Whole-body 18F-FDG PET/CT scan in a patient with Bladder 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, and resting, a whole-body PET/CT scan was performed.
The whole-body scan showed: Post-operatively, following a cerebral hemangioblastoma, partial absence of both cerebellar hemispheres and adjacent occipital bones was observed, with no FDG uptake.
A foramen-like absence was seen in the right frontal skull, and a tubular low-density lesion was seen in the right frontal lobe, with no abnormal FDG uptake.
A few punctate low-density shadows were seen in the remaining deep cerebral regions bilaterally, with no significant abnormalities in FDG uptake.
Some ventricles, sulci, fissures, and cisterns were slightly widened; the ventricles were symmetrical bilaterally, and there was no midline shift.
The left mastoid air cells showed poor pneumatization.
Both eyeballs were symmetrical, with no significant abnormalities.
No thickening of the paranasal sinus mucosa was observed, and the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed, and FDG uptake was normal.
The palatine tonsils were symmetrical bilaterally, and FDG uptake was physiological.
The morphology and structure of the laryngopharynx were normal.
The parotid and submandibular glands are normal in morphology and density, with normal FDG uptake.
The right lobe of the thyroid gland is enlarged, with slightly low-density nodules in both lobes.
The larger nodule is located in the right lobe, with a long diameter of approximately 3.3 cm and relatively clear borders; FDG uptake is normal.
A small nodular calcification is also seen in the left lobe.
No significantly enlarged lymph nodes are seen in the bilateral deep cervical spaces, submandibular region, or submental region.
Increased lung markings are present in both lungs.
Several solid, subsolid, and nodular foci are seen in the right lung, the largest being approximately 0.5 cm in long diameter; FDG uptake is normal.
A few reticular density increases are seen in the subpleural region of the posterior segment of the left lower lobe; FDG uptake is normal.
No pleural thickening is seen bilaterally, and 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.
Partial calcification of the arterial wall; tubular dense shadows seen in the coronary artery course.
No esophageal dilation, wall thickening, or mass observed; FDG uptake not increased.
Liver morphology and size normal; smooth liver margins; no widening of the hepatic fissure; small patchy high-density shadows seen in the lower segment of the right posterior lobe on plain CT scan; FDG uptake not abnormal.
No significant widening of the main portal vein; no dilation of intrahepatic or extrahepatic bile ducts.
Gallbladder morphology and size normal; no thickening of the gallbladder wall; localized FDG uptake not abnormal.
Pancreas normal in morphology; cystic low-density lesion approximately 1.9 cm in long diameter seen in the tail of the pancreas; clear borders; absent FDG uptake; no widening of the main pancreatic duct.
Spleen morphology, size, density, and FDG uptake not abnormal.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows seen in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is not significantly abnormal.
Bilateral adrenal gland imaging shows no obvious abnormalities.
The stomach is adequately filled, with no obvious thickening of the stomach wall.
FDG uptake is slightly increased in some parts of the stomach wall, SUVmax=2.2.
The intestines are poorly filled, with no obvious thickening or mass in the intestinal wall.
FDG uptake is physiological.
The prostate is enlarged, with a transverse diameter of approximately 6.3cm.
FDG uptake is not abnormally increased.
The bladder is poorly filled, with a small nodular dense shadow with a long diameter of approximately 0.2cm.
After a delay, bladder filling is adequate.
A slightly high-density nodule, approximately 2.3*1.8cm in size, is seen on the lower left side of the bladder.
After a delay, FDG uptake is increased, SUVmax=19.7.
No enlarged lymph nodes were observed in the abdominal cavity, pelvic cavity, or retroperitoneal region.
No significant fluid accumulation was observed in the abdominal or pelvic cavities.
Following a left femoral head fracture surgery, the bone density of the left femoral head was unevenly decreased, with a ring-shaped low-density lesion visible.
FDG uptake was slight, with SUVmax = 1.2.
The spinal alignment was normal, with some vertebral body margin osteophytes and partial calcification of the nuchal ligament; FDG uptake was normal.
Small patchy and nodular dense shadows were observed in the right 7th and 8th posterior ribs; FDG uptake was normal.

Impression

1. a. A slightly high-density nodule on the left side of the lower bladder with increased FDG metabolism, suggestive of a malignant tumor, most likely bladder cancer. Please confirm with pathology. b. Small bladder stone. c. Postoperative left femoral head fracture surgery, unevenly decreased bone density in the left femoral head, slight FDG metabolism, suggesting postoperative changes. Please correlate with clinical findings and follow up.

2. a. Postoperative changes after cerebral hemangioblastoma, no significant abnormalities in FDG uptake in the surgical area. b. A few lacunar lesions in the deep bilateral brain, mild age-related brain changes. Poor pneumatization of the left mastoid air cells.

3. Chronic inflammatory nodules and nodule-like lesions in the right lung. Please follow up with CT scan. A few post-inflammatory remnants in the left lower lobe. Postoperative changes after coronary artery stenting; partial calcification of the arterial wall.

4. Nodular goiter is highly probable. Calcifications are present in the left lobe of the thyroid gland. Please repeat ultrasound and thyroid function tests.

5. Cystic mass in the tail of the pancreas. Enhanced MRI is recommended. Calcifications are present in the lower segment of the right posterior lobe of the liver. Benign prostatic hyperplasia.

6. Mildly increased FDG metabolism in some gastric wall areas, possibly due to physiological uptake or chronic inflammation.

7. Spinal degenerative changes. Bone islands in the right 7th and 8th posterior ribs.

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