Auriculocondylar syndrome

MONDO:0000107

Auriculo-condylar syndrome (ACS) presents with bilateral external ear malformations ('question mark' ears), mandibular condyle hypoplasia, microstomia, micrognathia, microglossia and facial asymmetry. Additional manifestations include hypotonia, ptosis, cleft palate, puffy cheeks, developmental delay, impaired hearing and respiratory distress.

Also known as: auriculo-condylar syndrome, question mark ear syndrome, dysgnathia complex, ears prominent and constricted, question mark ear, question-mark ear syndrome

2 clinical trials for this condition and its sub-types.

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Sub-types

Auriculocondylar syndrome 1 (0) Auriculocondylar syndrome 2 (0) Auriculocondylar syndrome 2B (0) Auriculocondylar syndrome 3 (0) Auriculocondylar syndrome 4 (0) Question mark ears, isolated (0)

Broader categories

Disease (618) Hereditary disease (172) Human disease (14) Ear malformation (3) Disease of genetic or genomic mechanism (2) Disease by etiologic mechanism (0)

Trials to join now! 1 Completed 1

New study counts ear anomalies in newborns

Knowledge-focused Completed

This study looked at 99 healthy full-term newborns to see how many had ear shape differences. Doctors took photos and classified each ear as normal or having an anomaly. The goal was to better understand how common these differences are and how to categorize them.

Sponsor: University Hospital, Rouen • Aim: Knowledge-focused

Last updated Jun 27, 2026 09:06 UTC

Auriculocondylar syndrome

Sub-types

Broader categories

New study counts ear anomalies in newborns