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PT  - JOURNAL ARTICLE
AU  - Jun, P.
AU  - Garcia, J.
AU  - Tihan, T.
AU  - McDermott, M.W.
AU  - Cha, S.
TI  - Perfusion MR Imaging of an Intracranial Collision Tumor Confirmed by Image-Guided Biopsy
DP  - 2006 Jan 01
TA  - American Journal of Neuroradiology
PG  - 94--97
VI  - 27
IP  - 1
4099  - http://www.ajnr.org/content/27/1/94.short
4100  - http://www.ajnr.org/content/27/1/94.full
SO  - Am. J. Neuroradiol.2006 Jan 01; 27
AB  - SUMMARY: We present a patient with a new intracranial mass lesion that was initially interpreted as a metastasis on conventional anatomic MR imaging. On dynamic, contrast-enhanced, susceptibility-weighted perfusion MR imaging, however, there were regional hemodynamic differences within the lesion. Image-guided open biopsy targeting these regions uncovered a collision tumor between a typical meningioma and a metastatic breast carcinoma. In cases where conventional anatomic MR imaging is ambiguous, physiology-based neuroimaging methods provide complementary physiologic information useful for discriminating between histologically unique tissue types.