Equine Oral, Esophageal and Rectal disorders
Perirectal abscesses and other disorders
Perirectal abscesses are not common and may be secondary to trauma or lymph node disorders.
Rectal atresia is considered heritable. Rectal tumors are common in gray horses (melanomas). Youtube video– powerpoint on rectal tumors and anal atresia. No idea why you tube blocked it.
Resources
Perirectal abscesses: More than a pain in the butt. Equine Vet Educ. 2023;35:581–583.
Antimicrobial therapy for GI diseases in horses, 2003 VCNA, Vol.19(3), pp.645-663