title: Inflammatory Myofibroblastic Tumor of Liver Masquerading as Focal Nodular Hyperplasia in a Patient with Non-Cirrhotic Portal Hypertension and Biliary Pancreatitis.
abstract: Inflammatory myofibroblastic tumor (IMT) is a rare lesion of undetermined pathogenesis characterized by proliferation of spindled myofibroblast cells in a collagenized inflammatory background. It is usually benign but may show local infiltration or, in rare cases, metastasis. IMT has been observed in almost all solid organs; however, involvement of liver is exceptional. Its symptoms and radiological findings can mimic malignancy and pose diagnostic difficulties. The authors report the case of a 43-year-old woman with non-cirrhotic portal hypertension and gall stone induced acute pancreatitis having a mass in the right lobe of the liver which was initially diagnosed as focal nodular hyperplasia on imaging but proved to be inflammatory myofibroblastic tumor on pathological and immunohistochemical examination. The lesion resolved with conservative management without the need for surgical intervention.
authors.affiliation: Department of Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, Off Abdul Gaffar Khan Marg, New Delhi, 110070 India.
authors.forename: Vivek
authors.initials: V
authors.lastname: Kasana
authors.affiliation: Department of Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, Off Abdul Gaffar Khan Marg, New Delhi, 110070 India.
authors.forename: S
authors.initials: S
authors.lastname: Rajesh
authors.affiliation: Department of Radiology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, Off Abdul Gaffar Khan Marg, New Delhi, 110070 India.
authors.forename: Udit
authors.initials: U
authors.lastname: Chauhan
authors.affiliation: Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, 110070 India.
authors.forename: Chhagan
authors.initials: C
authors.lastname: Bihari
authors.affiliation: Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, 110070 India.
authors.forename: Ashok
authors.initials: A
authors.lastname: Choudhury
authors.affiliation: Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, 110070 India.
authors.forename: Shiv K
authors.initials: SK
authors.lastname: Sarin
keywords: Biliary pancreatitis; Focal nodular hyperplasia; Inflammatory myofibroblastic tumor; Non-cirrhotic portal hypertension