Sandbox:Sahar

Lipomatous tumor	Age of onset	Gender preponderance	Location	Clinical features	Diagnostic feature(s)	Other features
Angiolipoma	Second and third decades of life	Male > female	More commonly seen in forearm May also affect trunk and upper arm	Subcutaneous nodule Tender to palpation Less than 2 cm	Encapsulated, yellow nodules with a reddish tinge A combination of fatty tissue and vascular channels Fibrin thrombi is present in vascular channels (characteristic finding)	Benign
Myolipoma	Fifth and sixth decades of life	Female > male	More commonly seen in retroperitoneum, abdomen, pelvis, inguinal region, or abdominal wall May also affect extremities	Subcutaneous mass which may also engage superficial muscular fascia Size differs depending on the location	Partially encapsulated mass with partially yellow-white cut surface A combination of mature adipocytes and sheets of well-differentiated smooth muscle No nuclear atypia Sieve-like appearance at low magnification (due to interspersed location of smooth muscle component)	Benign It is usually large and located in the deep soft tissues

Example #1

The patient presented with S.O.B. one year after hysterectomy for a leiomyomatous uterus.

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  CT in Intravenous leiomyomatosis

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