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: The brain morphology and structure were normal, with multiple punctate low-density shadows visible in the deep bilateral cerebral regions; FDG uptake was not significantly abnormal.
The ventricular system was slightly enlarged, with widening of the sulci, fissures, and cisterns; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical bilaterally, with no obvious abnormalities.
The right maxillary sinus mucosa was thickened, but the sinus wall was intact.
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; FDG uptake was normal.
The oropharynx and laryngopharynx showed no abnormal FDG uptake.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The thyroid gland is normal in shape and size, with slightly uneven density; FDG uptake is normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG metabolism is normal.
Multiple focal air-containing cystic cavities were observed in both lungs, some of which merged to form pulmonary bullae; FDG uptake is normal.
Multiple solid nodules were observed in both lungs, most with relatively clear borders; FDG uptake is normal.
A few streaks were observed in the lower lobes of both lungs; FDG uptake is normal.
The pleura is slightly thickened bilaterally, with no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The walls of the aorta and coronary arteries are partially calcified.
The liver is normal in shape and size, with smooth borders and no widening of the hepatic fissure.
A small cystic lesion, approximately 1.0 cm in long diameter, is visible in the left lateral lobe of the liver; FDG uptake is normal.
The main portal vein was not significantly widened, and no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder was small in size, with a thickened and rough wall; 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's shape, size, density, and FDG uptake were normal.
Multiple cystic lesions were seen in the parenchyma of both kidneys, the largest being approximately 1.4 cm in long diameter; the renal pelvis, calyces, and ureters were not widened, and FDG uptake was normal.
Bilateral adrenal gland contrast was normal.
The esophagus was not dilated, and no significant thickening or mass was observed in the esophageal wall; FDG uptake was not increased.
The soft tissue in the antrum of the stomach is thickened, appearing as a mass with indistinct borders.
FDG metabolism is increased, and the mass measures approximately 5.1 3.9 cm, with an SUVmax of 16.4.
Localized thickening of the ascending colon wall is observed, with increased FDG uptake (SUVmax = 14.4).
Multiple lymph nodes are seen in the surrounding mesenteric area, the largest with a short diameter of approximately 0.5 cm, showing slight FDG uptake (SUVmax = 1.1).
Focal increases in FDG uptake are also observed in the transverse colon and ileocecal region, with a small amount of soft tissue filling the corresponding intestinal lumen, and increased FDG uptake (SUVmax = 10.2).
The prostate is of normal size and uniform density, with no abnormally increased FDG uptake.
The bladder is generally full, and no obvious positive stones are seen.
No significant fluid accumulation is observed in the abdomen or pelvis.
The spinal alignment is normal, with some vertebral body margin osteophytes, calcification of the nuchal ligament, L3/4 and L4/5 intervertebral disc bulges, and mild L5/S1 intervertebral disc protrusion.
FDG uptake is normal.
Post-left hip replacement surgery changes are present; the right femoral head is slightly flattened, with multiple roundish low-density shadows inside, and sclerosis is visible at the edges.
FDG uptake is increased, with SUVmax = 2.5.

Impression

1. a. Space-occupying lesion in the antrum of the stomach, with increased FDG metabolism, consistent with gastric cancer based on clinical findings. b. Localized thickening of the ascending colon wall with increased FDG uptake, consistent with colorectal cancer based on clinical findings. Reactive hyperplasia of surrounding mesenteric lymph nodes. c. Focal increased FDG uptake in the transverse colon and ileocecal region, suggestive of polyps or intestinal contents; follow-up colonoscopy is recommended.

2. Emphysema and bullae in both lungs, multiple chronic inflammatory micronodules in both lungs, and a few post-inflammatory remnants in the lower lobes of both lungs. Slight thickening of the pleura bilaterally. Partial calcification of the aorta and coronary artery walls.

3. Cyst in the left lateral lobe of the liver. Chronic cholecystitis. Multiple cysts in both kidneys.

4. Degenerative changes in the spine. L3/4 and L4/5 disc bulges, mild L5/S1 disc protrusion. Post-left hip replacement surgery changes; right femoral head avascular necrosis.

5. Bilateral deep lacunar infarcts, age-related brain changes. Minor 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