atypical lipoma

(redirected from pleomorphic lipoma)

a·typ·i·cal li·po·ma

lipoma, occurring primarily in older men on the posterior neck, shoulders, and back, which is benign but microscopically atypical, containing giant cells with multiple overlapping nuclei forming a circle.
Synonym(s): pleomorphic lipoma

atypical lipomatous tumour

A well-circumscribed, low-grade malignancy which arises in deep soft tissue of extremities, retroperitoneum, and groin, for which the term “well-differentiated liposarcoma” is increasingly preferred. As a general rule, the deeper the tumour, the more likely it is to recur.
Management Complete excision is curative.

a·typ·i·cal li·po·ma

(ā-tip'i-kăl li-pō'mă)
Lesion, occurring primarily in older men on the posterior neck, shoulders, and back, which is benign but microscopically atypical, containing giant cells with multiple overlapping nuclei forming a circle.
Synonym(s): pleomorphic lipoma.

a·typ·i·cal li·po·ma

(ā-tip'i-kăl li-pō'mă)
Lesion, occurring primarily in older men on the posterior neck, shoulders, and back, which is benign but microscopically atypical, containing giant cells with multiple overlapping nuclei forming a circle.
Synonym(s): pleomorphic lipoma.
References in periodicals archive ?
Histologically, spindle-cell lipoma is a distinctive type of lipoma on a continuum with pleomorphic lipoma.
At the opposite end of the spectrum, a spindle-cell tumor may feature small, spindled, and round hyperchromatic cells and multinucleated giant cells with radially arranged (floret-like) nuclei--that is, the features of a pleomorphic lipoma.
6-8) The cytologic differential diagnosis of fatty lesions includes lipoma with regressive change, angiolipoma, fibroadenoma with fat, pleomorphic lipoma, adenolipoma, and reaction to silicone implants.
These include pleomorphic lipoma, pleomorphic leiomyoma,[6] ancient schwannoma,[7] pleomorphic fibroma,[8] and variants of dermatofibroma with atypical cells, known as dermatofibroma with monster cells.