What could cause my father's fever and abdominal pain?

Hi doctor,

My father is 56 years old. He is a diabetic patient. He has a frequent low-grade fever associated with pain in the right side of the front abdomen, starting just below the lungs. He also had significant weight loss in the past two months. He has also developed a breathing issue suddenly while talking, and gets tired easily after performing minimal tasks. He was recently admitted to a hospital where he underwent all the necessary tests and the USG of the whole abdomen, which reported a SOL of size 42 × 35 mm in the right upper lobe of the liver and no other complexities.

Further, he has taken a CECT scan where the report came as mild pleural thickening and minimal effusion seen on the right posterior costal wall of lower thorax and a SOL of size 3.9 × 3.5 × 4.3 inches which is hypodense in nature having a rim and a centripetal enhancement seen in right lobe of liver devoid of calcification or cystic or necrotic degeneration in the right lobe and the radiologist commented as the nature of the SOL suggestive of hemangioma. He has undergone an AFP (alpha-fetoprotein) test, which gave a reading of 1.28 ng/mL. Also, he had a serum ferritin reading of 864.5 ng/mL. He has also undergone a colonoscopy due to occult blood in stool and was found to be alright. He is discharged from the hospital with some medication. Please guide me with the further procedures, as he is still facing issues with his health.

Kindly guide.