Malignant solitary fibrous tumor of the liver: a case report

Solitary fibrous tumor (SFT) is a rare mesenchymal tumor. Due to the rarity of malignant solitary fibrous tumor of the liver, information regarding the disease is currently limited. We present herein a case of malignant liver SFT in a 17-year-old female, who was misdiagnosed with hepatoblastoma preoperatively.

A 17-year-old female who was diagnosed with hepatoblastoma preoperatively The patient presented with pain in the upper abdomen and an abdominal mass. Tumor markers were normal and imaging findings were atypical. The tumor was successfully removed by surgery. Postoperative pathological examination and immunohistochemistry confirmed malignant solitary fibrous tumor. The patient recovered uneventfully and is disease-free without recurrence at the time of this report (14 months post-surgery).

SFT originates in the liver and is a rare tumor. Differential diagnosis should be considered for liver lesions with atypical imaging findings. More data are needed to understand the disease's long-term outcome and identify clinical and radiologic features that can be useful for its diagnosis. The best choice for treatment is complete surgical resection, and definitive diagnosis based on histologic and immunohistochemical characteristics. Tumor biology is unclear, and long-term follow-up of SFT patients is critical.