Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Retrotympanic odontoma

K D McClatchey, M Hakimi, J G Batsakis

The American Journal of Surgical Pathology

|June 1, 1981

Summary

This summary is machine-generated.

This report details a rare retrotympanic odontoma, clinically mimicking cholesteatoma. Histologic analysis revealed a complex odontoma, likely originating from the dental lamina within the middle ear.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Molecular and biomarker analyses of salivary duct carcinomas: comparison with mammary duct carcinoma.

International journal of oncology·2001

Same author

Schneiderian papillomas and carcinomas: a review.

Advances in anatomic pathology·2001

Same author

Sarcomatoid carcinomas of the upper aerodigestive tracts.

Advances in anatomic pathology·2000

Same author

Papillary squamous cell carcinomas of the upper aerodigestive tract: a clinicopathologic and molecular study.

Head & neck·2000

Same author

Mucosal melanomas: a review.

Advances in anatomic pathology·2000

Same author

Proliferative verrucous leukoplakia and its related lesions.

Oral oncology·2000

Same journal

NF2/Merlin Immunohistochemistry Helps Distinguish Collecting Duct Carcinoma From Upper Tract Urothelial Carcinoma.

The American journal of surgical pathology·2026

Same journal

Neuroendocrine Carcinoma of the Gallbladder: Clinicopathologic and Immunohistochemical Analysis of 31 Cases.

The American journal of surgical pathology·2026

Same journal

Papillary Renal Neoplasm With Reverse Polarity Is a Distinct Distal Nephron-Derived Tumor With Unique Methylation Profile.

The American journal of surgical pathology·2026

Same journal

Biallelic ARID1A Alterations: A Promising Novel Biomarker for Risk Stratification and Management in Pediatric Malignant Hepatocellular Tumors.

The American journal of surgical pathology·2026

Same journal

Absent Cyclin D1 Expression in Myeloid Sarcomas Distinguishes From Malignant Histiocytic Neoplasms: When Morphologic Ambiguity is Deceptive.

The American journal of surgical pathology·2026

Same journal

Clinicopathologic Study of 39 Mismatch Repair-deficient Sarcomas Demonstrates Recurrent Histologic Patterns and Supports Universal Screening of Pleomorphic Rhabdomyosarcoma, Uterine Leiomyosarcoma, and Undifferentiated and Unclassified Sarcomas.

The American journal of surgical pathology·2026

See all related articles

Area of Science:

Otorhinolaryngology
Oral and Maxillofacial Pathology
Developmental Biology

Background:

Odontomas are benign tumors of odontogenic origin, typically found in the jaws.
Retrotympanic odontomas are exceptionally rare, with only one previous case reported in the literature.
Cholesteatomas are non-neoplastic ependymal cysts that can cause significant middle ear damage.

Observation:

The second reported case of retrotympanic odontoma presented clinically with features indistinguishable from cholesteatoma.
The tumor was located in the retrotympanic space of the middle ear.
Histopathological examination revealed a complex odontoma composed of haphazardly arranged dental tissues.

Findings:

The complex odontoma contained cementum, dentin, dental follicle, and proliferating dental lamina.

Related Experiment Videos

No recognizable tooth structures were identified within the odontoma.

The origin of the retrotympanic odontoma is postulated to be from the posterior extension of the dental lamina.

Implications:

This case highlights the importance of considering odontogenic tumors in the differential diagnosis of retrotympanic masses.
Understanding the developmental origin of these tumors can aid in diagnosis and management.
Further research into the embryogenesis of dental lamina incorporation into the middle ear may elucidate the pathogenesis of such rare tumors.