Fibrous dysplasia of both alae of the sacrum.
A case of monostotic fibrous dysplasia involving both alae of the sacrum is reported. Only 2 cases of monostotic sacral involvement were published previously. The lesion was detected in a 42-year-old man suffering from lumbosacral pain after minimal trauma. Radiographic studies revealed cystic images on both alae of the sacrum, with internal condensations and some liquid contents. A trephine biopsy did not produce enough diagnostic data, and a posterior surgical approach was elected. Curettage and refilling with allograft were performed. The pathologic anatomy study diagnosed a fibrous dysplasia. Two years after surgery, the patient was asymptomatic.
Hidalgo-Ovejero
A M
AM
Orthopaedic Surgery Department, Hospital Virgen Del Camino Y Clínica Ubarmin, Pamplona, Spain.
García-Mata
S
S
Sánchez-Villares
J J
JJ
Martínez-Grande
M
M
D000328:Adult; D001707:Biopsy, Needle; D016025:Bone Transplantation / Q000379:methods; D005358:Fibrous Dysplasia, Monostotic / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D017116:Low Back Pain / Q000209:etiology*; D008279:Magnetic Resonance Imaging; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods*; D010147:Pain Measurement; D012447:Sacrum / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014184:Transplantation, Homologous