| Lanz | Otto, Swiss surgeon in Amsterdam, 1865-1935. See: Lanz's line. (05 Mar 2000) |
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| Lanz's line | A horizontal plane passing through the anterior superior iliac spines; it marks the boundary between the lateral and umbilical regions superiorly and the inguinal and pubic regions inferiorly. Synonym: planum interspinale, Lanz's line. (05 Mar 2000) |