A rare disease of the pediatric pelvis: Van Neck-Odelberg disease

Ischiopubic synchondrosis (IPS) is a hyaline cartilaginous joint between the ischial ramus and inferior pubic ramus. It is a temporary joint and is ossified before adolescence.[1] During the ossification period, enlargement of the ramal ends may cause a tumor-like appearance on radiographs.[2] Although this period is asymptomatic in many cases, tumor, osteomyelitis, stress fracture and osteochondrosis may be considered in the differential diagnosis of patients presenting with groin pain and limping.