perineum


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perineum

 [per″ĭ-ne´um]
the pelvic floor and associated structures occupying the pelvic outlet, bounded anteriorly by the pubic symphysis, laterally by the ischial tuberosities, and posteriorly by the coccyx. During childbirth the perineum may be torn, resulting in possible damage to the urinary meatus and anal sphincter. To avoid a perineal tear, the obstetrician often cuts the perineum just before delivery and sutures the incision after delivery of the infant and the placenta. This procedure is called an episiotomy. Surgical repair of an episiotomy or of a torn or lacerated perineum is called perineorrhaphy.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

per·i·ne·um

, pl.

per·i·ne·a

(per'i-nē'ŭm, -nē'ă), [TA]
1. Surface area between the thighs extending from the coccyx to the pubis that includes the anus posteriorly and the external genitalia anteriorly.
2. The compartment inferior to the pelvic diaphragm bounded peripherally by the osseofibrous structures comprising the pelvic outlet the surface of which is sense 1.
3. External surface of the central tendon of the perineum, lying between the vulva and the anus in the female and the scrotum and the anus in the male.
[L. fr. G. perineon, perinaion]
Farlex Partner Medical Dictionary © Farlex 2012

perineum

(pĕr′ə-nē′əm)
n. pl. peri·nea (-nē′ə)
1. The portion of the body in the pelvis occupied by urogenital passages and the rectum, bounded in front by the pubic arch, in the back by the coccyx, and laterally by part of the hipbone.
2. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.

per′i·ne′al (-nē′əl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

perineum

The mucocutaneous tissue between the posterior scrotum or vagina and the anal sphincter.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

per·i·ne·um

(per'i-nē'ŭm, -ă) [TA]
1. The area between the thighs extending from the coccyx to the pubis and lying below the pelvic diaphragm.
2. The external surface of the central tendon of the perineum, lying between the vulva and the anus in the female and the scrotum and the anus in the male.
[L. fr. G. perineon, perinaion]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

perineum

(per?i-ne'um) [Gr. perinaion]
1. The structures occupying the pelvic outlet and constituting the pelvic floor.
Enlarge picture
PERINEUM
2. The external region between the vulva and anus in a female or between the scrotum and anus in a male. It is made up of skin, muscle, and fasciae. The muscles of the perineum are the anterior portion of the intact levator ani muscle and the transverse perineal muscle. See: illustration; perineal body
Medical Dictionary, © 2009 Farlex and Partners

perineum

That part of the floor of the PELVIS that lies between the tops of the thighs. In the male, the perineum lies between the anus and the scrotum. In the female, it includes the external genitalia.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Perineum

The area between the opening of the vagina and the anus in a woman, or the area between the scrotum and the anus in a man.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Reconstruction of the pelvic floor and perineum with human acellular dermal matrix and thigh flaps following pelvic exenteration.
All the patients who died had fasciitis extending beyond the perineum. The patients with fasciitis extending onto the thighs and to the chest wall both died.
The following parameters were extracted from obstetric protocols and investigated: total number of deliveries, cesarean sections and episiotomies, number of intact perineum, and number of soft birth canal tears: vaginal and perineal tears grades I-III according to the actual classification per number of vaginal deliveries per year.
It is easy to apply, cost-effective, and provides optimal exposure of the perineum while maintaining sterility of the operative area.
Median raphe cysts are rare congenital structures that usually present in the midline of the perineum anywhere between the meatus to the anus.
The fistula extended from mid-jejunum to the perineum with extensive pelvic inflammatory change and near-complete occlusion of the pelvic outlet.
On further analysis of RTA victims who got injury on single site, it has been observed that head was the commonest region of injury in 52.68% of victims followed by extremity 27.33%, chest 9.33%, abdomen including perineum 7.33% and face 3.33% (Table II).
AA is a rare mesenchymal tumor that predominantly affects the perineum and pelvis of females of childbearing age, usually between the second and fourth decade of life.
Shoulders emerged from perineum were 71.73% (66/92), 15.21% (14/92) transversely, and 13.04% (12/92) emerged from under pubic arch.
Udder was significantly (Pless than 0.05) the highest tick infested site in both, followed by inner thighs, perineum, legs and tail, and neck, respectively in cattle, while followed by neck, tail, perineum, inner thighs, legs, and back and ears, respectively in buffaloes.
The perineum may be easily overlooked during imaging examinations, but it can potentially contain numerous acute conditions in patients presenting with pelvic pain.
The soft tissue defects of the anterior perineum can be caused by tumour excision, trauma, burns, Fournier's gangrene and genital mutilation.