항문관 암종

초록

Anal duct carcinoma, also known as anal gland carcinoma or adenocarcinoma of the anal canal, is an unusual anal cancer that accounts for approximately 0.1% of all gastrointestinal cancers. The tissues of origination are the glands of the anal duct. The features that differentiate this tumor from the usual rectal adenocarcinoma are prominent ductal structures, abundant mucin production with organized mucinous pools, and infiltration into the perirectal soft tissue. Delays in diagnosis most likely account for the poor prognosis associated with this cancer. presenting symptoms often mimic those of more common benign anorectal pathologic processes.