has phenotype has symptom disease has basis in disease has location monogenic disease hypochondrogenesis DOID:0080044 disease_ontology An osteochondrodysplasia that has_material_basis_in a mutation in the COL2A1 gene which affects bone growth and results_in a small body, hydrops fetalis, and abnormal ossification located_in vertebral column or located_in pelvis. The disease has_symptom enlarged abdomen. MESH:C563007 osteochondrodysplasia Hydrops fetalis gene bloating vertebral column bony pelvis