Limits...
Fibrous Dysplasia of the Clivus

Ly JL - MedPix

View Article: MedPix Image - MedPix Case

Affiliation: Wilford Hall USAF Medical Center

ABSTRACT

Diagnosis: Fibrous Dysplasia of the Clivus

History: 41 year old female with increasing headaches and a family history of aneurysms. A head CT performed at another institution was reportedly unremarkable. MRI/MR angiography of the Circle of Willis was performed at our institution to evaluate for possible aneurysm.

Findings: The MRI/MRA study showed no vascular pathology, but incidentally it was noted that there was a heterogeneous and mildly expanded clivus. Whole body skeletal scintigraphy showed nonspecific increased uptake in the clivus region. Repeat CT of the sinus was performed, revealing a “ground glass appearance”, containing a smaller circumscribed area, which has the appearance of a cystic lesion. Overall the process appeared nonaggressive and was stable on 5 month follow-up CT.

Ddx: •Chordoma* •Chondrosarcoma* •Plasmacystoma •Lymphoma •GCT* •Cavernous hemangioma* •Carcinomas (adenocystic or nasopharyngeal) •Mets* •Paget’s * should have low T1, high T2 signal

Dxhow: Presumptive based on characteristic imaging findings.

Exam: Noncontributory

No MeSH data available.


Fig. 1. Axial noncontrast CT image show a nonaggressive-appearing clivus lesion with a “ground glass” appearance.  There is a sharply-marginated cystic component anteriorly.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=MPX1496&req=5

MPX1496_synpic18546: Fig. 1. Axial noncontrast CT image show a nonaggressive-appearing clivus lesion with a “ground glass” appearance. There is a sharply-marginated cystic component anteriorly.


Fibrous Dysplasia of the Clivus

Ly JL - MedPix

Fig. 1. Axial noncontrast CT image show a nonaggressive-appearing clivus lesion with a “ground glass” appearance.  There is a sharply-marginated cystic component anteriorly.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1496&req=5

MPX1496_synpic18546: Fig. 1. Axial noncontrast CT image show a nonaggressive-appearing clivus lesion with a “ground glass” appearance. There is a sharply-marginated cystic component anteriorly.

View Article: MedPix Image - MedPix Case

Affiliation: Wilford Hall USAF Medical Center

ABSTRACT

Diagnosis: Fibrous Dysplasia of the Clivus

History: 41 year old female with increasing headaches and a family history of aneurysms. A head CT performed at another institution was reportedly unremarkable. MRI/MR angiography of the Circle of Willis was performed at our institution to evaluate for possible aneurysm.

Findings: The MRI/MRA study showed no vascular pathology, but incidentally it was noted that there was a heterogeneous and mildly expanded clivus. Whole body skeletal scintigraphy showed nonspecific increased uptake in the clivus region. Repeat CT of the sinus was performed, revealing a “ground glass appearance”, containing a smaller circumscribed area, which has the appearance of a cystic lesion. Overall the process appeared nonaggressive and was stable on 5 month follow-up CT.

Ddx: •Chordoma* •Chondrosarcoma* •Plasmacystoma •Lymphoma •GCT* •Cavernous hemangioma* •Carcinomas (adenocystic or nasopharyngeal) •Mets* •Paget’s * should have low T1, high T2 signal

Dxhow: Presumptive based on characteristic imaging findings.

Exam: Noncontributory

No MeSH data available.