Intraaxial brain masses are a significant health problem and present several imaging challenges. The role of imaging is no longer limited to merely providing anatomic details. Sophisticated magnetic resonance (MR) imaging techniques allow insight into such processes as the freedom of water molecule movement, the microvascular integrity and hemodynamic characteristics, and the chemical makeup of certain compounds of masses. The role of the most commonly used advanced MR imaging techniques-perfusion imaging, diffusion-weighted imaging, and MR spectroscopy-in the diagnosis and classification of the most common intraaxial brain tumors in adults is explored. These lesions include primary neoplasms (high- and low-grade), secondary (meta-static) neoplasms, lymphoma, tumefactive demyelinating lesions, abscesses, and encephalitis. Application of a diagnostic algorithm that integrates advanced MR imaging features with conventional MR imaging findings may help the practicing radiologist make a more specific diagnosis for an intraaxial tumor.

An integrated MR imaging-based strategy, which is accurate in differentiation of several intraaxial brain masses, was proposed.

The accuracy of ADC ratios in discriminating brain abscesses from cystic or necrotic neoplasms is very high and can be further improved using T2 rim characteristics.

BACKGROUND AND PURPOSE: KTS is a rare limb overgrowth disorder with slow-flow vascular anomalies. This study examines the presumed association between KTS and spinal AVMs.

Background: Lymphatic malformations (LMs) are rare benign tumors that are at risk of various complications due to their progressive nature and critical locations. Considering the morbidity and mortality of such lesions, different therapeutic methods proposed are surgical excision, sclerotherapy, laser, aspiration, radiotherapy, and most recently sirolimus. Case Reports: We reviewed 3 cases with lymphatic malformation at King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia. Initially placed on various treatment sessions of surgical intervention, sclerotherapy or even both prior to sirolimus, minimal improvement was noted. Sirolimus initiation was associated with significant clinical improvement. However, sirolimus was associated with neutropenia, which was successfully managed by G-CSF. Conclusion: Sirolimus can cause bone marrow suppression due to cumulative effect.