A 19-year-old male is seen in consultation with complaints of bloody diarrhea (10 bowel movements per day), and weight loss (10 pounds). Physical examination reveals the presence of two circular, 4 cm erythematous lesions on the trunk. Each lesion has an area of necrosis in the center. The abdominal examination reveals mild hypogastric tenderness. The stool is guaiac positive. The most appropriate next diagnostic step includes which of the following?
A. Barium enema
B. Flexible sigmoidoscopy
C. Liver biopsy
D. Chest x-ray
Answer:B
A 19-year-old male is seen in consultation with complaints of bloody diarrhea (10 bowel movements per day), and weight loss (10 pounds). Physical examination reveals the presence of two circular, 4 cm erythematous lesions on the trunk. Each lesion has an area of necrosis in the center. The abdominal examination reveals mild hypogastric tenderness. The stool is guaiac positive. The most appropriate next diagnostic step includes which of the following?
A. Barium enema B. Flexible sigmoidoscopy C. Liver biopsy D. Chest x-ray