MRI CAMRT: Pathology Exam Questions With Accurate Solved Answers Latest Update 2024/2025

Abscess (brain): definition and imaging appearance on T1, T2, CE, and DWI - ACCURATE ANSWER-Collection of pus. Mass effect and extensive surrounding edema. T1: hypointense to grey matter T2: hyperintense to grey matter with surrounding edema. CE MRI: ring-like enhancement DWI shows an abscess having a high DWI signal with corresponding low signal on the ADC map. Avascular Necrosis (AVN) - ACCURATE ANSWER-T1: necrotic area is hypointense T2: hyperintense bone marrow edema Ischemic area remains hypointense. Double line sign. Hypointense outer line due to sclerosis and fibrosis and a hyperintense inner line. Acoustic neuroma: AKA? Benign or malignant? Appearance on T1, T2, CE? - ACCURATE ANSWER-AKA vestibular schwanoma Benign tumour of schwann cells covering the vestibule portion of the 8th cranial nerve (vestibulocochlear nerve). Seen in the cerebellopontine angle cistern T1: isointense to slightly hypointense T1 CE: hyperintense enhancement T2: Hyperintence