pure mitochondrial myopathy https://www.malacards.org/card/pure_mitochondrial_myopathy SCTID:732245008 Pure mitochondrial myopathy is a rare mitochondrial disease characterized by exclusive skeletal muscle involvement, without clinical evidence of other organ involvement, manifesting with progressive limb weakness, proximal limb muscle atrophy, and eye muscle anomalies (e.g. ocular motility restriction, ptosis). Patients may present with lactic acidosis, diffuse myalgia and overall fatigability (particularly during/after physical activities), dysphagia, and diminished deep tendon reflexes. icd11.foundation:141365898 MEDGEN:1375079 GARD:0020768 Orphanet:254854 MONDO:0016807 UMLS:C4517289 mitochondrial disease