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 tomographic images showed: The brain morphology and structure were normal; no abnormal density shadows were seen in the brain parenchyma, and FDG uptake was normal.
No widening was observed in the ventricles, sulci, fissures, or cisterns; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and without obvious abnormalities.
No thickening was observed in the paranasal sinus mucosa, and the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall, and FDG uptake was normal.
The pharyngeal recesses were symmetrical, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, and the bilateral parapharyngeal spaces were clear with normal FDG uptake.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The oropharynx and laryngopharynx showed no abnormalities in morphology and structure.
The thyroid gland is normal in shape and size, with uneven density.
Several low-density nodules are present in both lobes, the largest being approximately 0.8 cm in long diameter.
FDG uptake is normal.
Several lymph nodes are visible in the bilateral deep cervical spaces, the largest being approximately 0.9 cm in short diameter.
FDG uptake is increased, SUVmax = 6.4.
The lung markings are clear.
Solid nodules with clear borders, approximately 0.2 cm in diameter, are present in the apical-posterior segment of the left upper lobe and the posterior segment of the right lower lobe.
FDG uptake is normal.
No pleural thickening is observed bilaterally.
There is no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes are seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette is normal.
A few soft tissue density shadows are present in the anterior mediastinum.
FDG metabolism is normal.
No abnormal density shadows are seen in the bilateral breasts.
FDG metabolism is normal.
No esophageal dilation, no obvious thickening or mass in the esophageal wall, and no increased FDG uptake.
No obvious abnormalities in liver shape and size, smooth liver margins, no widening of the hepatic fissure, a small cystic lesion approximately 0.4 cm in diameter in the left inner lobe of the liver, with no abnormal FDG uptake.
No obvious widening of the main portal vein, and no dilation of intrahepatic or extrahepatic bile ducts.
The gallbladder is small, with patchy areas of increased density within it; the gallbladder wall is not thickened, and localized FDG uptake is normal.
The pancreas is normal in shape, with no obvious abnormal density in the parenchyma; the main pancreatic duct is not widened, and FDG uptake is normal.
No abnormalities in spleen shape, size, density, or FDG uptake.
Both kidneys are normal in shape and size.
Several cystic lesions are present in the parenchyma of the left kidney, the largest being approximately 2.0 cm in long diameter.
FDG uptake is absent.
No widening of the renal pelvis, calyces, or ureter is observed, and FDG uptake is not significantly abnormal.
Bilateral adrenal gland imaging shows no significant abnormalities.
Intestinal distension is unsatisfactory.
Focal FDG uptake is increased in the rectum, with SUVmax = 12.6 and an uptake diameter of approximately 1.1 cm.
Irregular thickening of the gastric wall along the lesser curvature of the gastric body with increased FDG uptake (SUVmax = 13.8), the thicker area measuring approximately 1.8 cm, with a rough serosal surface; multiple lymph nodes are visible along the lesser curvature and retroperitoneum, the largest measuring approximately 0.9 cm in short diameter, with increased FDG uptake (SUVmax = 7.0); irregular soft tissue masses with indistinct borders are present in both adnexal regions, measuring approximately 4.5*3.7*6.1 cm on the left and approximately 5.2*3.7*6.2 cm on the right, with increased FDG uptake (SUVmax = 7.8 and 5.3 respectively).
Increased peritoneal density is observed in parts of the peritoneum, with multiple patchy and flocculent shadows, slightly increased FDG uptake (SUVmax = 2.6), and pelvic effusion is present.
The uterus is normal in shape and size, with no abnormal density shadows, but patchy increased FDG uptake in the endometrial area (SUVmax = 6.9).
The bladder is poorly filled, and no obvious positive stones are seen.
The spinal alignment was normal, and no abnormalities were found in overall bone mineral density or overall bone marrow FDG metabolism.

Impression

1. a. Irregular thickening of the gastric wall on the lesser curvature of the gastric body with increased FDG metabolism, consistent with gastric cancer. Multiple lymph node metastases in the para-curvature and retroperitoneum. b. Bilateral adnexal lesions with increased FDG metabolism, suggestive of metastatic tumors. Peritoneal seeding metastasis, pelvic effusion.

2. Chronic inflammatory micronodules in both lungs. Incomplete thymic regression.

3. Small liver cysts. Gallbladder cholestasis or gallstones. Left kidney cyst. Physiological uptake in the uterine cavity.

4. Focal increased FDG metabolism in the rectum, likely due to polyps or physiological uptake; endoscopic re-examination is recommended.

5. Low-density thyroid nodules with normal FDG metabolism, suggestive of nodular goiter; ultrasound examination is recommended. Reactive hyperplasia of bilateral deep cervical lymph nodes.

6. No obvious abnormalities were found on cranial scintigraphy.

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