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 the 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.
The ventricles, sulci, fissures, and cisterns were not widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were normal in shape and outline, with clear retrobulbar structures and symmetrical optic nerves; no abnormal FDG uptake was observed.
The right maxillary sinus showed slight mucosal thickening, but the sinus wall was intact, and FDG uptake was absent.
The nasopharyngeal wall was not thickened; there was no stenosis in the bilateral pharyngeal recesses or Eustachian tube openings; the infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear, and FDG uptake was normal.
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 slightly uneven density; FDG uptake was normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region.
Lung markings were clear and naturally oriented.
A small, solid nodule with a long diameter of approximately 0.3 cm was observed in the posterior segment of the left upper lobe; its shape was regular, its borders were clear, and FDG uptake was normal.
A few linear and flocculent density shadows were also observed in both lungs; FDG uptake was normal.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
Some arterial walls showed calcification.
The liver was enlarged and irregularly shaped, with multiple slightly low-density nodules and masses within the liver parenchyma.
The largest was located in the right lobe, with a cross-sectional size of approximately 13.8 cm 13.6 cm; FDG uptake was unevenly increased (SUVmax = 6.0).
Several low-density nodules with smooth margins were observed within the liver parenchyma; the largest had a long diameter of approximately 0.6 cm, and FDG uptake was absent.
The main portal vein showed no significant widening, and some intrahepatic bile ducts were slightly dilated.
The gallbladder was normal in shape and size, with no thickening of the gallbladder wall and no abnormal FDG uptake in the affected area.
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 was normal in shape, size, density, and FDG uptake.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
The renal pelvis, calyces, and ureters were not widened, and FDG uptake was not significantly abnormal.
Bilateral adrenal glands showed no significant abnormalities on contrast.
The esophagus was not dilated, with no obvious thickening or mass in the esophageal wall, and FDG uptake was not increased.
The stomach was poorly distended, with slight thickening of the gastric wall and a slightly increased FDG uptake (SUVmax = 2.0).
The intestines were poorly distended, with increased FDG uptake in parts of the colon and rectum (SUVmax = 4.2); a small diverticulum was seen in the hepatic flexure of the colon.
The prostate gland appeared normal in shape and size, but contained a high-density lesion with normal FDG uptake.
Bladder distension was poor, with no obvious positive stones observed.
Small amounts of fluid density were present in both scrotums, with absent FDG uptake.
Multiple lymph nodes were observed in the porta hepatis, hepatogastric space, around the pancreas, at the root of the mesentery, and adjacent to the major blood vessels in the retroperitoneum; the largest had a short diameter of approximately 0.8 cm, with increased FDG uptake (SUVmax = 3.2).
A small amount of pelvic effusion was present.
Osteophyte formation was observed at the margins of some vertebral bodies.
L4/5 and L5/S1 intervertebral disc bulges were observed, with normal FDG uptake.
Small, dense bone shadows were present in the left iliac crest, with no significant abnormalities in FDG uptake.

Impression

1. a. Multiple slightly low-density nodules and masses in the liver parenchyma, with unevenly increased FDG metabolism, suggestive of malignancy, with hepatocellular carcinoma being the primary consideration. Please combine AFP and enhanced MRI for comprehensive analysis. b. Metastasis to lymph nodes in the porta hepatis, hepatogastric space, peripancreatic region, mesenteric root, and retroperitoneal perivascular region. A small amount of pelvic effusion.

2. Chronic inflammatory micronodules in the apical-posterior segment of the left upper lobe of the lung. Please follow up with CT. A few post-inflammatory lesions in both lungs. Partial arteriosclerosis.

3. Small liver cysts. Prostatic calcifications. Small amount of hydrocele bilaterally.

4. Chronic gastritis; increased FDG metabolism in parts of the colon and rectum, suggestive of physiological metabolism or chronic inflammatory changes; small diverticulum in the hepatic flexure of the colon. Please follow up with endoscopy for the above.

5. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulges. Small bony island in the left iliac bone.

6. No obvious abnormalities were found on cranial scintigraphy. There is slight inflammation of the right maxillary sinus.

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