please I need a diagnosis
A 49-year man presented to clinic complaining of vague diffuse abdominal pain over the last month . the pain constant dull ache, accompanied by nausea
and abdominal distention, aggravated after eating. He denied radiation to the back or shoulder, vomiting, hematemesis, fever. Although the patient had lost 5 Kg in the last 3 months; he denied any change in appetite.
He had a history of intravenous drug abuse, numerous tattoos, and had multiple sexual partners.