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: A few punctate low-density shadows were seen in the deep bilateral cerebral regions; no abnormal density shadows were seen in the remaining brain parenchyma.
FDG uptake was normal.
The ventricles, sulci, fissures, and cisterns were widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical bilaterally, with no obvious abnormalities.
The left maxillary sinus mucosa was thickened, but the sinus wall was not destroyed.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The pharyngeal recesses were symmetrical bilaterally, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, and the bilateral parapharyngeal spaces were clear with no abnormal FDG uptake.
The palatine tonsils showed physiological uptake.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The morphology and structure of the laryngopharynx were normal.
The thyroid gland is normal in shape and size, with slightly uneven density; FDG uptake is normal.
No enlarged lymph nodes were seen in the bilateral deep cervical spaces or submandibular region.
Increased translucency in both lungs.
A small ground-glass nodule was seen in the lingular segment of the left upper lobe, with a CT value of approximately -562 HU, a long diameter of approximately 0.5 cm, and relatively clear borders; FDG metabolism was normal.
Several other solid nodules were seen in both lungs, with long diameters of approximately 0.2-0.4 cm, clear borders; FDG metabolism was normal.
A few speckled and linear lesions were also seen in both lungs; FDG metabolism was normal.
No pleural thickening was seen bilaterally; there was no pleural effusion or pneumothorax bilaterally.
The cardiac silhouette was normal.
No esophageal dilation was seen; no significant thickening or mass was seen in the esophageal wall; FDG uptake was normal.
The liver showed no obvious abnormalities in shape and size, with smooth liver margins and no widening of the hepatic fissures.
Plain CT scan showed no obvious abnormal density shadows in the liver parenchyma, and FDG uptake was normal.
The main portal vein showed no obvious widening, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder showed no abnormalities in shape and size, with no thickening of the gallbladder wall and no abnormal local FDG uptake.
Fatty infiltration was observed in the pancreas, but the main pancreatic duct was not widened, and FDG uptake was normal.
The spleen showed no abnormalities in shape, size, density, or FDG uptake.
Multiple cystic lesions were observed in both kidneys, the largest being in the left kidney, measuring approximately 6.2 5.8 cm.
The renal pelvis, calyces, and ureters showed no widening, and FDG uptake was normal.
Bilateral adrenal gland imaging showed no obvious abnormalities.
Irregular thickening of the gastric antrum wall presenting as a mass, narrowing the gastric cavity, with an affected length of approximately 4.0 cm.
FDG metabolism is increased, SUVmax=9.3.
Multiple enlarged lymph nodes are seen in the hepatogastric space, para-aortic region, mesenteric root, peripancreatic region, bifurcation of both common iliac arteries, para-right external iliac vessels, right diaphragmatic crura, para-descending aorta in the posterior mediastinum, aortopulmonary window, left para-tracheal region in the superior mediastinum, and left supraclavicular fossa.
The largest has a short diameter of approximately 1.8 cm, with increased FDG metabolism, SUVmax=12.8.
Intestinal distension is unsatisfactory, with continuous increased FDG metabolism in the descending colon, sigmoid colon, and rectum, SUVmax=5.9.
The prostate is full in shape, with a transverse diameter of approximately 5.0 cm, uniform density, and no abnormal FDG metabolism.
The bladder is generally full, with no obvious positive stones.
No obvious effusion is seen in the abdominal or pelvic cavities.
The spinal alignment is normal, with some vertebral body margin osteophytes and L4/5 and L5/S1 intervertebral disc bulges.
Systemic bone marrow FDG metabolism is normal.

Impression

1. a. Gastric antrum mass with increased FDG metabolism, consistent with gastric cancer. b. Multiple lymph node metastases in the left supraclavicular fossa and thoracic and abdominal regions (see description for details).

2. a. Ground-glass nodule in the lingular segment of the left upper lobe, FDG metabolism normal, suggestive of inflammatory nodule or atypical adenomatous hyperplasia; annual HRCT follow-up recommended. b. Several small chronic inflammatory nodules (solid) in both lungs. A few chronic inflammations and old lesions in both lungs. Emphysema in both lungs.

3. Bilateral renal cysts. Pancreatic fatty infiltration. Benign prostatic hyperplasia.

4. Continuous increased FDG metabolism in the descending colon, sigmoid colon, and rectum, suggestive of inflammatory or physiological uptake; colonoscopy follow-up recommended.

5. Degenerative changes in the spine. L4/5 and L5/S1 disc bulges.

6. Minor ischemic lesions in the deep bilateral brain regions, indicative of age-related cerebral insufficiency. Chronic inflammation of the left 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