Gustatory sweating with special references to its mechanism

Area of Science:

• Neurology
• Dermatology
• Ophthalmology

Background:

• Gustatory sweating, characterized by facial sweating during gustatory stimuli, is a rare neurological phenomenon.
• Cervical aneurysms can potentially affect adjacent neural structures, leading to diverse clinical manifestations.

Observation:

• A unique case of gustatory sweating is presented, localized to the right side of the face, neck, upper chest, shoulder, and arm.
• Thermoregulatory sweating was significantly reduced in the affected dermatomes.
• Increased sweat gland responsiveness to acetylcholine and elicited axon reflex sweating with nicotine were noted in the affected area.

Findings:

• The gustatory sweating pattern suggests a complex neural pathway involvement.
• The study observed altered sweat gland function, including hypersensitivity to acetylcholine and positive axon reflex response.
• The findings point towards aberrant neural connections, possibly involving collateral sprouting between vagal and sympathetic nerve fibers.

Implications:

• This case provides insights into the neuroanatomy of gustatory sweating and its potential association with vascular abnormalities.
• Understanding these aberrant connections can aid in diagnosing and managing similar neurological conditions.
• The findings highlight the intricate relationship between the autonomic nervous system, vascular structures, and sudomotor function.