has material basis in germline mutation in ERLIN1 hereditary spastic paraplegia 62 https://github.com/monarch-initiative/mondo/issues/6752 https://www.malacards.org/card/spastic_paraplegia_62_autosomal_recessive Orphanet:401785 ERLIN1 autosomal recessive pure spastic paraplegia SCTID:765045003 Autosomal recessive spastic paraplegia type 62 is a pure or complex form of hereditary spastic paraplegia characterized by an onset in the first decade of life of spastic paraperesis (more prominent in lower than upper extremities) and unsteady gait, as well as increased deep tendon reflexes, amyotrophy, cerebellar ataxia, and flexion contractures of the knees, in some. MONDO:0014302 autosomal recessive pure spastic paraplegia caused by mutation in ERLIN1 OMIM:615681 GARD:0017657 autosomal recessive spastic paraplegia type 62 UMLS:C4284588 SPG62 MEDGEN:924879 spastic paraplegia 62, autosomal recessive DOID:0110813 hereditary spastic paraplegia type 62 pure hereditary spastic paraplegia