TY  - CHAP
M1  - Book, Section
TI  - Perirectal Abscess, Fistula-in-Ano, and Anal Fissure
A1  - Ellison, E. Christopher
A1  - Zollinger, Jr., Robert M.
A1  - Pawlik, Timothy M.
A1  - Vaccaro, Patrick S.
A1  - Bitans, Marita
A1  - Baker, Anthony S.
PY  - 2022
T2  - Zollinger’s Atlas of Surgical Operations, 11e
AB  - The  anatomy  of  the  anal  region  is  shown  in  FIGURE  1.  Abscesses  around  the  anal  canal  arise  from  infection  of  the  anal  crypt  of  Morgagni  (FIGURE  2)  and  can  be  either  superficial  perianal  abscesses  (80%)  or  deeper  ischiorectal  abscesses  (20%)  (FIGURE  3).  A  perianal  abscess  is  found  adjacent  to  the  anal  canal,  either  on  the  right  or  left  side,  anterior  or  posterior.  The  patient  usually  complains  of  pain  that  may  be,  but  not  always,  associated  with  a  fever.  The  diagnosis  is  made  by  inspection  of  the  perianal  area,  which  will  reveal  a  red,  “angry,”  and  often  fluctuant  abscess.  A  digital  examination  should  not  be  done  because  of  the  painful  nature  of  the  problem.  FIGURE  3  shows  the  location  of  perianal  and  perirectal  abscesses.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/19
UR  - accesssurgery.mhmedical.com/content.aspx?aid=1187822081
ER  -