Primary liver leiomyoma: a review of this unusual tumour

Primary liver leiomyoma (PLL) should be considered in the differential diagnosis of liver lesions. A literature review has been completed and two cases are reported. The first is a 45‐year‐old white woman complaining of vague abdominal pain. She was initially evaluated with abdominal ultrasonography (US) that revealed a heterogeneous liver mass measuring 18 cm in greatest diameter. The tumour demonstrated hypointensity on T1‐weighted and hyperintensity on T2‐weighted magnetic resonance imaging. The second case is a 45‐year‐old Asian male who had undergone kidney transplantation 16 years ago for IgA glomerulonephritis and who developed mild, self‐limiting epigastric pain. US showed a 4.3‐cm‐diameter lesion that was predominantly hypoechoic and was either compressing or arising from segment 2 of the liver. Computed tomography showed a well‐circumscribed 4‐cm‐diameter mass that appeared to be arising from segments 2/3 of the liver and was adjacent to the anterior gastric wall. He underwent an uneventful laparoscopic left lateral sectionectomy and discharged on post‐operative day 3. Pathological examination of the resection specimen confirmed the lesion as a PLL in each case. Herein, we report two cases of PLL and review the literature regarding this uncommon disorder.