1. Ultrasonographic findings and diagnosis of omental dedifferentiated liposarcoma: a case report
- Author
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Katsuhisa Toda, Kentaro Otsuji, Tatsuhiko Miyazaki, Naoki Katsumura, Masashi Aiba, Noriaki Nakamura, Takao Miwa, Masahito Shimizu, and Takahiro Kochi
- Subjects
medicine.medical_specialty ,Liposarcoma ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,medicine ,case report ,030212 general & internal medicine ,Pathological ,neoplasms ,030222 orthopedics ,medicine.diagnostic_test ,business.industry ,dedifferentiated ,Soft tissue sarcoma ,omental ,Soft tissue ,ultrasonography ,medicine.disease ,body regions ,medicine.anatomical_structure ,liposarcoma ,Abdominal ultrasonography ,Abdomen ,Radiology ,Ultrasonography ,medicine.symptom ,business - Abstract
Liposarcoma is one of the most common types of soft tissue sarcomas and can develop at any site, although omental liposarcoma is extremely rare. Omental liposarcoma has a poor prognosis because the diagnosis is difficult, until it presents as a large tumor causing severe noticeable clinical symptoms. A 51-year-old male with lower abdominal pain was referred to our clinic. Abdominal ultrasonography revealed an ill-defined, solid, heterogeneous, and hypoechoic tumor deep in the lower abdomen. Generally, liposarcomas are hyperechoic, though 20% of liposarcomas present as hypoechoic tumors. This variation might occur depending on the pathological classification. We should consider the possibility of a dedifferentiated component if ultrasonography reveals typical features of soft tissue sarcoma with hypoechoic lesion.
- Published
- 2020