https://www.selleckchem.com/products/peg400.html Extracranial meningioma is very rare with few cases reported, especially in the oral cavity. Its diagnosis is considered a challenge owing to the unusual site of occurrence. We report, to the best of our knowledge, the first case of extra-cranial meningioma as a primary tumor in the hard palate with no detected intracranial extension. A 59-year-old Egyptian female patient presented with a 22-year history of a large painless swelling at the right side of the hard palate, which could not be seen on radiographs. An incisional biopsy was taken and, after assessment with a panel of immunohistochemical markers, the lesion was diagnosed as extracranical grade I mengiothelial meningioma. The patient did not show up for surgical excision and follow-up was not performed because of the lose of contact with the patient. Intraoral meningioma is a rare tumor. Immuohistochemical markers are important for confirming this diagnosis.Cannabidiol (CBD)-containing products are widely marketed as over the counter products, mostly as food supplements, to avoid the strict rules of medicinal products. Side-effects reported in anecdotal consumer reports or during clinical studies were first assumed to be due to hydrolytic conversion of CBD to psychotropic Δ 9-tetrahydrocannabinol (Δ 9-THC) in the stomach after oral consumption. However, research of pure CBD solutions stored in simulated gastric juice or subjected to various storage conditions such as heat and light with specific liquid chromatographic/tandem mass spectrometric (LC/MS/MS) and ultra-high pressure liquid chromatographic/quadrupole time-of-flight mass spectrometric (UPLC-QTOF) analyses was unable to confirm THC formation. Another hypothesis for the side-effects of CBD products may be residual Δ 9-THC concentrations in the products as contamination, because most of them are based on crude hemp extracts containing the full spectrum of cannabinoids besides CBD. Analyses of 67 food pr