A 23-year-old man arrives to the office complaining of lethargy, loss of appetite, and nonspecific abdominal pain over the past two weeks. There has been no nausea, vomiting, changes in bowel habits, dysuria, urine frequency, or hematuria in the patient. He underwent an appendectomy at the age of 15 for acute appendicitis; his medical history is otherwise normal. He does not use smoke or alcohol and has not traveled recently. At the age of 60, his father was diagnosed with colon cancer. Normal bowel sounds and no guarding or rebound discomfort are seen on physical examination. The picture below is an abdominal CT scan taken as part of this patient's examination. The anatomical structure indicated by the arrow originates from which of the following embryologic divisions?

Question

A 23-year-old man arrives to the office complaining of lethargy, loss of appetite, and nonspecific abdominal pain over the past two weeks. There has been no nausea, vomiting, changes in bowel habits, dysuria, urine frequency, or hematuria in the patient. He underwent an appendectomy at the age of 15 for acute appendicitis; his medical history is otherwise normal. He does not use smoke or alcohol and has not traveled recently. At the age of 60, his father was diagnosed with colon cancer. Normal bowel sounds and no guarding or rebound discomfort are seen on physical examination. The picture below is an abdominal CT scan taken as part of this patient's examination.  The anatomical structure indicated by the arrow originates from which of the following embryologic divisions?

Quizplus · Accepted Answer

Eductional Objective: The spleen is a big, wedge-shaped lymphatic organ located in the left abdominal cavity's posterior superior region. During embryonic development, it is generated from mesoderm in the dorsal mesentery.

A 23-Year-Old Man Arrives to the Office Complaining of Lethargy