The VoltoliniHeryng sign, also known as the negative fistula sign, is a medical term used to describe a specific symptom related to ear diseases. When a patient experiences a spontaneous cerebrospinal fluid leak from their ear, they may display this sign. It appears as a clear liquid draining from the external ear canal, accompanied by a reduction in pressure inside the ear. Synonyms for this sign include negative fistula sign, cerebrospinal fluid otorrhea, and spontaneous otorrhea. These terms are interchangeable and are often used by medical professionals to describe the same condition. Recognizing and promptly addressing this symptom is crucial for proper diagnosis and treatment of ear diseases.