Identifier |
MRI-Orbit-with-contrast-768x711 |
Title |
Curtain Sign (Enhanced Ptosis) - Associated Image 2 |
Creator |
Bashaer Aldhahwani, MD; Hong Jiang, MD, PhD |
Affiliation |
(BA) Neuro-ophthalmology Fellow, University of Miami, Bascom Palmer Eye Institute; (HJ) Associate Professor of Clinical Neuro-ophthalmology & Neurology, University of Miami, Department of Neurology, Bascom Palmer Eye Institute |
Subject |
Myasthenia GravIs; Clinical Signs |
Description |
This is a 78-year-old male patient who presented with diplopia, right eyelid ptosis, and ophthalmoplegia. He had severe ptosis OD and pseudo-proptosis (lid retraction) OS at baseline, but when the right eyelid was manually elevated, there was marked enhanced ptosis of the left eyelid (Video). He was diagnosed with seronegative Myasthenia graves with a negative thyroid lab and normal Orbital MRI. He responded well to pyridostigmine. This curtain sign (enhanced ptosis) is one of the signs of myasthenia gravis. Hering's law of reciprocal innervation states that the extraocular muscles receive equal bilateral innervation. Thus, manually elevating the more ptotic lid sends a signal to the less ptotic lid that it can relax and increase ptosis(enhanced ptosis). Associated with video Curtain Sign: https://collections.lib.utah.edu/details?id=2116679 |
Date |
2023-01 |
Language |
eng |
Format |
image/jpeg |
Type |
Image |
Collection |
Neuro-Ophthalmology Virtual Education Library: NOVEL https://NOVEL.utah.edu |
Publisher |
North American Neuro-Ophthalmology Society |
Holding Institution |
Spencer S. Eccles Health Sciences Library, University of Utah |
Rights Management |
Copyright 2023. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s6sn6a6b |
Setname |
ehsl_novel_novel |
ID |
2116681 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6sn6a6b |