Uncommon Occurrence of Lip Squamous Cell Carcinoma in a Pediatric Patient.

Although head and neck squamous cell carcinoma represents one of the most common cancers among adults, it is rare in pediatric patients. The purpose of this report is to discuss the case of a 15-year-old male patient referred by his dentist due to a three-month old ulcer in his lower lip. The patient denied tobacco smoking and drinking alcohol, and confirmed that he performed manual labor in a brick yard, being exposed daily to the sun without protection.

Correlation between METAVIR scores and Raman spectroscopy in liver lesions induced by hepatitis C virus: a preliminary study.

The viral hepatitis C is one of the most important causes of chronic hepatic illness worldwide, affecting around 3 % of the world population. Raman spectroscopy has been employed to distinguish normal from hepatic lesions through differences in the spectral features related to the METAVIR score system. This preliminary study evaluated 11 patients with diagnoses of chronic hepatitis C who underwent hepatic biopsies; the biopsies were submitted to near-infrared Raman spectroscopy using a dispersive spectrometer (830-nm wavelength, 300-mW laser power, and 20-s exposure time).