Overview
Perianal warts are benign skin lesions caused by human papillomavirus (HPV) infection, typically manifesting as soft, flesh-colored growths around the anal region. [Not directly addressed in provided abstracts]Diagnosis
Clinical examination often sufficient for diagnosis [Not directly addressed in provided abstracts]
Biopsy may be necessary to rule out other conditions like perianal thrombosis or ulcerations [Not directly addressed in provided abstracts]
Histological examination can differentiate between benign warts and other lesions such as thrombi 2Management
First-line treatment: Topical agents like imiquimod or podophyllotoxin [Not directly addressed in provided abstracts]
Cryotherapy and surgical excision for resistant or extensive lesions [Not directly addressed in provided abstracts]
Discontinuation of nicorandil if perianal ulceration is suspected to be drug-induced, leading to resolution 1Special Populations
Pregnancy: Management typically involves conservative approaches due to teratogenic concerns with some treatments [Not directly addressed in provided abstracts]
Elderly: May require careful consideration of comorbidities and treatment tolerance [Not directly addressed in provided abstracts]
Comorbidities: Patients with concurrent gastrointestinal issues may need evaluation for drug-induced complications like nicorandil-induced ulceration 1Key Recommendations
Recognize nicorandil as a rare but significant cause of severe perianal ulceration and consider discontinuation if suspected 1 (Evidence: Weak)
Excise recurrent perianal lesions confirmed as thrombi via histology, leaving skin bridges to prevent recurrence 2 (Evidence: Weak)
Tailor management strategies considering patient-specific factors such as pregnancy status and comorbidities [Expert opinion] (Evidence: Expert opinion)References
1 Baker RP, Al-Kubati W, Atuf M, Phillips RK. Nicorandil-induced severe perianal ulceration. Techniques in coloproctology 2007. link
2 Brearley S, Brearley R. Perianal thrombosis. Diseases of the colon and rectum 1988. link