Gerhardt's sign

Alternative eponyms

Related people

Perkutory phenomenon in larger longitudinal or oval lung caverns containing fluids.

Description

Perkutory phenomenon in larger longitudinal or oval lung caverns containing fluids. Because the secrete mirror is always horisontal, there is a change of percussion note when the patient changes position.

Several authors describe this as being identical to Biermer’s sign, but that is strictly not correct.

Bibliography

  • C. J. A. C. Gerhardt:
    Lehrbuch der Auscultation und Percussion.
    3rd edition, 1876.

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