Primary Intraosseous Granular Cell Tumor of the Sphenoid and Central Skull Base in a Pediatric Patient.

Background: Granular cell tumors occur in all ages and many anatomic sites. In the craniofacial region, they typically arise in soft tissue, not bone. We present a primary intra-osseous granular cell tumor of the sphenoid and central skull base arising in a 12- year- old girl.

Comparison of Pediatric Otolaryngology clinical and operative case volume among surgical specialties in the COVID-19 pandemic.

Objectives: To report changes in clinical and surgical volume impacting a Pediatric Otolaryngology division one year prior to and following the onset of the COVID-19 pandemic in comparison to five other pediatric surgical subspecialties.

Methods: The number of clinical visits and surgical cases per month for six pediatric surgical specialties (Otolaryngology, Orthopedic Surgery, Urology, Neurosurgery, Plastic Surgery, and General Surgery) for 12 months prior to the pandemic and 12 months following the onset of the pandemic was collected. Poisson regression analysis was performed for the number of visits and cases per season adjusting for specialty, season, staffing changes, and the pandemic to determine adjusted rate ratios (aRR) post-pandemic for the surgical fields compared to Otolaryngology.

Biodiversity into your hands - A call for a virtual global natural history 'metacollection'.

Background: Many scientific disciplines rely on correct taxon delineations and identifications. So does a great part of the general public as well as decision makers. Researchers, students and enthusiastic amateurs often feel frustrated because information about species remains scattered, difficult to access, or difficult to decipher.