Imaging Features of Rare Mesenychmal Liver Tumors: Beyond Hemangiomas (original) (raw)

2017, The British journal of radiology

Tumors arising from mesenchymal tissue components such as vascular, fibrous and adipose tissue can manifest in the liver. Although histopathology is often necessary for definitive diagnosis, many of these lesions exhibit characteristic imaging features. The radiologist plays an important role in suggesting the diagnosis, which can direct appropriate immunohistochemical staining at histology. The aim of this review is to present clinical and imaging findings of a spectrum of mesenchymal liver tumors such as hemangioma, epithelioid hemangioendothelioma, lipoma, PEComa, angiosarcoma, inflammatory myofibroblastic tumor, solitary fibrous tumor, leiomyoma, leiomyosarcoma, Kaposi sarcoma, mesenchymal hamartoma, undifferentiated embryonal sarcoma, rhabdomyosarcoma and hepatic metastases. Knowledge of the characteristic features of these tumors will aid in guiding the radiologic diagnosis and appropriate patient management.