Siponimod-associated cystoid macular edema without known risk factors.

Purpose: This case report highlights the importance of monitoring ocular health for patients starting on siponimod treatment, a sphingosine-1-phosphate receptor modulator, for relapsing-remitting multiple sclerosis. By showing how medication adverse events present in patients, we can revisit the current guidelines on ophthalmic evaluation recommendations.

Observations: We report a 60-year-old patient who presented with unilateral blurry vision upon initiating siponimod therapy for the treatment of relapsing-remitting multiple sclerosis.

Assessing the Learning Environment Perception Among Medical Students at a Tertiary Referral Hospital in Saudi Arabia.

Objective: To assess the perception of medical students at Alfaisal University College of Medicine (AUCOM) of their learning environment at a referral-based tertiary hospital in Riyadh, Saudi Arabia.

Methods: The validated Dundee Ready Educational Environment Measure (DREEM) questionnaire was administered to all year 4 and year 5 students during the academic year 2020-2021. Scores were analyzed using the descriptors provided by the questionnaire developers and compared across different students' cohorts using SPSS.

Diffuse Idiopathic Pulmonary Neuroendocrine Cell Hyperplasia: A Blanked Out Pulmonary Neuroendocrine Tumor.

Introduction: Lung neuroendocrine tumors (NETs) are a rare type of pulmonary tumor and represent approximately 2% of all lung cancers. The prevalence of lung NETs is increasing, which may be due to improved diagnostic techniques for asymptomatic tumors. Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is a rare and underdiagnosed disease that falls under the spectrum of NETs.