Dr Ray Makar An 18 year-old man presents to the office for evaluation of multiple swellings in his neck. On examination, he has multiple large lymph nodes in his neck. Neurological examination reveals poor coordination on walking. Biopsy of lymph node is positive for lymphoma. He is diagnosed with ataxia-telangiectasia. What is the etiology of this disorder? A- Defective … Read more
Q- Achalasia is a motility disorder of the esophagus characterized by impaired relaxation of the lower esophageal sphincter. Which of the following is the most likely etiology of this condition? A- Adenocarcinoma of the lower esophagus B- Degeneration of the inhibitory neurons of the myenteric plexus C- Obstruction caused by Schatzki rings D- Prolonged intubation … Read more
A 72-year-old man presents to the office for evaluation of new symptoms. He has a history of cancer and takes chemotherapeutic treatment. Now he complains of dyspnea and mild fatigue since last week. Examination reveals temperature of 98.3 F, pulse of 80/min, blood pressure of 140/86 and respiratory rate of 22/min. On chest auscultation, there … Read more