Fat emboli and critical illness-associated cerebral microbleeds (CICMs) in a patient with sickle cell disease: Do these 2 entities coexist?

We report the case of a 30-year-old female patient with sickle cell disease presenting with an acute chest syndrome and neurological deterioration. Cerebral magnetic resonance imaging revealed a handful of foci of diffusion restriction and numerous microbleeds with marked involvement of corpus callosum and subcortical white matter, with relative sparing of the cortex and deep white matter. Corpus callosum-predominant and juxtacortical microbleeds have been typically documented in cerebral fat embolism syndrome, but also in the so-called "critical-illness-associated cerebral microbleeds", a recently described entity associated with respiratory failure.

Freehand stereotactic ventricular catheter insertion for ventriculoperitoneal shunts based on individualized radio-anatomical landmarks.

Introduction: The accurate placement of the ventricular catheter (VC) is critical in reducing the incidence of proximal failure of ventriculoperitoneal shunts (VPSs). The standard freehand technique is based on validated external anatomical landmarks but remains associated with a relatively high rate of VC malposition. Already proposed alternative methods have all their specific limitations.

Structural and metabolic brain abnormalities in COVID-19 patients with sudden loss of smell.

Objectives: Sudden loss of smell is a very common symptom of coronavirus disease 19 (COVID-19). This study characterizes the structural and metabolic cerebral correlates of dysosmia in patients with COVID-19.

Methods: Structural brain magnetic resonance imaging (MRI) and positron emission tomography with [18F]-fluorodeoxyglucose (FDG-PET) were prospectively acquired simultaneously on a hybrid PET-MR in 12 patients (2 males, 10 females, mean age: 42.

Fibroma of the tendon sheath of the neck.

Introduction: Fibroma of the tendon sheath (FTS) is a rare benign tumour typically occurring in the extremities, but very rarely involving in the neck.

Case Report: A 22-year-old male presented with a large painless mass of the right oropharynx. Magnetic resonance imaging (MRI) showed a well-circumscribed 7cm lesion in the right prestyloid space.