preauricular sinus

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.
References in periodicals archive ?
The various benign lesions of pinna presenting to OPD in our study were found to be keloid, pseudocyst of auricle, preauricular sinus or cyst, sebaceous cyst, hemangioma, dermoid and neurofibroma of pinna, which present with swelling of the pinna with or without pain.
The patient was a 6-year-old girl who presented with bilaterally draining anterior neck puncta, a preauricular sinus, and moderately severe bilateral hearing loss.
Examination further revealed a preauricular sinus on the right (figure 3).
Surgery may be deferred or withheld in cases in which the anomaly is asymptomatic, as in the case of a nondraining and noninfected preauricular sinus.
Bacteriological pattern of Preauricular sinus infection
For microscopy a labeled swab-stick was used to collect the discharge from the preauricular sinus under strictly aseptic environment.
Although it can be said that preauricular sinus is a common congenital abnormality, only patients with infection/abscess of the sinus will usually present for treatment.
The clinical differential diagnosis for pilomatricoma in children includes epidermal inclusion cyst, ossifying hematoma, branchial remnant, preauricular sinus, lymphadenopathy, giant cell tumor, chondroma, dermoid cyst, degenerating fibroxanthoma, foreign body reaction, and osteoma cutis [2].
OF CASES TYMPANOPLASTY 444 TYMPANOPLASTY WITH MASTOIDECTOMY 116 EXTERNAL AUDITORY CANAL POLYPECTOMY 23 STAPEDOTOMY 18 TEAR EAR LOBULE REPAIR 15 KERATOSIS OBTURANS REMOVAL 11 WINDOW OPERATION 10 I & D OF POST AURICULAR ABSCESS 10 PREAURICULAR SINUS EXCISION 5 POSTAURICULAR DERMOID EXCISION 5 Table 2: DISTRIBUTION OF NOSE SURGERIES TYPE OF SURGERY No.
20) Sampath S, Keats B J, Lacassie Y, in their study of "A newly recognized autosomal dominant disorder involving hypertelorism, pre auricular sinus, punctal pits, and deafness mapping to chromosome14q31, described novel autosomal dominant disorder with variable phenotypic expression in a three-generation family; the major features include hypertelorism, preauricular sinus, deafness, and punctal pits with lacrimal-duct obstruction.
A new surgical technique for treatment of preauricular sinus.
Management of an infected preauricular sinus, using a lacrimal probe.