Robuta

https://pubmed.ncbi.nlm.nih.gov/22440928/
Colon/ileocolic CD location appears to be a significant predictor of perianal manifestations of CD. Patients with PCD are more likely to require permanent...
perianalcrohndiseasepredictivefactors
https://pubmed.ncbi.nlm.nih.gov/11884058/
Primary anorectal lymphoma presenting as a perianal abscess in an HIV-positive male
as aperianal abscessprimaryanorectallymphoma
https://www.merckmanuals.com/en-ca/professional/multimedia/image/acrodermatitis-enteropathica-with-perianal-and-perineal-dermatitis
acrodermatitis enteropathicamerck manualimageperianalperineal