Single Nucleotide Polymorphisms in Chemosensory Pathway Genes GNB3, TAS2R19, and TAS2R38 Are Associated with Chronic Rhinosinusitis.

Background: Chronic rhinosinusitis (CRS) is a multifaceted disease with a significant genetic component. The importance of taste receptor signaling has recently been highlighted in CRS; single nucleotide polymorphisms (SNPs) of bitter tastant-responsive G-protein-coupled receptors have been linked with CRS and with altered innate immune responses to multiple bacterially derived signals.

Objective: To determine in CRS the frequency of six SNPs in genes with known bitter tastant signaling function.

Metastatic Renal Cell Carcinoma of the Head and Neck: A Case Series.

Background: Renal cell carcinoma (RCC) accounts for over 80% of malignant tumors arising from the kidney. However, metastatic RCC to the head and neck is a relatively rare entity.

Case Presentation: We describe three patients with metastatic RCC to the head and neck with the involvement of the parapharyngeal space, the level V region of the neck, and the maxillary sinus.