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Monostotic Fibrous Dysplasia

Lopez EJL - MedPix (2009)

View Article: MedPix Image - MedPix Case

Affiliation: Naval Medical Center San Diego

ABSTRACT

Diagnosis: Monostotic Fibrous Dysplasia

History: A 29-year-old man with injury to right shoulder while lifting weights. Clinically diagnosed with rotator cuff biceps tendinitis.

Findings: • Plain film RUE - Endjavascript:void(null);osteal scalloping and lucency within the mid to proximal shaft of the right humerus. • Plain MR of the right shoulder - Multiloculated cystic lesion of proximal humerous with some solid component and associated endosteal remodeling without evidence of cortical breakthru. • MRI of the right humerus w/ contrast - Multifocal, predominantly cystic multiloculated circumscribed bony lesions spare the humeral epiphyses, the largest proximal metaphyseal lesion measuring approximately 5.2 cm in its maximum diameter. The lesions exhibit predominantly peripheral enhancement and a mild increase in central T1 intensity suggesting a proteinaceous/fibrous matrix. No overlying cortical disruption is seen in the setting of grossly stable associated endosteal scalloping. No circumferential soft tissue abnormality is identified.

Ddx: • polyostotic fibrous dysplasia • enchondroma • Other differential diagnoses include: Eosinophilic Granuloma, Fibrous Cortical Defect, Nonossifying Fibroma, Giant Cell Tumor, Neurofibromatosis Type 1, Paget Disease, Hemangioma, Hyperparathyroidism, Metastasis

Dxhow: Characteristic imaging features

Exam: Rotator cuff biceps tendinitis. Incidental note of mid proximal humerus endosteal scalloping on plain film evaluation - Now, referred for evaluation of the right shoulder with MRI.

No MeSH data available.


Scapular Y view. Endosteal scalloping and lucency within the mid to proximal shaft of the right humerous.
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MPX1781_synpic50639: Scapular Y view. Endosteal scalloping and lucency within the mid to proximal shaft of the right humerous.


Monostotic Fibrous Dysplasia

Lopez EJL - MedPix (2009)

Scapular Y view. Endosteal scalloping and lucency within the mid to proximal shaft of the right humerous.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1781&req=5

MPX1781_synpic50639: Scapular Y view. Endosteal scalloping and lucency within the mid to proximal shaft of the right humerous.

View Article: MedPix Image - MedPix Case

Affiliation: Naval Medical Center San Diego

ABSTRACT

Diagnosis: Monostotic Fibrous Dysplasia

History: A 29-year-old man with injury to right shoulder while lifting weights. Clinically diagnosed with rotator cuff biceps tendinitis.

Findings: • Plain film RUE - Endjavascript:void(null);osteal scalloping and lucency within the mid to proximal shaft of the right humerus. • Plain MR of the right shoulder - Multiloculated cystic lesion of proximal humerous with some solid component and associated endosteal remodeling without evidence of cortical breakthru. • MRI of the right humerus w/ contrast - Multifocal, predominantly cystic multiloculated circumscribed bony lesions spare the humeral epiphyses, the largest proximal metaphyseal lesion measuring approximately 5.2 cm in its maximum diameter. The lesions exhibit predominantly peripheral enhancement and a mild increase in central T1 intensity suggesting a proteinaceous/fibrous matrix. No overlying cortical disruption is seen in the setting of grossly stable associated endosteal scalloping. No circumferential soft tissue abnormality is identified.

Ddx: • polyostotic fibrous dysplasia • enchondroma • Other differential diagnoses include: Eosinophilic Granuloma, Fibrous Cortical Defect, Nonossifying Fibroma, Giant Cell Tumor, Neurofibromatosis Type 1, Paget Disease, Hemangioma, Hyperparathyroidism, Metastasis

Dxhow: Characteristic imaging features

Exam: Rotator cuff biceps tendinitis. Incidental note of mid proximal humerus endosteal scalloping on plain film evaluation - Now, referred for evaluation of the right shoulder with MRI.

No MeSH data available.