tit sign

A finding in an upper GI series of films of an infant with hypertrophic pyloric stenosis, in which the completely obstructed antrum and adjoining pyloric canal simulate the voluptuous curves of a breast and nipple; the nipple becomes pronounced as the pyloric muscle unsuccessfully attempts to contract and push the barium beyond the markedly stenosed canal; rarely, normal peristaltic pouches may transiently increase in size, simulating the tit sign
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tit sign

Pyloric tit sign Imaging A finding in an upper GI series of films of a child with hypertrophic pyloric stenosis, in which the completely obstructed antrum and adjoining pyloric canal simulate the voluptuous curves of a breast and nipple; the nipple becomes pronounced as the pyloric muscle unsuccessfully attempts to contract and push the barium beyond the markedly stenosed canal; rarely, normal peristaltic pouches may transiently ↑ in size, simulating the tit sign
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.