Whole-body 18F-FDG PET/CT scan in a patient with Gastric 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.
The whole-body scan showed: patchy low-density shadows in the right basal ganglia, approximately 1.3 cm in length, with absent FDG uptake.
A few punctate low-density shadows were seen in the deep bilateral brain regions, with no abnormal FDG metabolism.
A soft tissue nodule, approximately 0.8 1.0 cm in size, was seen in the sellar region, with increased FDG metabolism (SUVmax = 32.5).
The ventricles, sulci, fissures, and cisterns were widened, with symmetrical bilateral ventricles and no midline shift.
Both eyeballs were symmetrical, with no obvious abnormalities.
The left maxillary sinus and left ethmoid sinus mucosa were thickened, with intact sinus walls.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The bilateral pharyngeal recesses were symmetrical, the Eustachian tube openings were not narrowed, the infratemporal fossa and pterygopalatine fossa structures were normal, and the bilateral parapharyngeal spaces were clear with no abnormal FDG uptake.
The bilateral palatine tonsils showed physiological uptake.
The morphology and structure of the laryngopharynx were normal.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with uniform density, and FDG uptake was normal.
No enlarged lymph nodes were seen in the bilateral neck, and FDG metabolism was normal.
Several solid micronodules were seen in both lungs, with a long diameter of approximately 0.2-0.3 cm and clear borders; FDG metabolism was normal.
Linear and punctate lesions were seen in the lower lobes of both lungs; FDG metabolism was normal.
No thickening of the pleura was seen bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No obvious enlarged lymph nodes were seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
Calcification of some arterial walls (including the coronary arteries) was observed.
No dilation of the esophagus was seen, and no obvious thickening or mass was seen in the esophageal wall; FDG uptake was not increased.
The liver was normal in shape and size, with smooth liver margins and no widening of the hepatic fissure; a small cystic lesion was seen in the left lateral lobe of the liver, with a long diameter of approximately 0.4 cm, and FDG uptake was absent.
No obvious widening of the main portal vein was seen, and no dilation of intrahepatic or extrahepatic bile ducts was seen.
The gallbladder showed no abnormalities in shape or size, and the gallbladder wall was not thickened; local FDG uptake was normal.
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 normal.
The spleen showed no abnormalities in shape, size, density, or 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 normal.
Bilateral adrenal glands showed no obvious abnormalities on contrast.
The stomach was poorly filled, with irregular thickening of the stomach wall at the gastric angle and increased FDG metabolism (SUVmax = 5.8).
The intestines were poorly filled, with increased FDG metabolism in some parts of the intestines (SUVmax = 4.6, considered physiological uptake).
The prostate was normal in size, with punctate calcifications; FDG uptake was not abnormally increased.
The bladder was generally full, with no obvious positive stones.
Several small lymph nodes, approximately 0.2-0.4 cm in short diameter, were observed in the hepatogastric space and beside the abdominal aorta; FDG metabolism was normal.
No significant fluid accumulation was observed in the abdomen or pelvis.
The spinal alignment was normal, with some vertebral body margin osteophytes and L4/5 intervertebral disc bulging; FDG uptake was normal.
No abnormal FDG metabolism was observed in the entire skeletal system.

Impression

1. a. Irregular thickening of the gastric wall at the gastric angle, with increased FDG metabolism, consistent with gastric cancer. b. Several small lymph nodes in the hepatogastric space and beside the abdominal aorta, with normal FDG metabolism, suggesting likely reactive hyperplasia; follow-up is recommended to rule out other complications.

2. A mass in the sellar region, with increased FDG metabolism, suggesting a possible pituitary adenoma; metastasis needs to be ruled out. Further enhanced MRI is recommended.

3. Several small, solid, chronic inflammatory nodules in both lungs. Chronic inflammation and old lesions in the lower lobes of both lungs.

4. Small cysts in the liver.

5. Degenerative changes in the spine. L4/5 intervertebral disc bulge.

6. Right basal ganglia softening lesion, a few ischemic lesions in the deep bilateral brain, senile encephalopathy. Chronic inflammation of the left maxillary sinus and left ethmoid 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