Pilonidal Disease

May 14, 2017 by in GASTOINESTINAL SURGERY Comments Off on Pilonidal Disease

Fig. 6.1 Classical position for pilonidal sinus Fig. 6.2 Hair from pilonidal sinus (courtesy of Pankaj Garg, India) 6.4 Differential Diagnosis Furuncle, carbuncle, anal fistula (Fig. 6.3a, b), hidradenitis suppurativa,…

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Benign Ulcers of the Anorectum

May 14, 2017 by in GASTOINESTINAL SURGERY Comments Off on Benign Ulcers of the Anorectum

(i) Anal fissures (xvi) Rectal endometriosis (ii) Hemorrhoidal and varicose ulcer (xvii) Injury: (iii) Ulcer with mucosal prolapse  Self-inflicted (iv) Crohn’s disease and ulcerative colitis  Iatrogenic (v) Proctitis:  Anal intercourse…

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Anorectal Injuries

May 14, 2017 by in GASTOINESTINAL SURGERY Comments Off on Anorectal Injuries

Grade Type of injury Description of injury I Hematoma Contusion or hematoma without devascularization Laceration Partial-thickness laceration II Laceration Laceration <50% of circumference III Laceration Laceration >50% of circumference IV…

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Physiology of Defecation

May 14, 2017 by in GASTOINESTINAL SURGERY Comments Off on Physiology of Defecation

Fig. 2.1 Reflex mechanisms involved in defecation process The internal sphincter, the external sphincter, and the levator ani constitute the motor components. The internal sphincter unconsciously maintains continence by its…

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