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Published on: December 15, 2023
Radiologic evaluation of the ear anatomy in pediatric cholesteatoma
Evangelos N Manolis1, Dimitrios K Filippou, Constantinos Tsoumakas
1Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, USA. ENManolis@yahoo.gr
Insights
Computed tomography (CT) effectively identifies middle ear cholesteatoma in children. High-resolution CT scans reveal characteristic soft-tissue densities and bony changes, aiding early diagnosis and surgical planning.
Area of Science:
- Radiology
- Pediatric Otolaryngology
- Medical Imaging
Background:
- Middle ear cholesteatoma is a common pediatric condition requiring accurate diagnosis.
- Computed tomography (CT) is a key imaging modality for evaluating middle ear pathology.
Purpose of the Study:
- To describe computed tomography (CT) findings in pediatric patients with middle ear cholesteatoma.
- To correlate CT findings with surgical observations in acquired and congenital cholesteatoma.
Main Methods:
- Retrospective analysis of CT scans from 32 pediatric patients (3-14 years) with surgically confirmed cholesteatoma.
- Axial and coronal 1- or 2-mm sections of temporal bones were reviewed.
Main Results:
- Acquired cholesteatoma (30 cases) showed diffuse soft-tissue density (63.3%), mimicking inflammation (20%), or localized mass (26.7%).
- Ossicular erosion (76.7%), abnormal pneumatization (63.3%), and middle ear/mastoid enlargement (26.7%) were frequent in acquired cholesteatoma.
- Congenital cholesteatoma (2 cases) presented as soft-tissue mass; one had a semicircular canal fistula.
Conclusions:
- High-resolution CT is crucial for early diagnosis of pediatric middle ear cholesteatoma.
- CT assessment of anatomic abnormalities and disease extent guides surgical management.
- CT findings aid in differentiating acquired from congenital cholesteatoma and identifying complications.
Abstract:
The aim of the study was to describe computed tomography (CT) findings in middle ear cholesteatoma in pediatric patients. A cohort of 32 children with cholesteatoma (3-14 years old) entered the study. From them, 30 presented acquired cholesteatoma (AC), and 2 presented congenital cholesteatoma. All of the children were investigated using CT before surgery of the middle ear and mastoid. Computed tomography was performed with 1- or 2-mm axial and coronal sections of both temporal bones. Nineteen children with AC (63.3%) revealed a diffuse soft-tissue density isodense with muscle, whereas in 6 of them, the mass mimicked inflammation. The remaining revealed localized soft-tissue mass with partially lobulated contour. In AC, ossicular erosion was detected in 23 cases (76.7%), abnormal pneumatization in 19 cases (63.3%), and erosion-blunting of spur and enlargement of middle ear or mastoid in 8 cases (26.7%). The 2 congenital cholesteatomas revealed soft-tissue mass with polypoid densities, while a semicircular canal fistula was detected in one of them. High-resolution CT facilitates early diagnosis and appropriate treatment of pediatric cholesteatoma by assessing the anatomic abnormalities and the extent of disease, which are crucial in middle ear and mastoid surgery.
