hypophosphatasia prenatal benign hypophosphatasia https://github.com/monarch-initiative/mondo/issues/7693 Orphanet:247638 A very rare form of hypophosphatasia characterized by prenatal skeletal manifestations (limb shortening and bowing) that slowly resolve spontaneously and later may develop into the moderate childhood or adult forms of the disease. UMLS:C5679616 MEDGEN:1842672 GARD:0028044 MONDO:0700424