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Extracting the Cochlea from a Human Temporal Bone: A Cadaveric Protocol
Published on: August 18, 2023
Otitis media and mastoiditis in temporal bones of prehistoric Chilean populations. A paleopathological and
Marcos V Goycoolea1, Mario Castro2,3, Marcelo Galvez4
1a Department of Otorhinolaryngology , Clinica Las Condes , Santiago , Chile.
Background:
This study evaluates otitis media in prehistoric populations in northern Chile.
Aims/Objectives:
Determining prevalence of otitis media and diagnostic usefulness of temporal-bone X-rays in skulls.
Materials And Methods:
444 skulls belonging to three groups: prehistoric-coastal (400-1000 AD), prehistoric-highland (400-1000 AD) and Pisagua-Regional Developments (1000-1450 AD). Skulls were evaluated visually and with Schuller's view X-rays. Five skulls diagnosed as having had otitis media, five diagnosed as normal, and one with temporal bone fistula also had a computed tomography (CT).
Results:
Changes suggestive of otitis media were present in Prehistoric-coastal 53.57%; Pisagua-Regional Developments 70.73%; prehistoric-highlands 47.90%. Diagnostic effectiveness of Schuller's view X-rays for assesing middle ear disease was confirmed by CT studies. The case with temporal bone fistula had changes suggestive of mastoiditis and possible post auricular abscess.
Conclusions:
There was a high prevalence of otitis media in prehistoric populations in Chile. The higher prevalence in one group was presumably due to racial factors. Temporal-bone X-rays are effective for massive evaluation of ear disease in skulls. A case of mastoiditis with temporal bone fistula and possible post-auricular abscess is documented.
Significance:
Documenting racial factors in otitis media. Validating X-rays for massive evaluation of otitis media in skulls.
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