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sinus

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sinus

1. Anatomy
a. any bodily cavity or hollow space
b. a large channel for venous blood, esp between the brain and the skull
c. any of the air cavities in the cranial bones
2. Pathol a passage leading to a cavity containing pus
3. Botany a small rounded notch between two lobes of a leaf, petal, etc.
4. an irregularly shaped cavity
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

sinus

(sÿ -nŭs) A semienclosed break along the borders of a lunar mare or in a scarp. The word is used in the approved name of such a feature on the Moon. (Latin: bay)
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

sinus

[′sī·nəs]
(biology)
A cavity, recess, or depression in an organ, tissue, or other part of an animal body.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sinus

 

in anatomy, a cavity, protrusion, or long closed channel. In vertebrates (including man), the term “sinus” refers to a channel filled with venous blood in the dura mater. The cavity in some cranial bones is also called a sinus. [23–1297–]

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
Besides removing existing pilonidal sinus, it eliminates some of the predisposing factors for the development of another sinuses.
The comparison of the results of different operation techniques for pilonidal sinus disease.
Pilonidal sinus is common in younger age groups and therefore has an impact on the working members of the community.
Although many treatment modalities are described, surgery remains the mainstay of treatment and is aimed at a simplified procedure with minimal post-operative pain, minimal wound care, rapid wound healing, shorter hospital stay, early return to daily activities and low recurrence rate.11 While various different surgical techniques, ranging from Wide local excision to complex rotation flaps procedures have been developed, no single method is labeled as the ideal treatment.12 A study done on outcome of pilonidal sinus reported wound infection rate of 38.4% after open procedure and another study reported wound complication rate of 7% with Limberg Flap Procedure.13
Pilonidal sinus is a disease where a variety of surgical procedure have been prescribed.
Meta-analysis of randomized controlled trials comparing different techniques with primary closure for chronic pilonidal sinus. Tech.
Various techniques are used currently in the treatment of pilonidal sinus disease [15].
(1) Epidemiology: in present study, pilonidal sinus disease is an acquired condition usually seen in young adults of 21 to 30 years of age.
Historically, surgical treatment of pilonidal sinus began with excision and marsupialization or excision and primary closure.
Inter-digital pilonidal sinus is an acquired disease caused by the penetration of hair through the thin epidermis of the inter-digital region.
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