Kata Kunci

Abstrak

Background: Myasthenia gravis (MG) is an antibody-mediated autoimmune disease affecting neuromuscular synaptic transmission. The clinical signs of myasthenia gravis include weakness that affects vision (ocular), bulbar, and proximal skeletal muscles. Myasthenia gravis can also resemble vascular disorders or infectious diseases. Case: A 48-year-old Balinese male patient presented to the emergency department of Prof I.G.N.G Ngoerah Central General Hospital with complaints of shortness of breath, which had been occurring for the past month. The shortness of breath improved slightly with rest. Another complaint was right eyelid ptosis, particularly during the daytime, which improved in the afternoon. The patient denied any weight loss or history of malignancy. Approximately three months ago, the patient had fallen from a motorcycle and experienced numbness in his right cheek, which persisted. He had been receiving treatment at the District General Hospital and was diagnosed with myasthenia gravis and prescribed Mestinon. A CT scan of the head revealed an acute infarction of the left pons accompanied by a suspicion of acute meningoencephalitis. Discussion: The results of the repetitive nerve stimulation (RNS) test in this patient supported the diagnosis of myasthenia gravis, indicating a neuromuscular junction lesion. Conclusion: Myasthenia gravis is a nervous system disorder with various manifestations. Thorough clinical and supporting examinations are essential for confirming the diagnosis.