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Bronchophony
Gray961.png

Front view of cartilages of larynx, trachea, and bronchi.
ICD-10 R09.8
ICD-9 786.7

Bronchophony, also known as bronchiloquy,[1] is the abnormal transmission of sounds from the lungs or bronchi.

It is a general medical sign detected by auscultation.

Contents

Technique

The patient is requested to repeat a word several times while the physician auscultates symmetrical areas of each lung. The numbers "ninety-nine" or "sixty-six" are traditionally mentioned, though now only as illustrations of profound loss of meaning through translation.

Interpretation

Normally, the sound of the patient's voice becomes less distinct as the auscultation moves peripherally; bronchophony is the phenomenon of the patient's voice remaining loud at the periphery of the lungs or sounding louder than usual over a distinct area of consolidation, such as in pneumonia. This is a valuable tool in physical diagnosis used by medical personnel when auscultating the chest.

Often, the patient does not have to speak for the physician to hear signs of bronchophony. Rather, the normal breath sounds are increased in loudness - referred to by doctors as "increased breath sounds" - over the affected area of the lungs is indicative.

Causes

Bronchophony may be caused by a solidification of lung tissue around the bronchii - which may indicate lung cancer - or by fluid in the alveoli, which may indicate pneumonia. However, it may also have benign causes, such as wide bronchii. As such, it usually an indication for further investigation rather than the main basis of a diagnosis.

Other observations

Other tools used in auscultation include listening for egophony, whispered pectoriloquy, rales, rhonchi or wheezing. percussion is also often used to determine diseases of the chest.

References

External links

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