Myoma


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myoma

[mī′ō·mə]
(medicine)
A benign uterine tumor composed principally of smooth muscle cells.
Any neoplasm originating in muscle.

Myoma

 

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.

REFERENCES

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

L. S. PERSIANINOV

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References in periodicals archive ?
1% of women experienced a decrease in myoma volume, with an average decline of -30.
This higher cutoff means we can achieve the vast majority of myoma resections in one sitting.
Hastanin 3 ay once dis merkezde myoma sekonder total abdominal histerektomi ve ayni seansta TOT uygulamasi anamnezi mevcuttu.
Early squamous-cell carcinoma in the cervix, accidentally discovered when the body of the uterus was being curetted for hemorrhage caused by hyperplasia of the endometrium and by a small submucous myoma.
A comparative study of the usefulness of toki-shakuyaku-san and an oral iron preparation in the treatment of hypochromic anemia in cases of uterine myoma.
The analyses in model 2 were adjusted for maternal age (continuous) and categorical variables for ethnicity, academic level, work status, tobacco smoking, infection (rubella, group B streptococci, Toxoplasma gondii, sexually transmitted diseases, and/or bacteriuria), diabetes, history of preterm birth, history of obstetrical-gynecological pathologies (congenital uterine malformations, uterine myoma, congenital fetal malformation, and/or thrombophilic conditions), parity, use of assisted reproductive technique, and infant sex (Table 1).
Of the 214 women, 112 were awaiting breast biopsy, a diagnostic procedure to investigate a suspicious lump in the breast; 42 were awaiting hepatic chemoembolization, a treatment for liver cancer; and 60 were awaiting uterine fibroid embolization, a treatment for uterine myoma or benign fibroids.
Takeda successfully received five indications approved from FDA on Prostate cancer, Endometriosis (suggested 6 months treatment), uterine myoma (suggested 3 months treatment), central precocious puberty (CPP), Pre-menopause breast cancer.
PregLem's lead product, PGL4001 Esmya(TM), completed Phase III clinical trials in June 2010 for the treatment of uterine myoma.
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See Shoon Myaing, Mahagita Myanmar Classics (Mandalay: Mandalay Myoma Amateur Music Association, 2001), 88.