Question:

Regarding the imaging characteristics of angiolipomas, which of the following is incorrect?
1. They usually do not enhance following the administration of IV contrast.
2. They can be hypointense to muscle on T1-weighted imaging.
3. They can be isointense to muscle on T1-weighted imaging.
4. They can be hyperintense to muscle on T1-weighted imaging.
5. They fat contain discrete fat components.





Answer:

The correct answer for the question "Regarding the imaging characteristics of angiolipomas, which of the following is incorrect?" is:

1. They usually do not enhance following the administration of IV contrast.



Explanation
1. Angiolipomas are vascular masses and consequently demonstrate enhancement following the administration of IV contrast. [Angiolipomas enhance following intravenous contrast administration].

2. [Despite the high lipid content of angiolipomas, their T1-weighted MRI appearances can vary from hyperintense, through isointense, to hypointense, depending on their associated vascular density].

3. [Despite the high lipid content of angiolipomas, their T1-weighted MRI appearances can vary from hyperintense, through isointense, to hypointense, depending on their associated vascular density].

4. [Despite the high lipid content of angiolipomas, their T1-weighted MRI appearances can vary from hyperintense, through isointense, to hypointense, depending on their associated vascular density].

5. Angiolipoma have high lipid contents. This may be manifest as discrete fat on imaging. [angiolipomas can contain discrete low attenuation material on CT consistent with fat].



From the manuscript:
A rare cause of neural foraminal widening
Radiology Case. 2012 Dec; 6(12):1-8


This article belongs to the Neuro section.




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From the manuscript

A rare cause of neural foraminal widening

Free full text article: A rare cause of neural foraminal widening

Abstract
The differential diagnosis for lesions causing neural foraminal widening is vast. The majority are solitary benign peripheral nerve sheath tumours, such as neurofibromas or schwannomas. We present a case of a rare cause of neural foraminal expansion secondary to a posterior thoracic extradural angiolipoma. We describe the presence of chemical shift artefact on post gadolinium T1-weighted imaging as indirect evidence of a fatty component. This potentially important diagnostic sign may raise the suspicion of angiolipoma, especially in an isointense or hypointense dumbbell lesion on T1-weighted imaging, and has not been described previously in this context. Accurate radiological diagnosis of an angiolipoma is important to reduce unexpected haemorrhagic complications from biopsy or resection of the lesion.






References



1. Kivrak AS, Koc O, Emlik D, Kiresi D, Odev K, Kalkan E. Differential diagnosis of dumbbell lesions associated with spinal neural foraminal widening: Imaging features. Eur J Radiol 2009 Jul; 71(1): 29-41
Get full text
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2. Cerofolini E, Landi A, DeSantis G, Maiorana A, Canossi G, Romagnoli R. MR of benign peripheral nerve sheath tumors. J Comput Assist Tomogr 1991 Jul-Aug; 15(4):593-597
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


3. Zibis AH, Markonis A, Karantanas AH. Unusual causes of spinal foraminal widening. Eur Radiol
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


4. Preul MC, Leblanc R, Tampieri D, Robitaille Y, Pokrupa R. Spinal angiolipomas: report of three cases. J Neurosurg 1993 Feb; 78(2): 280-6
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


5. Labram EK, el-Shunnar K, Hilton DA, Robertson NJ. Revisited: spinal angiolipoma - three additional cases. Br J Neurosurg 1999 Feb; 13(1): 25-9
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


6. Gelabert-Gonzalez M, Garcia-Allut A. Spinal extradural angiolipoma: report of two cases and review of the literature. Eur Spine J 2009 Mar; 18(3): 324-35
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


7. Guegan Y, Fardoun R, Launois B, Pecker J. Spinal cord compression by extradural fat after prolonged corticosteroid therapy. J Neurosurg 1982 Feb; 56(2): 267-9
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


8. Fourney DR, Tong KA, Macaulay RJ, Griebel RW. Spinal angiolipoma. Can J Neurol Sci 2001 Feb; 28(1): 82-8
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


9. Higuchi T, Taki , Nakajima K, Kinuya S, Nonomura A, Tsuchiya H, Bunko H, Namura M, Tonami N. Differentiation of soft tissue haemangioma by 201TI scintigraphy. Nucl Med Commun 2003 Mar; 24(3): 327-30
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


10. Rivkind A, Marqulies JY, Lebensart P, Sherman Y, Robin GC. Anterior approach for removal of spinal angiolipoma. A case report Spine
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine


11. Taylor J, Harries BJ, Schurr PH. Extrathecal haemangiolipomas of the spinal canal. Br J Surg 1951 Jul; 39(153): 1-7
Get full text
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12. Schiffer J, Gilboa Y, Ariazoroff A. Epidural angiolipoma producing compression of the cauda equine. Neurochirurgia (Stuttg) 1980 May; 23(3): 117-20
Get full text
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13. Bucy PC, Ritchey H. Klippel-Feil`s syndrome associated with compression of the spinal cord by an extradural haemangiolipoma. J Neurosurg 1947 Sep; 4(5): 476-81
Get full text
Find similar topics on Read this article on PubMed :: Find similar articles on Google scholarScholar :: Search for similar topics with the Radiology specific search engine Radiology search engine




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