| Presence of primary malignant neoplasm of anus at proximal surgical margin in anal resection specimen (observable entity) | | Presence of primary malignant neoplasm of anus at proximal surgical margin in anal resection specimen | | Status of proximal surgical margin involvement by primary malignant neoplasm of anus in anal resection specimen
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| | Id | 1156611002 | | Status | Defined |
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