H61.3

Clinical Causes: Chronic or recurrent infections leading to inflammation and scarring Repeated trauma or injury to the ear canal Prolonged use of ear devices or insertions that cause mechanical damage Chronic dermatitis or skin conditions affecting the ear canal skin Previous surgical procedures or ear canal procedures Presence of tumors or abnormal growths within the ear canal Collapse of the external ear canal, often associated with structural weakness or aging

Key Symptoms: Reduced or muffled hearing sensation Sense of fullness or pressure within the ear Discomfort or mild pain in the ear A feeling of blockage or obstruction Possible recurrent ear infections due to impaired drainage Visible narrowing or deformity of the ear canal upon examination Possible discharge if infection or inflammation is present

Diagnosis Path: Diagnosis involves a comprehensive examination of the ear by a healthcare professional. Techniques include otoscopy, which allows visual assessment of the ear canal, revealing narrowing or collapse. Audiometric tests may be used to evaluate hearing loss. Additional imaging studies like CT scans can help assess the extent and underlying causes of stenosis or collapse, especially if structural abnormalities or tumors are suspected. A detailed medical history is also crucial to identify potential contributing factors such as prior trauma, infections, or surgeries.

Treatment Protocols: Management of acquired stenosis of the external ear canal depends on the severity and underlying cause. Treatment options include: - **Medical therapy:** Addressing infections with topical or systemic antibiotics or antifungal agents; managing skin conditions with appropriate medications. - **Surgical intervention:** Procedures to widen the ear canal (meatoplasty) or reconstruct deformities; cases involving severe stenosis or collapse may require complex reconstructive surgery. - **Monitoring:** Regular follow-up to assess for recurrence or progression, especially if structural weakness contributes to canal collapse. - **Protective measures:** Avoiding trauma or injury to the ear; using ear protection if exposed to loud noises or potential hazards. It is important to seek advice from a healthcare professional to determine the most suitable approach based on individual circumstances.