All of the following polyps are hamartomatous polyps EXCEPT:

For the patient in the previous question, she will have increased risk for developing which of the following malignancies?

When asked to copy the images on the left, the patient draws the images in the right column. This is consistent with damage of what area of the brain?  

The ASIA Scale “A” means: 

After a 30-day backpacking trip, a patient has pain over the lateral aspect of the shoulder. Upon examination of the patient, the orthotist notes weakness of elbow flexion and shoulder abduction on the same side as the pain. A lesion at which level of the following sites is MOST likely the source of the symptoms?

A patient is unable to abduct the arm past 15 degrees, but the deltoid strength is intact. Which nerve is injured?

A patient describes a progression of weakness over a 6-day period that began with moderate weakness in a glove and stocking distribution and has progressed to difficulty with all movements. The MOST likely diagnosis is: 

Resting tremor, rigidity, and bradykinesia are hallmark signs of: 

The biopsy from esophageal ulceration is shown as following.  What is the most likely cause of the ulceration?

A 21-year-old man has had increasingly voluminous bulky frothy stools for the past years without melena.  Which of the following lab findings is most likely to  be present on examination of his stool?