Dear Doctor, I recently received the CT scan report for my dad, and I would appreciate it if you could kindly explain the findings mentioned in the report. Could you provide a detailed explanation of the findings, their implications, and any necessary next steps or recommendations based on the CT scan results? Thank you for your assistance.

Exam Name: CT SCAN OF WHOLE ABDOMEN (3 PHASES, DUAL- Accession No:
PHASE LIVER)
HISTORY: Palpable mass at left flank
CONTRAST ENHANCED MDT SCAN OF THE WHOLE ABDOMEN
COMPARISON: None
FINDINGS:
Lymph nodes:
Multiple enlarged and matted homogeneous enhancing lymph nodes at paraaortic, aortocaval, retrocaval, portocaval, peripancreatic, periportal, hepatogastric, gastrosplenic regions and mesentery, measuring up to 6.6x3.3 cm. Lymphoma is suggested.
Hepatobiliary system:
Liver shows normal size, contour and parenchymal attenuation. No gross space taking lesion is detected. Hepatic vein and portal vein are patent.
No biliary dilatation is noted. Gallbladder is normally distended without opaque gallstone.
Pancreas, spleen and adrenal glands: Unremarkable.
Genitourinary system:
Both kidneys are of normal size, contour and parenchymal enhancement. Multiple bilateral renal cortical cysts are seen, size up to 5.5 cm. No opaque stone, solid renal mass or hydronephrosis is seen.
The urinary bladder is partially distended without stone or mass. Prostate gland is unremarkable.
GI tract:
There is no abnormal dilatation, circumferential wall thickening or mass of the stomach and visualized bowel loops.
Peritoneum: Focal area of fat reticulation with multiple subcentimeter and prominent lymph nodes along mesenteric roots, probably mesenteric panniculitis or lymphoma. Minimal ascites at perihepatic region and pelvic cavity is observed.
Bony structure: There is no worrisome bone destruction.
Included lungs: Moderate amount of bilateral effusion, more on the left. Partially seen LLL collapsed.
IMPRESSION:
Multiple enlarged and matted homogeneous enhancing intraabdominal lymph nodes as described. Lymphoma is suggested.
Focal area of fat reticulation with multiple subcentimeter and prominent lymph nodes along mesenteric roots, probably mesenteric panniculitis or lymphoma.
Multiple bilateral renal cortical cysts, size up to 5.5 cm.
Minimal ascites.
Moderate amount of bilateral effusion, more on the left.
Partially seen LLL collapsed.
CXR PA UPRIGHT
No definite pulmonary infiltration or detectable pulmonary nodule is seen.
Diaphragm and both costophrenic angles are clear.
Heart and great vessels are intact.
Bony structures are unremarkable.
IMPRESSION: No evidence of active pulmonary disease in this study.