Progressive bone resorption after pathological fracture of the femoral neck in Hunter's syndrome.
We report a case of Hunter's syndrome associated with a transverse fracture of the left femoral neck after minor trauma, followed by progressive resorption of the femoral head at 12 years of age and a stress fracture of the right femoral neck at 16 years of age. MRI performed at 15 years of age revealed intra-articular low intensity on T1-weighted and T2-weighted images of both hip joints. The MR finding may represent fibrous synovial thickening, which caused pressure erosion of the femoral neck, resultant pathological and/or stress fractures, and subsequent osteonecrosis with rapid absorption of the femoral head.
Ichikawa
T
T
Department of Radiology, Mizonokuchi Hospital, Teikyo University School of Medicine, Kawasaki, Japan.
Nishimura
G
G
Tsukune
Y
Y
Dezawa
A
A
Miki
H
H
D001862:Bone Resorption / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D002648:Child; D018450:Disease Progression; D005265:Femoral Neck Fractures / Q000150:complications*; D005270:Femur Head / Q000000981:diagnostic imaging / Q000473:pathology; D005598:Fractures, Spontaneous / Q000150:complications*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D016532:Mucopolysaccharidosis II / Q000150:complications*; D011859:Radiography