myopathy with hexagonally cross-linked tubular arrays https://www.malacards.org/card/myopathy_with_hexagonally_cross_linked_tubular_arrays Myopathy with hexagonally cross-linked tubular arrays is a rare, congenital, non-dystrophic, mild, slowly progressive, proximal myopathy characterized by exercise intolerance and post-exercise myalgia without rhabdomyolysis, associated with highly organized hexagonally cross-linked tubular arrays in skeletal muscle biopsy. Additional features may include muscle atrophy (or diffuse hypotrophy), myalgia with or without musclar weakness, paresis of truncal and limb-girdle musculature, minimal ptosis, lumbar hyperlordosis, decreased deep tendon reflexes, contractures and pes equinovarus. GARD:0020129 icd11.foundation:1953170361 SCTID:764994007 Orphanet:171889 UMLS:C4707259 MEDGEN:1636081 MONDO:0015755 congenital myopathy