Medicine Congenital myasthenic syndromes can result from which of the following abnormalities? A presynaptic abnormality causing decrease in acetylcholine release B synaptic abnormality resulting acetylcholinesterase deficiency C postsynaptic acetylcholine receptor deficiency D all of the above 💡 Explanation Congenital myasthenic syndromes can result from which of the following abnormalities? ✓ Correct Answer: D. all of the above