Hepatic Inflammatory Pseudotumor—A Diagnostic Challenge: A Case Report and Review of LiteratureFunding None.
Received: 19 September 2018
Accepted: 12 October 2018
24 June 2019 (online)
Inflammatory pseudotumor (IPT) is a rare lesion of unknown origin, characterized by proliferation of fibrous connective tissue and invasion of inflammatory cells. Although benign, it has the propensity to mimic malignant masses given its nonspecific symptoms and imaging manifestations. We present a case of hepatic IPT with variable interpretation on different imaging modalities, called as abscess on computed tomography (CT) and neoplasm on ultrasound and magnetic resonance imaging (MRI), thus posing a diagnostic dilemma. Hence it is important to recognize this as a distinct clinical entity and include it in the differential of liver masses with atypical imaging findings.
- 1 Narla LD, Newman B, Spottswood S, Narla S, Kolli R. Inflammatory pseudotumor. Radiographics 2003; 23 (03) 719-729
- 2 Kawaguchi T, Mochizuki K, Kizu T. et al. Inflammatory pseudotumor of the liver and spleen diagnosed by percutaneous needle biopsy. World J Gastroenterol 2012; 18 (01) 90-95
- 3 Kim KA, Kim KW, Park SH. et al. Unusual mesenchymal liver tumors in adults: radiologic-pathologic correlation. AJR Am J Roentgenol 2006; 187 (05) W481-9
- 4 Nam KJ, Kang HK, Lim JH. Inflammatory pseudotumor of the liver: CT and sonographic findings. AJR A m J Roentgenol 1996; 167 (02) 485-487
- 5 Yamaguchi J, Sakamoto Y, Sano T, Shimada K, Kosuge T. Spontaneous regression of inflammatory pseudotumor of the liver: report of three cases. Surg Today 2007; 37 (06) 525-529
- 6 Caramella T, Novellas S, Fournol M, Saint-Paul MC, Bruneton JN, Chevallier P. [Imaging of inflammatory pseudotumors of the liver] [in French]. J Radiol 2007; 88 (06) 882-888
- 7 Zhang X, Tang S, Huang L, Yu H. Contrast-enhanced sonographic characteristics of hepatic inflammatory pseudotumors. J Ultrasound Med 2016; 35 (09) 2039-2047
- 8 Yang X, Zhu J, Biskup E, Cai F, Li A. Inflammatory pseudotumors of the liver: experience of 114 cases. Tumour Biol 2015; 36 (07) 5143-5148
- 9 Tsou YK, Lin CJ, Liu NJ, Lin CC, Lin CH, Lin SM. Inflammatory pseudotumor of the liver: report of eight cases, including three unusual cases, and a literature review. J Gastroenterol Hepatol 2007; 22 (12) 2143-2147
- 10 Pecorella I, Ciardi A, Memeo L. et al. Inflammatory pseudotumour of the liver—evidence for malignant transformation. Pathol Res Pract 1999; 195 (02) 115-120