| Hilton's white l. |
a narrow wavy zone, usually not visible macroscopically but palpable on digital examination, that forms the lower border of the pecten, at the level of the interval between the subcutaneous part of the external anal sphincter and the lower border of the internal sphincter; called also anal intersphincteric groove.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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