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intraosseous lipoma of the distal femur confirmed by MRI

Carlson CLC - MedPix

View Article: MedPix Image - MedPix Case

Affiliation: Brooke Army Medical Center

ABSTRACT

Diagnosis: intraosseous lipoma of the distal femur confirmed by MRI

History: 50 year-old female with bilateral knee pain.

Findings: A geographic, lobulated, well marginated, radiolucent, expansile, medulary lesion with a thin rim of sclerosis and central calcific densities is seen on plain radiograph in the posterior aspect of the metadiaphysis of the distal right femur without cortical destruction. T1 and T2 weighted magnetic resonance images show the lesion to have signal isointense to fat and a sclerotic rim.

Ddx: Aneurysmal bone cyst, fibrous dysplasia, simple bone cyst, enchondroma, and bone infarct.

No MeSH data available.


MRI of the right knee reveals a well-defined, eccentric 20x42x42mm elliptical mass in the distal lateral metadiaphysis of the right femur.  The cortex is expanded, but there is no endosteal erosion or irregularity.  Marrow space is within normal limits.  The signal intensity within the mass is isointense to fat on T1 and proton density fat suppressed images consistent with an intraosseous lipoma.
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MPX1022_synpic17357: MRI of the right knee reveals a well-defined, eccentric 20x42x42mm elliptical mass in the distal lateral metadiaphysis of the right femur. The cortex is expanded, but there is no endosteal erosion or irregularity. Marrow space is within normal limits. The signal intensity within the mass is isointense to fat on T1 and proton density fat suppressed images consistent with an intraosseous lipoma.


intraosseous lipoma of the distal femur confirmed by MRI

Carlson CLC - MedPix

MRI of the right knee reveals a well-defined, eccentric 20x42x42mm elliptical mass in the distal lateral metadiaphysis of the right femur.  The cortex is expanded, but there is no endosteal erosion or irregularity.  Marrow space is within normal limits.  The signal intensity within the mass is isointense to fat on T1 and proton density fat suppressed images consistent with an intraosseous lipoma.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1022&req=5

MPX1022_synpic17357: MRI of the right knee reveals a well-defined, eccentric 20x42x42mm elliptical mass in the distal lateral metadiaphysis of the right femur. The cortex is expanded, but there is no endosteal erosion or irregularity. Marrow space is within normal limits. The signal intensity within the mass is isointense to fat on T1 and proton density fat suppressed images consistent with an intraosseous lipoma.

View Article: MedPix Image - MedPix Case

Affiliation: Brooke Army Medical Center

ABSTRACT

Diagnosis: intraosseous lipoma of the distal femur confirmed by MRI

History: 50 year-old female with bilateral knee pain.

Findings: A geographic, lobulated, well marginated, radiolucent, expansile, medulary lesion with a thin rim of sclerosis and central calcific densities is seen on plain radiograph in the posterior aspect of the metadiaphysis of the distal right femur without cortical destruction. T1 and T2 weighted magnetic resonance images show the lesion to have signal isointense to fat and a sclerotic rim.

Ddx: Aneurysmal bone cyst, fibrous dysplasia, simple bone cyst, enchondroma, and bone infarct.

No MeSH data available.