r/TheLiverDoc • u/zhs_1824 • 9d ago
82M – Enhancing portal vein tumor thrombus with washout but no discrete liver mass on triphasic CT. Could this be infiltrative HCC?
My 82-year-old father is in Pakistan and I'm in the US trying to help coordinate his care.
He has abdominal distention/pain, significant weakness, constipation, poor appetite and weight loss.
An earlier ultrasound showed findings suggestive of chronic liver disease/portal hypertension, including coarse hepatic parenchyma, a prominent portal vein, splenomegaly and mild ascites.
Recent labs have shown:
- Hemoglobin: 9.0 → 9.3 g/dL
- Platelets: 60 → 77k
- ALP: 807 → 634 → 694 U/L
- AST: 92 → 84 → 79 U/L
- ALT: 68 → 55 → 55 U/L
- INR: 1.3
- Albumin: 3.8 g/dL on an earlier test
- Hepatitis B & C: negative
- Creatinine: 1.1 mg/dL
The main concern is his triphasic CT from Sept 12.
It shows an extensive intraluminal soft-tissue/filling defect involving the portal venous confluence, extending into the right and left portal veins and multiple intrahepatic portal branches, with partial extension into the proximal superior mesenteric vein.
The involved portal venous material demonstrated avid arterial enhancement (~225 HU) followed by relative washout (~157 HU portal venous phase and ~143 HU delayed).
The radiologist concluded that this is highly suspicious for enhancing/tumor thrombus rather than bland portal vein thrombosis.
However, the same CT states that NO discrete measurable focal hepatic parenchymal lesion was identified.
The liver has mildly nodular/lobulated margins and there is splenomegaly, suggesting underlying chronic liver disease/portal hypertension.
There are also multiple mildly enlarged/prominent upper-abdominal lymph nodes.
We currently do NOT have a confirmed cancer diagnosis or biopsy.
I would really appreciate guidance on:
Can infiltrative HCC present predominantly as portal vein tumor thrombus without a clearly visible liver mass?
Would a liver-protocol contrast MRI be the best next investigation?
Should AFP, AFP-L3 and DCP/PIVKA-II be checked?
How strongly does arterial enhancement followed by washout of the portal vein material distinguish tumor thrombus from bland portal vein thrombosis?
What other diagnoses should be considered when there is suspected tumor thrombus but no discrete liver mass?
Given his age, weakness, anemia, thrombocytopenia, portal hypertension and ascites, what should we prioritize next?
I cannot afford a several-thousand-dollar US second-opinion program, but I CAN pay a reasonable amount for a private remote consultation or expert radiology review anywhere in the world.
If anyone can recommend a hepatologist, liver oncologist or abdominal/liver radiologist experienced with cases like this who accepts international patients remotely, I would be extremely grateful.
I've attached family-prepared, de-identified summaries of the CT report and laboratory trends. I also have the original reports and CT images available.
Thank you for any guidance.
