Category: M
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Maser
Acronym for microwave amplification by stimulation emission of radiation. It is a device that produces a small, non-diverging radiation beam.
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Masculation
Development of male secondary sexual characteristics.
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Martin’s bandage
A roller bandage of rubber used for exerting pressure on an extremity, as for varicose veins and for exsanguination, as with an Esmarch bandage.
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Martha mitchell effect
The mistaken diagnosis by a medical professional that a patient has a delusional disorder.
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Marshall-marchetti-krantz procedure
A surgical procedure used to treat urinary stress incontinence in women. The incontinence is caused by a weakness in the support of the bladder neck and proximal urethra. Sutures are placed periurethrally in the vaginal wall and anchored to the perichondrium of the pubic symphysis, offering a better cystourethral angle and firm support.
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Marrara syndrome
An allergic cause of nasopharyngitis, occurring in those who have eaten incompletely cooked animal organs, e.g., goat lung or liver, infested with nymphs of the parasite Linguatula serrata.
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Marlex mesh
A monofilament, biologically inert mesh used in surgical procedures to help cover or strengthen areas, as in hernia repair.
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Marker only relapse
An asymptomatic relapse of an illness, that is, one that is only evident on laboratory testing.
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Marjolin ulcer
A carcinoma that grows at the site of a chronic wound (e.g., a nonhealing scar or burn). The tumor is most often a squamous cell carcinoma and often metastasizes. An ulcer that arises from the cancerous transformation of a persistent or dormant ulcer or scar, particularly one that originated from an old burn or radiation…
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Marginoplasty
Plastic surgery of a border, as of an eyelid.