QuestionSBA
QuestionChoice
There may be drooping of the face which appears like ptosis in Bell's palsy. However, it will affect the entire side of the face.
10027814
d
Bell's palsy
QuestionChoice
In Horner's syndrome, only the sympathetic fibres along the oculomotor nerve are affected. In a true oculomotor nerve palsy, there will also be ophthalmoplegia due to the loss of innervation to the extraocular muscles.
10027812
b
Oculomotor nerve palsy
QuestionChoice
Ptosis may be a feature of myasthenia gravis, but it varies throughout the day. There may also be muscle weakness and fatigue which is not mentioned in this case.
10027813
c
Myasthenia gravis
QuestionChoice
The combination of partial ptosis, miosis and oculomotor nerve palsy suggests Horner's syndrome. In this case, it may be due to a pancoast tumour in the apex of the lung. He is cachexic and has a significant smoking history. Horner's syndrome also includes anhydrosis (lack of sweating) on the affected side.
10027811
a
Horner's syndrome
QuestionChoice
More symptoms are going on than just simple age-related vision loss. Miosis and partial ptosis suggest a problem with the cranial nerves. In this case, the sympathetic fibres of CN III.
10027815
e
Age-related vision loss
Concept
Chapter
2693
4339
Horner's syndrome
Topic
132
Respiratory
17960
A 72-year-old man presents complaining of difficulty seeing out of his right eye. On general examination, he appears cachexic. On closer inspection, his right pupil is constricted. There is also a partial ptosis on the right-hand side. He is a lifelong smoker.

What is the most likely diagnosis?
a