anal gland cyst

Definition : Anal gland/duct cyst (AGC) is rare and observed in only 0.05% of patients undergoing anal surgery. AGC is thought to be a retention cyst in the anal gland and arises when an obstruction of the anal duct causes fluid collection in the anal gland.

Open references

 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7392575/