Intended for healthcare professionals


Asymmetrical facial flushing and sweating associated with anisocoria

BMJ 2021; 373 doi: (Published 21 April 2021) Cite this as: BMJ 2021;373:n796
  1. Anna Michonidou, ophthalmology registrar1,
  2. Denize Atan, consultant senior lecturer2
  1. 1Department of Ophthalmology, Ippokrateio General Hospital, Thessaloniki, Greece
  2. 2Bristol Eye Hospital, University of Bristol and University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
  1. Correspondence to: A Michonidou amichonidou{at}

This is asymmetrical facial flushing in a man in his 20s with harlequin syndrome (fig 1).

Fig 1

He was referred to the ophthalmology clinic with a six month history of painless anisocoria (right pupil smaller than …

View Full Text

Log in

Log in through your institution


* For online subscription