To present a spectrum of varied,
typical and atypical,
imaging features of both monostotic and polyostotic form of Fibrous Dysplasia (FD),
with special interest in the differential diagnosis.
Introduction FD is a rare,
regarding benign intramedullary abnormalities either presenting as an isolated skeletal finding (monostotic type,
accounting for 70-80% of cases,
or affecting multiple bones (polyostotic type,
P-FD can occasionally exhibit a monomelic pattern.
The ribs are one of the most common sites of M-FD,
while the femur and tibia are most commonly involved in P-FD.
Craniofacial FD affects only the skull and facial bones,
Imaging findings OR Procedure Details
A retrospective review of 15 patients with FD and 1 patient with OFD was conducted.
Radiographs were available in 11 patients,
MRI in 5 patients and CT in 3 patients. M-FD was found in 11 patients,
involving the pelvic bones (3 patients),
the humerus (2 patients),
the femur (2 patients),
the fascial bones (2 patients),
the tibia (1 patient),
and the ribs (1 patient) [Fig.
4]. P-FD was found in 4 patients.
In one of them,
the ipsilateral femur and tibia were affected whereas in the...
FD is usually asymptomatic and can appear as an incidental finding with typical radiographic features.
Though benign as a rule,
it can rarely display locally aggressive behavior,
Comorbidities are common in P-FD and should be excluded by the work-up process.
Fibrous Dysplasia: Clinical review and therapeutic management. Medical Clinics (Barcelona),
2017 (article in press). 2.
Fibrous Dysplasia with Massive Cartilaginous Differentiation (Fibrocartilaginous Dysplasia) in the Proximal Femur: A Case Report and Review of the...