liposarcoma


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Related to liposarcoma: lipoma

liposarcoma

 [lip″o-sahr-ko´mah]
a malignant tumor characterized by large anaplastic lipoblasts, sometimes with foci of normal fat cells.

lip·o·sar·co·ma

(lip'ō-sar-kō'mă),
A malignant neoplasm of adults that occurs especially in the retroperitoneal tissues and the thigh, usually deep in the intermuscular or periarticular planes; histologically, liposarcoma is a large tumor that may be composed of well-differentiated fat cells or may be dedifferentiated, either myxoid, round-celled, or pleomorphic, usually in association with a rich network of capillaries; recurrences are common, and dedifferentiated liposarcoma metastasizes to the lungs or serosal surfaces.
[lipo- + sarx, flesh, + -oma, tumor]

lip·o·sar·co·ma

(lip'ō-sahr-kō'mă)
A malignant neoplasm of adults that occurs especially in the retroperitoneal tissues and the thigh; planes composed of well-differentiated fat cells, or may be dedifferentiated, either myxoid, round celled, or pleomorphic; recurrences are common, and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces.
Synonym(s): lipoblastoma (1) .
[lipo- + sarx, flesh, + -oma, tumor]

liposarcoma

A very rare malignant tumour of fatty tissue. Liposarcomas usually occur in the fat on the inside of the back wall of the abdomen or in the MEDIASTINUM of elderly people.
References in periodicals archive ?
Dedifferentiated liposarcoma that resembles desmoid-type fibromatosis tends to be hypocellular and consist of bland spindle cells streaming through collagenous stroma.
In a study done by Tirumani et al the lung was the most common site of metastases of dedifferentiated liposarcoma, with high tumor grade and local recurrence the greatest predictors of metastasis.
Although imaging may aid diagnosis, lipomas may share characteristics with liposarcomas (18).
Liposarcoma of the head and neck: The University of Texas M.D.
Primary Liposarcoma of pericardium is extremely rare.
Well- differentiated liposarcoma. The Mayo Clinic experience with 58 cases.
Eward et al., "Can experienced observers differentiate between lipoma and well-differentiated liposarcoma using only MRI?," Sarcoma, vol.
Conrad, "Risk assessment in liposarcoma patients based on FDG PET imaging," European Journal of Nuclear Medicine and Molecular Imaging, vol.
The most common soft tissue sarcoma subtypes in adults include undifferentiated/unclassified soft tissue sarcoma, undifferentiated pleomorphic sarcoma, liposarcoma, leiomyosarcoma, and gastrointestinal stromal tumors (GIST).
Histologically, liposarcoma is classified into four subtypes: well-differentiated, dedifferentiated, myxoid/round, and pleomorphic [6].
A liposarcoma can be distinguished from a lipoma by its display of heterogenous echotexture, large size or greater than minimal colour Doppler flow [5].