Whole-body 18F-FDG PET/CT scan in a patient with Liver Cancer taken from the PETWB-REP dataset. The following English report (translated from original Chinese) is taken verbatim from the public dataset and has not been modified or otherwise checked for accuracy (see the end for citation).

Findings

After fasting and intravenous injection of 18F-FDG, a whole-body PET/CT scan was performed with both hands raised, from the top of the skull to the upper thigh: The brain morphology and structure were normal, with no abnormal density shadows seen in the brain parenchyma, and no significant abnormalities in FDG uptake.
No widening was observed in the ventricles, sulci, fissures, or cisterns; the ventricles were symmetrical, and there was no midline shift.
The right lens showed decreased density, while the left eyeball morphology and outline were normal, the bilateral retrobulbar structures were clear, and the bilateral optic nerves were symmetrical; no abnormal FDG uptake was observed.
The right sphenoid sinus mucosa was slightly thickened, but the sinus wall was intact, and FDG uptake was absent.
The nasopharyngeal wall was not thickened, and there was no stenosis in the bilateral pharyngeal recesses or Eustachian tube openings.
The infratemporal fossa and pterygopalatine fossa structures were normal, and the bilateral parapharyngeal spaces were clear; no abnormal FDG uptake was observed.
FDG uptake in the oropharynx and laryngopharynx was physiological.
No abnormal contrast was observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with uniform density, and no abnormal FDG uptake was observed.
Bilateral deep cervical interspaces, submandibular and submental lymph nodes were observed, the largest measuring approximately 0.6 cm in short diameter, with some showing increased FDG uptake (SUVmax = 3.2).
Scattered solid nodules were observed in both lungs, with regular shapes and clear borders, measuring approximately 0.3?.8 cm in long diameter.
The largest was located in the anteromedial basal segment of the left lower lobe, with no abnormal FDG uptake.
A few linear and flocculent density shadows were also observed in both lungs, with no abnormal FDG uptake.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
The liver has a slightly irregular shape.
The capsule of the lower segment of the right posterior lobe is relatively full.
A large, irregular, slightly low-density mass is seen in the right lobe, with uneven internal density and indistinct borders, measuring approximately 10.7cm 7.9cm.
FDG uptake is unevenly increased, with an SUVmax of 16.5.
Scattered slightly low-density nodules with indistinct borders are also seen in the liver parenchyma, the largest being approximately 1.7cm in length, with increased FDG uptake and an SUVmax of 6.7.
A punctate calcification is seen in the left medial lobe.
The remaining liver parenchyma shows diffusely slightly decreased density, with a CT value of approximately 48 HU.
The main portal vein is not significantly widened, and there is no dilation of intrahepatic or extrahepatic bile ducts.
Lymph nodes are visible in the porta hepatis, anterior and posterior to the inferior vena cava, in the right prerenal space, and around the peritoneal great vessels, the largest measuring approximately 1.2cm 0.6cm, with increased FDG uptake and an SUVmax of 8.2.
There is a small amount of fluid around the liver and in the pelvic cavity.
The gallbladder appeared normal in shape and size.
A 0.4cm long isodense bulge was observed on the gallbladder fundus, with no abnormal local FDG uptake.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct was not widened, and FDG uptake was not significantly abnormal.
The spleen appeared normal in shape, size, density, and FDG uptake.
Both kidneys were normal in shape and size.
A slightly low-density nodule with indistinct borders and reduced FDG metabolism was observed in the parenchyma of the right kidney, with punctate dense shadows.
The renal pelvis, calyces, and ureters were not widened, and FDG uptake was not significantly abnormal.
The adrenal glands were not significantly abnormal on contrast.
The esophagus was not dilated, and the wall was not significantly thickened or swollen.
FDG uptake was not increased.
The stomach was poorly distended, with slightly thickened walls and increased FDG uptake (SUVmax = 3.3).
The intestines were poorly distended, with no significant thickening or swollen walls.
FDG uptake was physiological.
Increased localized FDG uptake in the anal region, SUVmax=5.1.
Slightly enlarged prostate volume, no obvious abnormal density shadows seen in the parenchyma, FDG uptake normal.
Poor bladder filling, no obvious positive stones seen within.
Punctate calcifications in both scrotums, FDG uptake absent.
Spinal alignment normal, slight cervical lordosis reversed, L4/5 disc bulge, L5/S1 disc herniation, FDG uptake normal.
Punctate dense shadows seen in the left femoral head and right ischium, FDG uptake normal.
A nodule with indistinct borders, approximately 0.8cm long diameter, is seen adjacent to the right 12th rib, with increased FDG uptake, SUVmax=4.6.

Impression

1. a. A large, irregular, slightly low-density mass in the right lobe of the liver, with increased FDG metabolism, suggestive of hepatocellular carcinoma with intrahepatic metastases. Small amount of perihepatic and pelvic effusion. b. Metastasis to lymph nodes in the porta hepatis, anterior and posterior to the inferior vena cava, in the right anterior renal space, and around the peritoneal major vessels is the primary consideration. Metastasis to the right 12th rib. c. Calcification in the left medial lobe of the liver. Mild fatty liver.

2. Scattered chronic inflammatory nodules in both lungs; please follow up with CT scans. A few post-inflammatory lesions in both lungs.

3. Gallbladder fundus polyps. Right renal cyst, right renal calculus; ultrasound follow-up recommended. Mild prostatic hyperplasia. Bilateral scrotal calcifications.

4. Chronic gastritis; hemorrhoidal manifestations. Please follow up with endoscopy for the above.

5. Slight reversal of cervical lordosis. L4/5 disc bulge, L5/S1 disc herniation. Left femoral head and right ischial island.

6. Cranial scintigraphy showed no obvious abnormalities. There was slight inflammation of the right sphenoid sinus. Reactive hyperplasia was observed in the bilateral deep cervical spaces, submandibular, and submental lymph nodes.

7. The right lens showed decreased density, but FDG metabolism was not significantly abnormal. Considering the medical history, postoperative changes are suspected; specialist follow-up is recommended.

This case is from PETWB-REP, a curated dataset of whole-body 18F-FDG PET/CT scans and corresponding radiology reports from 490 patients with a broad spectrum of malignancies. The data were retrospectively collected from patients who underwent clinically indicated whole-body 18F-FDG PET/CT scans at the Shanghai Universal Medical Imaging Diagnostic Center between 2021 and 2024.

License: Creative Commons Attribution 4.0 International (CC BY 4.0)

Citation:
Xue, L., Feng, G., Wenbo, Z., Zhang, Y., Li, L., Wang, S., Peng, L., Peng, S., & Gao, X. (2026). PETWB-REP: A Multi-Cancer Whole-Body FDG PET/CT Dataset with Corresponding Radiology Reports [Data set]. Zenodo. https://doi.org/10.5281/zenodo.18670487