Male menopause
A controversial concept reflecting the belief that the decline in testosterone levels observed in men as they age causes a clinically significant and potentially treatable set of symptoms, including sexual dysfunction, mood changes, weight gain, fatigue, and other nonspecific symptoms. While testosterone therapy has been recommended to treat men with midlife symptoms of low testosterone levels, the value of male hormone therapy remains controversial because there are few long-term studies about the effects or benefits of testosterone supplementation.
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- Male pelvis
The lower part of the abdomen that is located between the hip bones in a male. The male pelvis is more robust, narrower, and taller than the female pelvis. The angle of the male pubic arch and the sacrum are narrower as well.
- Malformation
A structural defect in the body due to abnormal embryonic or fetal development. There are many types of malformations. For example, cleft lip and cleft palate. See also Congenital malformation.
- Malformation, arteriovenous
Surgery, which is the best-known and longest-standing treatment for AVM. Surgery for an AVM involves identifying the margins of the malformation, ligating (tying off) or clipping the feeder arterial vessels, obliterating the draining veins, and removing or obliterating the nidus (the nest) of the AVM. Endovascular occlusion, which involves closing off the vessels of the […]
- Malformation, arteriovenous (AVM)
Surgery, which is the best-known and longest-standing treatment for AVM. Surgery for an AVM involves identifying the margins of the malformation, ligating (tying off) or clipping the feeder arterial vessels, obliterating the draining veins, and removing or obliterating the nidus (the nest) of the AVM. Endovascular occlusion, which involves closing off the vessels of the […]
- Malformation, congenital
A physical defect present in a baby at birth, irrespective of whether the defect is caused by a genetic factor or by prenatal events that are not genetic. In a malformation, the development of a structure is arrested, delayed, or misdirected early in embryonic life and the effect is permanent. Congenital malformations can involve many […]