A patient, who appears to be female, is found to be 46,XY. The patient's vagina is very shallow, ending in a blind pouch, and there are palpable masses in the labia. The diagnosis of testicular feminization syndrome is made. Which of the following was most likely present during the early fetal life of this individual?
A patient develops a swollen and tender lymph node in his popliteal fossa. An infected skin lesion in which of the following sites would most likely induce lymphadenopathy in this region?
A 37-year-old female presents to the emergency room with a fever. Chest x-ray shows multiple patchy infiltrates in both lungs. Echocardiography and blood cultures suggest a diagnosis of acute bacterial endocarditis limited to the tricuspid valve. Which of the following is the most probable etiology?
During an intra-abdominal operation, a surgeon asks a medical student to pass his hand toward the head, along the inner aspect of the anterior abdominal wall, slightly to the right of the midline. The reflection of which of the following will eventually stop the movement of the student's hand?
A 1-year-old child develops voluminous watery diarrhea and vomiting . She is brought to the pediatrician by her parents and evaluated, then sent home with instructions for the parents to give the child an electrolyte replacement solution. Which of the following viruses is the most likely cause of the child's diarrhea?
A patient with colorectal cancer develops septicemia complicated by endocarditis. You would expect the blood cultures to grow
A thyroid mass usually moves with swallowing because the thyroid gland is enclosed by which of the following fascia?
White coat hypertension is defined as an elevation of blood pressure resulting from the apprehension associated with visiting the doctor. It is thought that the patient associates the physician's white coat with distressing experiences (e.g., being vaccinated as a child), resulting in transient hypertension. This may be viewed as a physiological manifestation of which of the following phenomena?
A 46-year-old male with non-insulin dependent diabetes presents with a recent onset of nausea, vomiting, abdominal pain, anorexia, and dark-colored urine. Laboratory examination reveals an AST = 136 U/L and an ALT = 142 U/L. Based on these findings, which of the following oral hypoglycemic agents is the patient most likely taking?
A patient with severe atherosclerosis of the external iliac artery and adjacent femoral artery is scheduled for coronary artery bypass surgery. The surgeon decides to use a long, mostly unbranched muscular vein found on the medial aspect of the leg both above and below the knee. Through which of the following structures does this vein pass to eventually join