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

Under fasting conditions, after intravenous injection of 18F-FDG and rest, a whole-body PET/CT scan was performed with both arms 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 morphology and contours of both eyeballs were normal, the retrobulbar structures were clear, the optic nerves were symmetrical, and no abnormal FDG uptake was observed.
No thickening was observed in the paranasal sinus mucosa, and the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall; there was no narrowing of the bilateral pharyngeal recesses or Eustachian tube openings; the infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear, and no abnormalities in FDG uptake were observed.
The bilateral oropharyngeal walls were slightly thickened, with increased FDG uptake (SUVmax = 8.0); FDG uptake in the laryngopharynx was physiological.
A small, slightly hyperdense nodule, approximately 0.6 cm in length, with clear borders and mildly increased FDG uptake (SUVmax = 2.6), was observed in the right parotid gland.
No abnormal contrast was observed in the left parotid gland or bilateral submandibular glands.
The thyroid gland was normal in shape and size, with slightly heterogeneous density, and no abnormal FDG uptake was observed.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, or submental region.
Multiple solid and subsolid nodules were observed in both lungs, the largest being located in the anterior basal segment of the right lower lobe, approximately 0.3 cm in length, with clear borders and no abnormal FDG uptake.
A small cystic lucent shadow was observed in the posterior segment of the right lower lobe.
Slight thickening of the pleura was observed bilaterally, but no pleural effusion or pneumothorax was observed bilaterally.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
The esophagus was not dilated, and no significant thickening or mass was observed in the esophageal wall; no increased FDG uptake was observed.
The liver showed disproportionate left and right lobes, irregular liver margins, and widened hepatic fissures.
The liver parenchyma exhibited decreased density, with an average CT value of 49 HU.
An irregular, slightly high-density mass/nodule was observed at the junction of the left and right lobes, with a larger cross-sectional area of approximately 5.5 cm 3.9 cm and an average CT value of 51 HU.
The borders were indistinct, and the surrounding parenchyma showed decreased density with increased FDG uptake (SUVmax = 4.1).
No significant widening of the main portal vein or dilation of intrahepatic or extrahepatic bile ducts was observed.
Several lymph nodes were visible in the portacaval and hepatogastric spaces, the largest with a short diameter of approximately 1.0 cm.
Some showed mildly increased FDG uptake (SUVmax = 3.1).
No significant fluid accumulation was observed in the abdomen or pelvis.
The gallbladder was normal in shape and size, with no thickening of the gallbladder wall and no abnormal local FDG uptake.
The pancreas was normal in shape, with no significant abnormal density in the parenchyma, no widening of the main pancreatic duct, and no significant abnormal FDG uptake.
The spleen was enlarged, occupying approximately 10 rib units, with normal density and FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows seen in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is normal.
Bilateral adrenal gland imaging shows no obvious abnormalities.
The stomach is generally full, with no obvious thickening of the stomach wall.
FDG uptake in the cardia and antrum is slightly increased, with SUVmax = 2.8.
The intestines are poorly full, with no obvious thickening or mass in the intestinal wall; FDG uptake is physiological.
The prostate is slightly full, with a transverse diameter of approximately 4.8 cm, containing punctate dense shadows; FDG uptake is normal.
The bladder is poorly full, with no obvious positive stones.
A small amount of fluid density shadow herniated into the left inguinal canal.
FDG uptake in the bones within the collection field is normal.
The spinal alignment is normal, with some vertebral body marginal osteophytes.

Impression

1. a. An irregular, slightly high-density mass or nodule at the junction of the left and right lobes of the liver, accompanied by decreased density of the surrounding parenchyma and increased FDG metabolism, suggestive of malignancy, with hepatocellular carcinoma being the primary consideration. Please combine this with tumor markers for comprehensive analysis. b. Cirrhosis, mild fatty liver. Splenomegaly. c. Portal lymph node metastasis is the primary consideration; reactive hyperplasia of the hepatogastric lymph nodes, metastasis to be ruled out. Please observe closely.

2. Multiple chronic inflammatory micronodules in both lungs, please follow up with CT scans. Right lower lobe posterior segment containing an air sac. Mild thickening of the pleura on both sides.

3. Mild prostatic hyperplasia with calcification. Left inguinal hernia to be ruled out, please correlate with clinical findings.

4. Mildly increased FDG metabolism in part of the gastric wall, suggestive of physiological metabolism or chronic inflammatory changes, please correlate with endoscopic examination.

5. Spinal degenerative changes.

6. No obvious abnormalities seen on cranial scintigraphy. Physiological changes or chronic inflammation of the bilateral oropharyngeal walls. A small nodule in the right parotid gland with mildly increased FDG metabolism is suggestive of reactive lymph node hyperplasia.

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