Cyclopia is a rare form of lethal holoprosencephaly (HPE) due to incomplete cleavage of prosencephalon during embryogenesis, leading to failure of the orbits of the eye to divide into two cavities. We report two cases, one with cyclopia and another case of cyclopia with agnathia-otocephaly complex (AOC). AOC (also known as agnathia-microstomia-synotia syndrome) is a rare lethal congenital malformation of the first branchial arch characterised by the association of agnathia (agenesis of mandible) or mandibular hypoplasia, melotia (anteromedial malposition of ears), microstomia (small mouth), aglossia or microglossia (absent or rudimentary tongue). These two reported cases had in common a single eye and alobar HPE. The first case was live born and the second stillborn. Both mothers did not have antenatal care.
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http://dx.doi.org/10.1136/bcr-2017-220159 | DOI Listing |
Birth Defects Res
December 2024
Department of Obstetrics and Gynecology, Perinatology unıt of Elazığ City Hospital, Elazığ, Turkey.
Background: Agnathia-otocephaly complex (AOC) is a rare and complex craniofacial malformation characterized by mandibular hypoplasia or agnathia, auricular fusion, microstomia with oroglossal hypoplasia or aglossia. It has a very bad prognosis and can arise alone or in conjunction with heart defects and forebrain abnormalities.
Case Report: A standard second-trimester ultrasound exam was recommended for, a 23-year-old primigravida woman who was at 22 weeks gestation.
Objective: To characterize incidence of mandibular anomalies (MAs) and compare gestational age, airway interventions, and complications among individuals with MA phenotypes (isolated retrognathia, isolated micrognathia, syndromic micrognathia, micrognathia plus cleft palate/cleft lip and palate, agnathia/micrognathia plus cervical auricle/otocephaly, and agnathia/micrognathia plus microstomia) and unaffected individuals.
Methods: The Healthcare Cost and Utilization Project Kids' Inpatient Database was used to collect data over a 20-year period beginning in 2000. Interventions were classified as perinatal when performed on day of life (DOL) 0 or 1 and subsequent when performed during the birth hospitalization after DOL 1.
Cureus
July 2023
Internal Medicine, Ayub Teaching Hospital, Abbottabad, PAK.
Otocephaly is a rare congenital abnormality characterized by the absence or underdevelopment of the mandible, misplacement of the ears towards the front, a small mouth, and absence or underdevelopment of the tongue. The syndrome complex of otocephaly can be categorized into four types based on associated anomalies. We present a case of this congenital anomaly in a newborn baby delivered by a 40-year-old woman who presented in active labor with premature rupture of membranes.
View Article and Find Full Text PDFAm J Case Rep
May 2023
Department of Obstetrics/Gynecology, Showa University Koto Toyosu Hospital, Tokyo, Japan.
BACKGROUND Agnathia-otocephaly complex (AOC) is a rare congenital malformation due to a first-branch arch disorder and has been considered lethal. However, milder variants of the isolated type of AOC have been reported as nonlethal. The ex-utero intrapartum treatment (EXIT) procedure is basically indicated for a fetus with a high risk of airway obstruction immediately after birth; it is not indicated for all AOC cases but is chosen to treat cases until the airway can be evaluated to achieve a better prognosis.
View Article and Find Full Text PDFGenes (Basel)
December 2022
ALTAMEDICA, Human Genetics Laboratory, Viale Liegi 45, 00198 Rome, Italy.
Agnathia-otocephaly complex (AOC) is a rare and usually lethal malformation typically characterized by hypoplasia or the absence of the mandible, ventromedial and caudal displacement of the ears with or without the fusion of the ears, a small oral aperture with or without a tongue hypoplasia. Its incidence is reported as 1 in 70,000 births and its etiology has been attributed to both genetic and teratogenic causes. AOC is characterized by a wide severity clinical spectrum even when occurring within the same family, ranging from a mild mandibular defect to an extreme facial aberration incompatible with life.
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