By Gary M. White, MD

Ross syndrome (RS) is a rare disease characterized by segmental anhidrosis or hypohidrosis, areflexia, and tonic pupils.


A middle-aged woman presented with absence of sweating on the right side of the body for the last seven years with increasing tiredness and heat intolerance for two years. She also had excessive sweating over the left side. On ophthalmological examination, there was sluggish pupillary reaction of the left eye with dilation lag that reacted better to accommodation. Indian J Dermatol 2016;61:348


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