This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Drooping eyelids in evening in boy ? 
Select and explain. 
A. Myasthenia gravis, B. Oculomotor nerve palsy, C. Botulism toxin, D. All of above
A: Myasthenia gravis
Answer: A: Myasthenia gravis 
Explanation: Ans. is 'a' i.e., Myasthenia gravis Mvasthenia gravis - Two forms Neonatal transient myasthenia gravis Occurs in infant of myasthenic mother Due to placental transfer of anticholinesterase antibody. Presented as ptosis, weak cry, letahrginess, hypotonea within first few hour of bih. Resolve spontaneously within 4 weeks. Juvenile myasthenia gravis Seen in older children M.C. ocular nuscle involved Diurnal variation seen Usually associated with other autoimmune disorder. Diagnosed by Edrophonium test Repetitive stimulation test Antibody testing Treament Pyridostigmine Steroid Plasma pharesis