title: FDG PET/CT findings of a ruptured pulmonary hydatid cyst with histopathological correlation.
abstract: We present a case of ruptured pulmonary hydatid cyst in a patient with hemoptysis and suspected pulmonary malignancy, for which the (18)F-fluorodeoxyglucose positron emission tomography (PET)/computed tomography (CT) findings of absent metabolic activity within the cyst and hypermetabolism within a pericystic region of parenchymal consolidation were clues to the diagnosis. Our report is the first to correlate PET/CT findings in a ruptured cyst with histopathology. Moreover, this case demonstrates that even in nonendemic regions, ruptured pulmonary hydatid cyst should be considered in the differential for pulmonary malignancy. The ability of PET/CT to distinguish cyst rupture has implications for surgical management.
authors: UMDNJ-New Jersey Medical School, 185 South Orange Ave., Newark, NJ 07103, USA. yangclily@gmail.com
authors: Lily
authors: L
authors: Yang
authors: Pierre D
authors: PD
authors: Maldjian
authors: Stephen
authors: S
authors: Peters
mesh_terms: D004445:Echinococcosis, Pulmonary / Q000175:diagnosis* / Q000473:pathology*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D019788:Fluorodeoxyglucose F18