Oncogenic viruses — MCQs

A 63-year-old man presents to his primary care physician because he has been having headaches and hearing loss. In addition, he says that he has been having difficulty opening his jaw to eat and recurrent middle ear infections. Physical exam reveals enlarged neck lymph nodes and a mass in the nasopharynx. Biopsy of the mass reveals undifferentiated squamous epithelial cells. The organism that is most likely associated with this patient's disease is also associated with which of the following disorders?

A group of scientists is studying the mechanism by which the human papillomavirus (HPV) vaccine confers immunity. They observe that during inoculation of test subjects, certain viral proteins are taken up by the organism's antigen-presenting cells (APCs) and presented on major histocompatibility complex (MHC) class I molecules. Which of the following is the correct term for the process that the scientists are observing in this inoculation?

A 55-year-old Chinese man presents to the office with a complaint of progressive unilateral nasal obstruction for 10 months. Though he was able to tolerate his symptoms at the beginning, he can’t breathe properly through the obstructed nostril anymore. Also, a bloody nasal discharge has started recently through the occluded nostril. He also complains of double vision during the past 2 months but did not pay attention to it until now. Past medical history is insignificant except for occasional sore throats. His vitals include: blood pressure of 120/88 mm Hg, respiratory rate of 14/min, pulse of 88/min, temperature 37.0°C (98.6°F). Blood analysis shows: Hemoglobin 15 g/dL Hematocrit 46% Leukocyte count 15000/mm3 Neutrophils 72% Lymphocytes 25% Monocytes 3% Mean corpuscular volume 95 fL Platelet count 350,000/mm3 Which of the following viral etiology is most likely associated with the development of this patient’s condition?