Imaging Findings in Neurogenic Ptosis
Neurogenic ptosis refers to upper eyelid drooping resulting from disrupted innervation of the eyelid retractor muscles. The differential diagnoses of neurogenic ptosis include oculomotor nerve palsy, Horner’s syndrome, and neuromuscular junction disorders. Oculomotor nerve palsy and Horner’s synd...
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The Korean Society of Radiology
2025-07-01
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| Series: | Journal of the Korean Society of Radiology |
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| Online Access: | https://doi.org/10.3348/jksr.2024.0107 |
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| author | Yiseul Son Eun Ja Lee Nam-Hee Kim So Jeong Lee |
| author_facet | Yiseul Son Eun Ja Lee Nam-Hee Kim So Jeong Lee |
| author_sort | Yiseul Son |
| collection | DOAJ |
| description | Neurogenic ptosis refers to upper eyelid drooping resulting from disrupted innervation of
the eyelid retractor muscles. The differential diagnoses of neurogenic ptosis include oculomotor
nerve palsy, Horner’s syndrome, and neuromuscular junction disorders. Oculomotor
nerve palsy and Horner’s syndrome result from damage to the oculomotor and oculosympathetic
pathways, respectively. The oculomotor nerve pathway has four segments: intraaxial,
subarachnoid, cavernous, and orbital. The oculosympathetic pathway consists of
three orders of neurons extending from the base of the skull to the upper chest. Several
pathologic conditions can affect these neural pathways and cause neurogenic ptosis owing
to the long course of the involved nerves. Therefore, neurogenic ptosis is usually associated
with unique clinical features based on the anatomical location of the pathology. This pictorial
essay provides a deeper understanding of the neural pathways and different diseases
that cause neurogenic ptosis, which can help in determining the location of the pathology. |
| format | Article |
| id | doaj-art-a0ac4cb7fc1f41349e42e3d4a87ad913 |
| institution | Matheson Library |
| issn | 2951-0805 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | The Korean Society of Radiology |
| record_format | Article |
| series | Journal of the Korean Society of Radiology |
| spelling | doaj-art-a0ac4cb7fc1f41349e42e3d4a87ad9132025-07-27T05:41:18ZengThe Korean Society of RadiologyJournal of the Korean Society of Radiology2951-08052025-07-01864483500https://doi.org/10.3348/jksr.2024.0107Imaging Findings in Neurogenic PtosisYiseul SonEun Ja LeeNam-Hee KimSo Jeong LeeNeurogenic ptosis refers to upper eyelid drooping resulting from disrupted innervation of the eyelid retractor muscles. The differential diagnoses of neurogenic ptosis include oculomotor nerve palsy, Horner’s syndrome, and neuromuscular junction disorders. Oculomotor nerve palsy and Horner’s syndrome result from damage to the oculomotor and oculosympathetic pathways, respectively. The oculomotor nerve pathway has four segments: intraaxial, subarachnoid, cavernous, and orbital. The oculosympathetic pathway consists of three orders of neurons extending from the base of the skull to the upper chest. Several pathologic conditions can affect these neural pathways and cause neurogenic ptosis owing to the long course of the involved nerves. Therefore, neurogenic ptosis is usually associated with unique clinical features based on the anatomical location of the pathology. This pictorial essay provides a deeper understanding of the neural pathways and different diseases that cause neurogenic ptosis, which can help in determining the location of the pathology.https://doi.org/10.3348/jksr.2024.0107ptosisoculomotor nerve palsyhorner’s syndromeimaginganatomy |
| spellingShingle | Yiseul Son Eun Ja Lee Nam-Hee Kim So Jeong Lee Imaging Findings in Neurogenic Ptosis Journal of the Korean Society of Radiology ptosis oculomotor nerve palsy horner’s syndrome imaging anatomy |
| title | Imaging Findings in Neurogenic Ptosis |
| title_full | Imaging Findings in Neurogenic Ptosis |
| title_fullStr | Imaging Findings in Neurogenic Ptosis |
| title_full_unstemmed | Imaging Findings in Neurogenic Ptosis |
| title_short | Imaging Findings in Neurogenic Ptosis |
| title_sort | imaging findings in neurogenic ptosis |
| topic | ptosis oculomotor nerve palsy horner’s syndrome imaging anatomy |
| url | https://doi.org/10.3348/jksr.2024.0107 |
| work_keys_str_mv | AT yiseulson imagingfindingsinneurogenicptosis AT eunjalee imagingfindingsinneurogenicptosis AT namheekim imagingfindingsinneurogenicptosis AT sojeonglee imagingfindingsinneurogenicptosis |