A 72-year-old male presents to the office with a one-week ...



A 72-year-old male presents to the office with a one-week history of severe left lower quadrant abdominal pain, constipation, bloating, and abdominal distention. Vital signs reveal a temperature of 37.7°C (99.9°F), a blood pressure of 140/80 mmHg, and a heart rate of 100/min and regular. Lungs are clear to auscultation. Examination of the abdomen reveals diminished bowel sounds, guarding and tenderness in the lower left quadrant, and no palpable masses. Tissue texture abnormalities are palpated at T8-L2 on the left. Complete blood count with differential, serum electrolyte levels, and fecal occult blood testing are all within normal limits. The most likely diagnosis is

A) colon cancer

B) early diverticulitis

C) intestinal obstruction

D) irritable bowel syndrome

E) regional enteritis

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