TY  - CHAP
M1  - Book, Section
TI  - Hemorrhoids
A1  - Doherty, Gerard M.
PY  - 2010
T2  - Quick Answers Surgery
AB  - •  Internal  hemorrhoids  originate  above  dentate  line,  covered  by  mucosa•  External  hemorrhoids  are  vascular  complexes  covered  by  anoderm,  below  dentate  line•  Function  as  vascular  pillows,  protect  the  anal  canal  during  defecation•  No  correlation  between  constipation  and  hemorrhoids•  Internal  hemorrhoids  classification:-First-degree:  Bleed-Second-degree:  Bleed  and  prolapse  but  spontaneously  reduce-Third-degree:  Bleed,  prolapse,  and  require  manual  reduction-Fourth-degree:  Incarcerated•  Internal  hemorrhoids  become  symptomatic  when  chronic  engorgement  leads  to  tissue  laxity  and  tissue  prolapse  into  the  anal  canal•  External  hemorrhoids  become  symptomatic  with  thrombosis  
SN  - 
PB  - The McGraw-Hill Companies
CY  - New York, NY
Y2  - 2024/04/18
UR  - accesssurgery.mhmedical.com/content.aspx?aid=58112152
ER  -