_:b794792 . "Anaplastic Carcinoma of RectumSYNCI" . _:b794792 _:b722116 . "Neoplastic Process"^^ . "Rectal Undifferentiated Carcinoma"^^ . _:b742045 . "Rectal Undifferentiated Carcinoma"^^ . "An invasive malignant epithelial tumor that arises from the rectum. There is no morphologic, immunophenotypic, or molecular biological evidence of glandular or squamous differentiation.NCI" . "Undifferentiated Carcinoma of the RectumSYNCI" . "Rectal Anaplastic CarcinomaSYNCI" . "Undifferentiated Rectal CarcinomaSYNCI" . _:b640969 _:b742045 . _:b722116 . "Carcinoma Simplex of the Rectum.SYNCI" . "C7974"^^ . _:b640969 . _:b722116 . "Malignant"^^ . _:b640969 . _:b742045 _:b727021 . "C0279657"^^ . "Rectal Undifferentiated CarcinomaPTNCI" . "Undifferentiated_Rectal_Carcinoma"^^ . _:b727021 _:b794792 . . _:b722116 . _:b727021 . "Anaplastic Carcinoma of the RectumSYNCI" . "Undifferentiated Carcinoma of RectumSYNCI" .