RT Book, Section
A1 Ellison, E. Christopher
A1 Zollinger, Jr., Robert M.
A1 Pawlik, Timothy M.
A1 Vaccaro, Patrick S.
A1 Bitans, Marita
A1 Baker, Anthony S.
SR Print(0)
ID 1187822081
T1 Perirectal Abscess, Fistula-in-Ano, and Anal Fissure
T2 Zollinger’s Atlas of Surgical Operations, 11e
YR 2022
FD 2022
PB McGraw-Hill Education
PP New York, NY
SN 9781260440850
LK accesssurgery.mhmedical.com/content.aspx?aid=1187822081
RD 2024/04/20
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.