Type:
Educational Exhibit
Keywords:
Cancer, Diagnostic procedure, Ultrasound, MR, CT, Oncology, Liver, Abdomen
Authors:
N. Çiledag, H. Kaygusuz, S. Aksoy, B. S. Sahin, O. Unal; ANKARA/TR
DOI:
10.1594/ecr2018/C-2585
Background
Liposarcomas are malignant tumor of mesenchymal origin.
Liposarcomas consists of five subtypes: well differentiated,
myxoid,
round cell,
pleomorphic,
and mixed.
The incidence of metastatic disease is 29–33% for myxoid,
13% for round cell,
and 40% for mixed (1).
Although liposarcomas are the most common soft tissue tumors of the limbs and retroperitoneum,
primary liposarcomas of omentum is rare.
The most common site of spread is to the lung from extremity sarcomas and the incidence is dependent on tumor grade and size.
The myxoid subtype is the most common variant of extremity liposarcomas and has a high predilection to extrapulmonary sites of metastasis.
Hepatic metastases from liposarcomas frequently occur in cases of visceral and retroperitoneal tumors.
It is uncommon for extremity soft-tissue sarcomas to spread to the liver (< 0.5%).
CT and MRI characteristics of liver metastases of liposarcomas have not been well defined in literature,
yet.
CT and MR imaging features of hepatic metastases of liposarcoma is not well known,
and should be studied.