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Updated: Feb 26, 2026
The Influence of Liver Resection on Intrahepatic Tumor Growth
Published on: April 9, 2016
A case of multiple inflammatory hepatic pseudotumor protruding from the liver surface after colonic cancer
Toshikatsu Nitta1, Jun Kataoka1, Yoshihiro Inoue1
1Division of Surgery Gastroenterological Center, Medico Shunju Shiroyama Hospital, Osaka, Japan; Division of Surgery Osaka Medical college, Osaka, Japan; Division of Pathology Osaka Medical college, Osaka, Japan.
Introduction:
Inflammatory hepatic pseudotumor (IHPT) is an important benign liver disease because it is difficult to clinically and radiologically distinguish from malignant tumors.
Presentation Of Case:
Here, we describe a case of a 67-year-old male patient diagnosed with multiple inflammatory hepatic pseudotumors. The patient had undergone left hemicolectomy for descending colonic cancer (T3 N0 M0 stage IIA) 2 years prior. He underwent segment 6 and segment 7 partial hepatectomy because of suspected liver metastasis. The patient had an unremarkable postoperative course and was discharged 7days after surgery. Marked infiltration of inflammatory cells was observed on histological examination. The patient was finally diagnosed with IHPT of the fibrohistiocytic type.
Discussion:
Repeated imaging studies over 1 month showed the spontaneous regression of the hepatic tumors. Therefore, knowledge regarding this condition is necessary to allow for treatment, even in the absence of experience. During examination, it may be important to ascertain lesion size. Moreover, percutaneous needle biopsy and follow-up examinations are necessary for cases of suspected IHPT.
Conclusion:
Hepatectomy should be considered if the lesion is suspected to be an IHPT.
