Prevalence of pineal cysts in healthy individuals: Emphasis on size, morphology and pineal recess crowding.

The present study aimed to determine prevalence of non-hydrocephalic pineal cysts of different size and morphology in healthy individuals. In a cohort of healthy individuals who as part of research volunteered to undergo magnetic resonance imaging (MRI) of the brain, we performed a systematic search for occurrence of pineal cysts of different sizes, morphology and evidence of crowding of the pineal recess. Degree of crowding in the pineal recess was estimated by the imaging biomarkers anterior-posterior diameter and cyst-tectum-splenium (CTS) ratio at midsagittal MRI.

Evidence for widespread alterations in cortical microstructure after 32 h of sleep deprivation.

Cortical microstructure is influenced by circadian rhythm and sleep deprivation, yet the precise underpinnings of these effects remain unclear. The ratio between T-weighted and T-weighted magnetic resonance images (Tw/Tw ratio) has been linked to myelin levels and dendrite density and may offer novel insight into the intracortical microstructure of the sleep deprived brain. Here, we examined intracortical Tw/Tw ratio in 41 healthy young adults (26 women) before and after 32 h of either sleep deprivation (n = 18) or a normal sleep-wake cycle (n = 23).

Choroid Plexus Tumors in Children: Long-Term Follow-Up of Consecutive Single-Institutional Series of 59 Patients Treated over a Period of 8 Decades (1939-2020).

Objective: To present long-term follow-up of a consecutive single-institutional series of patients treated for choroid plexus tumors over 8 decades.

Methods: From 1939 to 2020, 59 children were treated for choroid plexus tumors. Median age at diagnosis was 1.