Anomalous ossification centers for the inferior articular processes of the lumbar vertebrae.
D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging* / Q000196:embryology; D008297:Male; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging*; D011859:Radiography; D013122:Spinal Diseases / Q000000981:diagnostic imaging*