Christopher Jenn Starr MD, PhD, Presenter: Nothing to Disclose

Gregory Edward Punch MD, Abstract Co-Author: Nothing to Disclose

Jay Starkey MD, Abstract Co-Author: Nothing to Disclose

Soonmee Cha MD, Abstract Co-Author: Nothing to Disclose

- To illustrate five key differential imaging clues which can be extremely helpful in differentiating other dural-based brain masses (i.e., meningioma mimics) from meningiomas. These include:             1) lack of dural tail            2) osseous destruction            3) very dark T2 signal            4) high T2 signal            5) leptomeningeal extension - To illustrate intracranial masses, both benign and malignant, that can closely mimic meningioma on imaging.   - To recognize that a high index of suspicion is a must to be able to differentiate meningioma and its mimics for proper surgical and medical management of patients.  

1) The audience will first be presented with a set of unknown cases and asked to decide whether an unknown mass represent a meningioma or a meningioma mimic.  2)  Using a series of example cases, we will then review a general approach to dural-based brain masses and five key imaging signs that can aid in diagnosing a meningioma mimic. 3) Cases include chondrosarcoma, solitary fibrous tumor, plasmacytoma, lymphoma, schwannoma, metastasis, astroblastoma, and empyema. 4) During the final quiz at the end of the module the audience will be asked to use five imaging signs to help pick out meningioma mimics from a series of unknown cases.

http://abstract.rsna.org/uploads/2014/14016564/14016564_hpmt.pdf

Starr, C, Punch, G, Starkey, J, Cha, S, Dural-based Tumors and Mass-like Lesions: Five Imaging Clues to Diagnose Meningioma Mimics.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14016564.html