Belatik Hamza¹*, Zaimi Soukaina¹, Hicham Atiffi², Nabil Touihem² and Mounir Hmidi²

¹ENT Department, 5th CMC, Errachidia, Morocco
²ENT Department, HMMI, Meknes, Morocco

*Corresponding Author: Belatik Hamza, ENT Department, 5th CMC, Errachidia, Morocco.

Received: December 22, 2025; Published: January 06, 2026

Abstract

Introduction: Congenital agenesis of the stapes is a rare cause of conductive hearing loss. Computed tomography plays an essential role in the positive diagnosis and in the assessment of associated malformations.

Case Report: We report the case of left stapes agenesis revealed by congenital conductive hearing loss in a 3-year-old girl.

Discussion: Congenital agenesis of the stapes is a rare congenital malformation. It is often associated with malformations of the facial nerve canal and the ossicular chain. Computed tomography allows a detailed assessment of the inner ear and middle ear, providing a non-invasive alternative to exploratory tympanotomy. Treatment is based on bone-conduction hearing devices or surgical reconstruction.

Conclusion: Computed tomography plays a key role in the diagnosis of stapes agenesis and associated malformations, allowing better therapeutic planning.

Keywords: Congenital Agenesis; Computed Tomography

References

1. Thomeer H., et al. “Congenital oval or round window anomaly with or without abnormal facial nerve course: surgical results for 15 ears”. Otology and Neurotology 33 (2012): 779-784.
2. Teunissen EB and Cremers WR. “Classification of congenital middle ear anomalies. Report on 144 ears”. Annals of Otology, Rhinology and Laryngology 102 (1993): 606-612.
3. Zeifer B., et al. “Congenital absence of the oval window: radiologic diagnosis and associated anomalies”. AJNR American Journal of Neuroradiology 21 (2000): 322-327.
4. Khoo HW., et al. “High Resolution Computed Tomography (HRCT) Imaging Findings of Oval Window Atresia with Surgical Correlation”. Annals Academy of Medicine, Singapore 49 (2020): 346-353.

Citation

Citation: Belatik Hamza., et al. “Congenital Agenesis of the Stapes: A Rare Cause of Conductive Hearing Loss".Acta Scientific Otolaryngology 8.2 (2026): 02-05.

Copyright

Copyright: © 2026 Belatik Hamza., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.