preauricular sinus

(redirected from preauricular pit)
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.

preauricular sinus

sinus tract or pit in preauricular skin, resulting from developmental defect of the first and second branchial arches.
Synonym(s): preauricular pit

pre·au·ric·u·lar si·nus

(prē'awr-ik'yū-lăr sī'nŭs)
Sinus tract or pit in preauricular skin, resulting from developmental defect of the first and second pharyngeal arches.
Synonym(s): preauricular pit.