{Reference Type}: Case Reports
{Title}: Hepatic Inflammatory Pseudotumor Mimicking Malignant Tumor With Rare Onset of Intra-abdominal Hemorrhage.
{Author}: Yamamura K;Beppu T;Oda E;Sato N;Yuki H;Motohara T;Miyamoto H;Miyamura S;Onishi K;Komohara Y;Akahoshi S;
{Journal}: Anticancer Res
{Volume}: 41
{Issue}: 5
{Year}: May 2021
{Factor}: 2.435
{DOI}: 10.21873/anticanres.15054
{Abstract}: <B>BACKGROUND: </B>Hepatic inflammatory pseudotumor (HIPT) is an uncommon benign tumor-like mass that mimics malignant tumors.<BR><B>METHODS: </B>A 73-year-old man was admitted with severe epigastric pain and high fever. He had received choledocojejunostomy. Enhanced computed tomography showed a 76 mm, heterogeneous, gradual enhanced low-density mass in the caudate lobe and hyperdense fluid was detected around the mass. Based on the diagnosis of hemorrhage from a hypervascular malignant liver tumor, chemoembolization was conducted. Antibiotics (Meropenem) were administered for 2 weeks, and methylprednisolone (125 mg) was administered twice as a premedication for chemoembolization. After the 2nd chemoembolization, rapid tumor shrinkage was observed and the inflammatory changes gradually disappeared. The tumor was finally diagnosed as fibrohistiocytic type HIPT with an ultrasound-guided percutaneous tumor biopsy. The diameter of the liver tumor decreased to 15 mm and intra-abdominal hemorrhage disappeared in 3 months.<BR><B>CONCLUSIONS: </B>Development of HIPT can be associated with intra-abdominal hemorrhage.