a monoclonal antibody specific for columnar epithelium ( rge 53 ) gave a positive reaction in endocervical columnar cells and in some immature metaplastic cells but was negative in subcolumnar reserve cells , squamous ( metaplastic ) cells , dysplastic cells , and most cases of carcinoma in situ .
C0225337
columnar epithelium
C1516837
endocervical columnar cells