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A benign uterine tumor composed principally of smooth muscle cells.
Any neoplasm originating in muscle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a benign tumor of muscle tissue. A myoma that develops from smooth muscle (uterus, intestine, stomach, skin) is called a leiomyoma; a myoma forming from striated skeletal or heart muscle is a rhabdomyoma. Leiomyomas of the stomach and intestine and rhabdomyomas are rare; they are found accidentally during surgery or in autopsies. Besides muscle fibers, a myoma usually contains connective tissue and resembles a fibromyoma.

Myomas (fibromyomas) of the uterus are very common. The tumors are generally multiple and consist of individual nodules of different sizes and shapes. Some tumors weigh several kilograms. Fibromyomas of the uterus result from hormonal disturbances related to ovarian function. They occur most often in women over 30 years of age. Myomas may cause prolonged bleeding, which is followed by anemia and compression of the urinary bladder, blood vessels, and nerves of the minor pelvis. The tumor continues to grow until menstruation ceases, usually when the woman is between the ages of 50 and 55. If a tumor is discovered, the woman should be examined by a physician three or four times a year. Surgery is indicated if the tumor is large or exhibits rapid growth and if the bleeding does not respond to conservative treatment.


Petchenko, A. I. Fibromiomy matki. Kiev, 1958.
Giliazutdinova, Z. Sh. K patogenezu fibromiomy matki. Kazan, 1967.
Persianinov, L. S. Operativnaia ginekologiia. Moscow, 1971.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive ?
Grasso et al., "Predicting success of single step hysteroscopic myomectomy: a single centre large cohort study of single myomas," International Journal of Surgery, vol.
[4] In our case, gradual growth of the uterine myoma occurred over 3 years.
In addition, the researchers found that SIS was more accurate than TVUS for diagnosing polyps and myomas. (5)
After removing the mass the cystic part of mass contained the mucinous substance in brownish color and the appearance of solid part of mass was similar to myoma. The specimen was examined by rapid frozen pathology and the results showed the presence of endometrial tissue and leiomyoma.
Oestrogen-induced angiogenesis and implantation contribute to the development of parasitic myomas after laparoscopic morcellation.
In general, we do not offer RALM to patients who have more than 15 myomas, a single myoma that is larger than 12 to 15 cm, or when the uterus is more than 2 fingerbreadths above the umbilicus (unless the patient's torso allows for an adequate insufflated workspace).
The differential diagnosis included the submucous myoma of uterus and uterine prolapse, vaginal wall cyst, or vaginal wall prolapsed.
Ultrasound diagnosis of uterine myomas and complications in pregnancy.
In this regard, the new US classification of myomas, MUSA 2015 (morphological uterus sonographic assessment; [8, 9]) introduced to define and standardize US imaging of uterus fibroids, could be useful to better correlate the localization and characteristics of myoma before laparoscopy and reduce the risk of rupture in pregnancy.
Uterine artery embolisation (UAE) for treatment of myomas. Geburtshilfe und Frauenhielkunde 2014;74(5):433-435.