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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Possible contributing factors may be multiple myomas typical of an African population, since it could be reasoned that more PVA particles might be needed to embolise these uteri.
All patients underwent ultrasonographic and color flow Doppler imaging to evaluate myomas followed by myomectomy or hysterectomy.
Random sections had been cut from myomas that appeared "usual" on gross examination and were fixed, sectioned, and stained in routine fashion.
Increased growth of myomas among women taking tamoxifen or receiving transdermal or injectable estrogen replacement therapy further supports the importance of estrogen.
Given that most researchers have concluded that it is reasonable to remove 3-5 myomas robotically are there follow-up data that patients with only 3-5 small myomas actually benefit from myomectomy from either a fertility or pain standpoint?
The current study focused on 20 subserosal or intramural myomas, which ranged in size from 4 to 10 cm.
Pelvic pain can be caused by a number of serious disorders including endometriosis, adhesions, pelvic inflammatory disease and uterine myomas.
The axial uterus, adeno-myosis, coexisting myomas, marked obesity, [and] previous surgery all compromise the ability of transvaginal ultrasound to see a distinct endometrial echo that can or should be relied on.
Positive Phase II results for cetrorelix - Announcement of positive results with cetrorelix (LHRH antagonist) in six Phase II trials in endometriosis, pre-surgical treatment of uterine myomas and benign prostatic hyperplasia (BPH).
In the asymptomatic women, findings included myomas, polyps, postmenopausal cysts, ovarian dysfunction, adenomyosis, diverticula of the sigmoid colon, escape-ovulation while on oral contraceptives, endometriomas, and an early pregnancy.
MR images can now be incorporated in a real-time, 3-dimensional fashion into the surgeon's console for use in mapping, detecting, locating, and enucleating myomas.