title: Co-existing pathologies.
mesh_terms: D002111:Calcaneus; D002648:Child; D003937:Diagnosis, Differential; D005534:Foot Diseases / Q000175:diagnosis; D005921:Glomerulonephritis / Q000150:complications* / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D010007:Osteochondritis / Q000150:complications* / Q000175:diagnosis; D013290:Streptococcal Infections / Q000150:complications* / Q000175:diagnosis