Related Experiment Video
Updated: Oct 23, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
A unique case of vibroacoustic disease: a tribute to an extraordinary patient
1Occupational Medicine Research Center, Lisbon, Portugal.
Abstract:
This paper describes the case of a patient, Mr. A, who died in 1987. The information provided by Mr. A in life, and his insistence on making a will demanding an autopsy on his death, has given us invaluable data on Vibroacoustic Disease (VAD). Mr. A was an intellectually curious man who researched the medical literature related to his condition, and compared it to his own experience. He would describe all his sensations during his many epileptic seizures. Solely because of the results of Mr. A's autopsy, new avenues of research were initiated. These have led to new concepts and exciting new perspectives on noise-induced extraaural pathology. VAD is today a well-established and easily diagnosed entity. This paper is a tribute to Mr. A, in whose honor we have an on-going commitment to establish VAD as an occupational disease, reimbursable by Worker's Compensation.
Related Concept Videos
Respiratory System Abnormal Finding II: Palpation and Auscultation
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Mitral Stenosis I: Introduction
Cardiovascular System Abnormal Findings II: Auscultation
Abnormal Heart Sounds
Gallops:
Viral Meningitis
Pleural Effusion I: Introduction
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
Respiratory System Abnormal Finding I: Inspection and Percussion
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
