Anorectal disorders: Difference between revisions

 
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==Background==
[[File:Rectum anatomy en.png|thumb|Anatomy of the anus and rectum.]]
[[File:Human anus-en.png|thumb|Anatomy of the anus.]]
[[File:Gray1080.png|thumb|The interior of the anal cami and lower part of the rectum, showing the anal columns and the anal valves between their lower ends (columns in image numerous than typical).]]
[[File:Gray1078.png|thumb|Coronal section of rectum and the anal canal.]]
==Clinical Features==
==Visual Diagnosis==
<gallery mode="packed">
File:PMC2653786 ijmsv06p0077g13.png|[[Anal tags]]
File:DSCB4096(anal worms or just toilet paper remainders@).jpg|[[Enterobius]] (pinworms)
File:M 44 anus 22.jpg|[[External hemorrhoid]]
File:Anal fissure 2.jpg|[[Anal fissure]]
File:SOA-Condylomata-acuminata-around-anus.jpg|[[Anal warts]]
File:Perianalabscess.jpg|[[Perianal abscess]]
File:Hemrrhoids 05.jpg|[[Internal hemorrhoid]] with prolapse
File:Pilonidal abscess.jpg|[[Pilonidal cyst]]
File:Full thickness rectal prolapse & mucosal prolapse..jpg|[[Rectal prolapse]]
</gallery>
==Differential Diagnosis==
==Differential Diagnosis==
{{Anorectal DDX}}
{{Anorectal DDX}}


==Algorithmic Diagnostic Approach==
==Evaluation==
===Pain and Bleeding===
===Algorithmic Diagnostic Approach===
#External [[hemorrhoid]]
*Pain
#Prolapsed internal [[hemorrhoid]]
**Bleeding
#[[Anal Fissure]]
***External [[hemorrhoid]]
##Off midline = cancer, [[HIV]], [[TB]], [[Crohn's]]
***Prolapsed internal [[hemorrhoid]]
***[[Anal Fissure]]
****Off midline = cancer, [[HIV]], [[TB]], [[Crohn's]]
**No bleeding
***Swelling
****[[Anorectal abscess]]
*****Perirectal
*****Ischiorectal
*****Intersphincteric
*****Supralevator
****[[Pilonidal cyst]]
****[[Anal fistula]]
****Hidradenitis suppurativa
***No swelling
****[[Proctalgia fugax]]
*No pain
**Bleeding
***Cancer
***Internal [[hemorrhoid]]
**Swelling
***Itch: [[Condyloma acuminata]]
***No itch: [[Rectal prolapse]]
**Itching
***Discharge: [[Proctitis]]
***No discharge: [[Pruritus Ani]]


===Pain and No Bleeding===
#Swelling
##[[Anorectal Abscess|Abscess]]
###Perirectal
###Ischiorectal
###Intersphincteric
###Supralevator
##[[Pilonidal Cyst]]
##[[Anal Fistula]]
##Hidradenitis suppurativa
#No swelling
##[[Proctalgia Fugax]]


===Painless Bleeding===
#Cancer
#Internal [[hemorrhoid]]


===Painless Swelling===
==Management==
#Itch: Condyloma acuminata (warts secondary to HPV)
#No itch: Rectal prolapse


===Itching===
==Disposition==
#Discharge: [[Proctitis]]
#No discharge: [[Pruritus Ani]]


==See Also==
==See Also==
*[[Diagnoses by Body Part (Main)]]
*[[Diagnoses by Body Part (Main)]]
==External Links==
==References==


==References==
==References==

Latest revision as of 15:56, 23 April 2025

Background

Anatomy of the anus and rectum.
Anatomy of the anus.
The interior of the anal cami and lower part of the rectum, showing the anal columns and the anal valves between their lower ends (columns in image numerous than typical).
Coronal section of rectum and the anal canal.

Clinical Features

Visual Diagnosis

Differential Diagnosis

Anorectal Disorders

Non-GI Look-a-Likes

Evaluation

Algorithmic Diagnostic Approach


Management

Disposition

See Also

External Links

References

References