title: Alveolar Echinococcosis of the Liver: A Diagnostic Problem in a Nonendemic Area.
abstract: Alveolar echinococcosis is a parasitic disease primarily invading the liver. Owing to its aggressive nature, it invades the adjacent structures and can even metastasize to distant organs. The appearance of hepatic involvement on computed tomographic scan is characteristic, but not specific, with areas of calcification seen within a hypoenhancing mass. Although magnetic resonance imaging may better define the extent of the disease, it often misleads the radiologist, especially if the lesion is devoid of cystic component(s) and if it occurs in nonendemic areas. Knowledge of the imaging appearance may prompt serological evaluation and aid in making an early diagnosis and planning appropriate treatment of this uncommon fatal disease, especially in nonendemic areas.
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Kumble S
authors.initials: KS
authors.lastname: Madhusudhan
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Deep N
authors.initials: DN
authors.lastname: Srivastava
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India. Electronic address: nagranjan@gmail.com.
authors.forename: Nihar R
authors.initials: NR
authors.lastname: Dash
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Arun
authors.initials: A
authors.lastname: Venuthruimilli
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Raju
authors.initials: R
authors.lastname: Sharma
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Shivanand
authors.initials: S
authors.lastname: Gamanagatti
authors.affiliation: Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: Arun K
authors.initials: AK
authors.lastname: Gupta
mesh_terms: D049448:Cholangiopancreatography, Magnetic Resonance; D003287:Contrast Media; D004443:Echinococcosis; D004444:Echinococcosis, Hepatic / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging / Q000469:parasitology* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media