keratosis obturans

ker·a·to·sis ob·tu'r·ans

an accretion of epithelia in the external auditory canal.
References in periodicals archive ?
2,3) This disease is distinguished from keratosis obturans because cholesteatoma develops after a primary canal bone disorder.
Keratosis obturans and external auditory canal cholesteatoma.
Cholesteatoma of the external auditory canal and keratosis obturans.
The pathologic features of keratosis obturans and cholesteatoma of the external auditory canal.
A 17-year-old boy was seen on routine follow-up a few months after he had undergone a right meatoplasty to treat keratosis obturans.
1) Until 1980, external auditory canal cholesteatoma and keratosis obturans were considered to be different presentations of the same disease.
1) The differential diagnosis of an external auditory canal cholesteatoma (EACC) includes keratosis obturans, postinflammatory medial canal fibrosis, malignant otitis externa, and squamous cell carcinoma.
Table 1 Benign and malignant conditions of the external auditory canal Benign Malignant Cholesteatoma Basal cell carcinoma Eosinophilic granuloma Ceruminous gland tumor Exostosis Melanoma Fibrous dysplasia Metastatic disease Keratosis obturans Soft-tissue sarcoma (children) Neurofibroma Squamous cell carcinoma Osteoma Paraganglioma Stenosis Temporomandibular joint hemiation
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