis Registry
May 17, 2003·Radiology·Yoshihisa KodamaKazuo Miyasaka
Oct 25, 2003·Lancet·Donald P McManusPaul B Bartley
Jan 17, 2004·Clinical Microbiology Reviews·Johannes Eckert, Peter Deplazes
Oct 16, 2004·Journal of Gastroenterology and Hepatology·Ky PolatM Kantarci
Nov 2, 2004·Acta Radiologica·A CoşkunM Güleç
Feb 14, 2007·Infection·K D M StumpeE L Renner
Oct 4, 2007·Abdominal Imaging·Benedikt V CzermakJae Hoon Lim
Nov 27, 2008·Clinical Nuclear Medicine·Hakan DemirIlhami Uslu
Nov 17, 2009·Clinical Microbiology and Infection : the Official Publication of the European Society of Clinical Microbiology and Infectious Diseases·J CrouzetS Bresson-Hadni
Mar 23, 2010·Clinical Nuclear Medicine·Venkatesh RangarajanAnshu Rajnish Sharma
May 19, 2010·Clinical Nuclear Medicine·Sandip Basu, Nawab Singh Baghel
Jun 4, 2011·Clinical Nuclear Medicine·Sabire YilmazIlhami Uslu
Nov 15, 2012·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Mecit KantarciAytekin Oto
Jan 11, 2013·Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine·Cécile CaoduroOleg Blagosklonov
Jun 28, 2014·Abdominal Imaging·Amel AziziEric Delabrousse
Apr 8, 2016·World Journal of Gastroenterology : WJG·Tilmann GraeterBeate Gruener
Apr 16, 2016·Diagnostic and Interventional Radiology : Official Journal of the Turkish Society of Radiology·Mesut BulakçıOğuz Bülent Erol