Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Histologic Type > Neoplasms, Connective and Soft Tissue > Neoplasms, Adipose Tissue Terms and Definitions

Neoplasms, Adipose Tissue

Medical Definition:	Neoplasms composed of fatty tissue or connective tissue made up of fat cells in a meshwork of areolar tissue. The concept does not refer to neoplasms located in adipose tissue.
Guide Notes:	neoplasms composed of adipose or soft tissue, NOT neoplasms located in adipose or soft tissue: TN 135; /blood supply /chem /second /secret /ultrastruct permitted; coord IM with precoord organ/neopl term (IM); restricted use: Manual 24.2.2.5; DF: NEOPL ADI
Previously Indexed:	Adipose Tissue (1967-1993),Soft Tissue Neoplasms (1978-1993)

Neoplasms, Adipose Tissue Categories.

	Angiolipoma - A benign neoplasm composed of a mixture of adipose tissue and blood vessels. (Dorland, 27th ed)
	Angiomyolipoma - A benign tumor containing vascular, adipose, and muscle elements. It occurs most often in the kidney with smooth muscle elements (angiolipoleiomyoma) in association with tuberous sclerosis. (Dorland, 27th ed)
	Lipoma - A benign tumor composed of fat cells.
	Liposarcoma - A malignant tumor derived from primitive or embryonal lipoblastic cells. It may be composed of well-differentiated fat cells or may be dedifferentiated: myxoid (LIPOSARCOMA, MYXOID), round-celled, or pleomorphic, usually in association with a rich network of capillaries. Recurrences are common and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces. (From Dorland, 27th ed; Stedman, 25th ed)
	Myelolipoma - A rare benign tumor of the adrenal gland, several centimeters in diameter, composed in varying proportions of adipose tissue, lymphocytes, and primitive myeloid cells, probably a developmental abnormality. (Dorland, 27th ed)

Neoplasms, Adipose Tissue Medical Definitions and Terms

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