A benign tumor of smooth muscle, the type of muscle that is found in the heart and uterus. A leiomyoma of the uterus is commonly called a fibroid. Uterine fibroids are the single most common indication for hysterectomy. Fibroids can be present and be inapparent. However, they are clinically apparent in up to 25% of women and cause significant morbidity, including prolonged or heavy menstrual bleeding, pelvic pressure or pain, and, in rare cases, reproductive dysfunction. Both the economic cost and the effect of fibroids on quality of life are substantial. Fibroids are not cancerous. Drugs that manipulate the levels of steroid hormones are effective in treating fibroids but side-effects limit their long-term use. Fibroids may be removed if they cause discomfort or if they are associated with uterine bleeding. Surgery is the mainstay of fibroid treatment. In addition to hysterectomy and abdominal myomectomy, various minimally invasive procedures have been developed to remove fibroids.
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A benign neoplasm derived from smooth (nonstriated) muscle. [leio- + G. mys, muscle, + -oma, tumor]
- l. cutis cutaneous eruption of multiple small painful nodules composed of smooth muscle fibers; derived from arrector muscles of hair. Solitary, nonpainful l. cutis may arise from cutaneous blood vessel s and genital skin. SYN: dermatomyoma.
- parasitic l. a uterine l. which has become detached from the uterus and adherent to another peritoneal surface from which it derives a blood supply.
- vascular l. a markedly vascular l., apparently arising from the smooth muscle of blood vessel s. SYN: angioleiomyoma, angiomyofibroma, angiomyoma.

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leio·my·o·ma .lī-ō-mī-'ō-mə n, pl -mas also -ma·ta -mət-ə a benign tumor (as a fibroid) consisting of smooth muscle fibers
leio·my·o·ma·tous -mət-əs adj

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a benign tumour of smooth muscle. Such tumours occur most commonly in the uterus (see fibroid) but can also arise in the digestive tract, walls of blood vessels, etc. They may undergo malignant change (see leiomyosarcoma).

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leio·myo·ma (li″o-mi-oґmə) pl. leiomyomas, leiomyoґmata [leio- + myoma] a benign tumor derived from smooth muscle; called also fibroid and fibroid tumor.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Leiomyoma — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = D21, D25 ICD9 = ICD9|218 ICDO = 8890 8894 OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D007889A leiomyoma (plural is leiomyomata ) is a benign smooth muscle neoplasm …   Wikipedia

  • leiomyoma — Benign tumour of smooth muscle in which parallel arrays of smooth muscle cells form bundles which are arranged in a whorled pattern. The amount of fibrous connective tissue is very variable. Leiomyoma of the uterus (fibroid) is the commonest form …   Dictionary of molecular biology

  • leiomyoma uteri — uterine leiomyoma a leiomyoma of the uterus, usually occurring in the third and fourth decades of life, characterized by multiple, firm, round, sharply circumscribed, unencapsulated, gray to white tumors that show a whorled pattern on cut section …   Medical dictionary

  • leiomyoma cutis — a leiomyoma arising from cutaneous or subcutaneous smooth muscle fibers, occurring singly or multiply, usually in the form of lesions arising from arrectores pilorum muscles (piloleiomyoma); it may also occur as a solitary genital lesion arising… …   Medical dictionary

  • leiomyoma — leiomyomatous /luy oh muy om euh teuhs, oh meuh teuhs/, adj. /luy oh muy oh meuh/, n., pl. leiomyomas, leiomyomata / meuh teuh/. Pathol. a benign tumor composed of nonstriated muscular tissue. Cf. rhabdomyoma. [1885 90; < Gk leîo(s) smooth +… …   Universalium

  • leiomyoma — noun A non cancerous tumor of smooth muscle …   Wiktionary

  • leiomyoma — n. benign uterine tumour (Medicine) …   English contemporary dictionary

  • leiomyoma — leio·myoma …   English syllables

  • leiomyoma — n. a benign tumour of smooth muscle. Such tumours occur most commonly in the uterus (see fibroid) but can also arise in the digestive tract, walls of blood vessels, etc. They may undergo malignant change (see leiomyosarcoma) …   The new mediacal dictionary

  • leiomyoma — lei•o•my•o•ma [[t]ˌlaɪ oʊ maɪˈoʊ mə[/t]] n. pl. mas, ma•ta [[t] mə tə[/t]] pat a benign tumor composed of nonstriated muscular tissue Compare rhabdomyoma • Etymology: 1885–90; < Gk leîo(s) smooth +myoma lei•o•my•om•a•tous ˌlaɪ oʊ maɪˈɒm ə təs …   From formal English to slang

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