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High-Speed Human Temporal Bone Sectioning for the Assessment of COVID-19-Associated Middle Ear Pathology

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Metal-Working Fluids Exposure and a Rare Frontoethmoid Lesion.

Shayan Shahidi¹, Abdul Nassimizadeh¹, Ann Sandison²

¹University Hospital Birmingham, Birmingham B15 2TH, UK.

Case Reports in Otolaryngology

|September 10, 2020

Summary

A metalworker developed a rare nasal mass from inhaling "Suds oil," a cutting fluid. This case highlights a novel occupational risk for sinonasal lesions, emphasizing the need for awareness among clinicians and industrial hygienists.

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Area of Science:

Otolaryngology
Occupational Medicine
Pathology

Background:

Sinonasal lesions are often associated with known occupational inhalant exposures.
Diagnosing unusual nasal masses can be clinically and histologically challenging.

Observation:

A middle-aged metalworker presented with unilateral nasal obstruction due to a mass in the right middle meatus.
Surgical excision revealed a granulomatous lesion, posing a diagnostic dilemma.

Findings:

Clinicopathological correlation and expert consultation led to a diagnosis of a pseudotumor.
The lesion was linked to occupational exposure to water-soluble cutting oils, termed "Suds oil".

Implications:

This report describes the first known association between "Suds oil" inhalation and sinonasal pseudotumor formation.
It expands the spectrum of occupational sinonasal diseases and underscores the importance of considering workplace exposures in differential diagnoses.