• Fangmei Luo, Meiling Lu, Lu Zhao, and Ping Zhou.
• Jinan University First Affiliated Hospital, Guangzhou, China.
• Medicine (Baltimore). 2023 Nov 3; 102 (44): e34962e34962.

RationaleBranchiooculofacial syndrome (BOFS) is a rare autosomal dominant disorder with a diverse clinical phenotype. To summarise the clinical characteristics and genetic variations of neonatal-onset BOFS through a case study and literature review.Patient ConcernsA preterm neonate with a very low birth weight, born at a gestational age of 29+3 weeks, exhibited cosmetic abnormalities at a postmenstrual age of 34+6 weeks, including microcleft lip, high arched palate, curved upper lip, low ear position, and ocular hypertelorism. Hence, a genetic test on peripheral blood was carried out.DiagnosesThe genetic testing showed a heterozygous variant of c.724G > A (p.Glu242Lys) in the exon 4 region of the TFAP2A (transcription factor AP-2-α) gene in the short arm of chromosome 6. BOFS was confirmed based on clinical appearance and the genetic result.InterventionsThe patient underwent solely cleft lip repair at the age of 6 months with no further intervention.OutcomesThe infant shows normal growth and development at 1 year of age and subsequent follow-up.LessonsThe characteristic facial features, branchial skin defects, and ocular anomalies are the main clinical manifestations of BOFS with neonatal onset, but the diverse clinical phenotype and variable genetic variants pose certain challenges for clinical diagnosis.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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