Ischioanal Abscess
Definition: the abscess in the ischioanal fossa, located between the anal canal and the external sphincter muscles.
Features:
It creates severe pain, swelling, and fever.
The ischioanal fossa contains fat and connective tissue along with the anal glands. Infection of these glands can lead to the formation of an abscess within this anatomical space.
Often develops as a result of an infection in the anal glands.
Anatomical Explanation: a surgeon needs following anatomical knowledge to understand this clinical condition
Anatomy of Ischioanal fossa: It is bounded superiorly by the pelvic diaphragm, laterally by the obturator internus muscle, and medially by the anal canal.The ischioanal fossa contains fat, connective tissue, and anal glands.
interior of anal canal and location of anal gland
It is situated below the dentate line, and it is area in lined by stratified squamous epithelium, this area contains numerous sensory nerve endings, making it sensitive to pain,
Anal glands, also known as anal sinuses or crypts, are located within the anal canal and around the anal opening. They are small tubular structures that extend into the submucosa of the anal canal.These glands secrete mucus, which helps with lubrication during defecation and protects the anal canal from irritation.
anatomy of external anal sphincter,is a striated muscle that surrounds the anal canal.
It plays a crucial role in controlling bowel movements and maintaining continence.
An ischioanal abscess can cause pain and discomfort due to its proximity to the external anal sphincter.
Anatomy of pelvic diaphragm The pelvic diaphragm is a muscular partition that separates the pelvic cavity from the perineum. The superior border of the ischioanal fossa is formed by the pelvic diaphragm.
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