Definition: Removal of a portion of the walls of the maxillary antrum. Removal of the antrum (distal half) of the stomach; often combined with bilateral excision of portions of vagus nerve trunks (vagectomy) in treatment of peptic ulcer. Reconstruction of the continuity of the alimentary tract can be by a gastroduodenostomy (Billroth I) or a loop gastrojejunostomy (Billroth II).
[antrum + G. ektomē, excision]
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