meniscus sign of Carman

A large semi-lunar hypodense zone that may be seen in ulcerated gastric adenocarcinomas, where there is a flattened polypoid mass with a broad central ulceration; the gastric mucosa adjacent to the polyp forms a smooth inner margin

meniscus sign of Carman

Radiology A large semi-lunar hypodense zone that may be seen in ulcerated gastric adenoCAs, where there is a flattened polypoid mass with a broad central ulceration; the gastric mucosa adjacent to the polyp forms a smooth inner margin. See Whalebone in a corset. Cf Quarter moon sign.
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