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, a whole-body PET/CT scan was performed.
The whole-body scan showed:Normal brain morphology and structure, with a few punctate or patchy low-density lesions in the deep brain regions; FDG uptake was normal.
Widening of some sulci, fissures, and cisterns was observed, but local density and FDG uptake were normal; midline shift was not observed.
Normal morphology and contour of both eyeballs; clear retrobulbar structures; FDG uptake was normal.
Slight thickening of the mucosa of both ethmoid sinuses, the right maxillary sinus, and the left sphenoid sinus; sinus walls were intact.
No significant thickening of the soft tissue on both sides of the nasopharyngeal walls; symmetrical pharyngeal recesses; FDG uptake was normal.
Normal morphology and structure of the oropharynx and laryngopharynx; clear parapharyngeal spaces.
Normal morphology and size of the thyroid gland; no obvious abnormal density shadows were observed; FDG uptake was normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG uptake was normal.
Increased translucency with cystic lucent shadows was observed in both lungs; a few patchy and linear shadows were seen in both lungs; FDG uptake was normal.
Two solid micronodules with clear borders were observed in the posterior basal segment of the right lower lobe; the larger one was approximately 0.3 cm in diameter; FDG uptake was normal.
No significant thickening of the pleura was observed bilaterally; no significant pleural effusion was observed bilaterally.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions; FDG uptake was normal.
The size of the heart was normal.
Calcification of the aorta and its branches was observed.
Small patchy low-density lesions were observed in the main pulmonary artery window; the peripheral area was relatively dense.
The long diameter was approximately 1.3 cm; FDG uptake was normal.
No dilation of the esophagus was observed; no significant thickening or mass was observed in the esophageal wall; FDG uptake was normal.
Following partial gastrectomy, the remaining stomach showed poor filling.
FDG uptake at the gastrojejunal anastomosis was increased (SUVmax = 2.9).
The remaining intestinal filling was unsatisfactory, with no localized masses, but some intestinal segments showed increased FDG uptake (SUVmax = 3.6).
The liver's shape and size were normal, with smooth borders and no widening of the hepatic fissure.
A slightly low-density mass, approximately 4.1 cm in diameter, was observed in the left lateral lobe of the liver, with relatively clear borders and homogeneous density, showing ring-like increased FDG uptake (SUVmax = 5.6).
Several roundish low-density lesions were seen within the liver parenchyma, the largest being approximately 2.1 cm in diameter in the lower segment of the right posterior lobe, with absent FDG uptake.
No dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder's shape and size were normal, with no thickening of the gallbladder wall, no positive stones or obvious masses, and normal FDG uptake in the gallbladder fossa.
The peripancreatic spaces are clear, and the pancreatic duct is not widened.
A low-density lesion running left and right is seen at the upper margin of the pancreatic body, with clear borders, measuring approximately 3.1 1.5 cm, containing a few septa, and FDG uptake is absent.
The spleen is generally normal in shape and size, with no abnormalities in density or FDG uptake.
Both adrenal glands are normal in shape, size, and density, with no abnormalities in local FDG uptake.
Both kidneys are normal in shape and size, with roundish low-density lesions within the renal parenchyma, with relatively clear borders; the largest is approximately 1.3 cm in diameter, and FDG uptake is absent.
A few punctate high-density lesions are seen within the renal parenchyma.
A roundish high-density nodule approximately 0.7 cm in diameter is seen at the upper pole of the right kidney, with no abnormalities in FDG uptake.
The renal pelvis, calyces, and ureters are not widened bilaterally.
Punctate high-density lesions are seen within the left renal calyx.
The prostate gland appears normal in shape and size, with punctate calcifications visible internally.
FDG uptake shows no focal abnormalities.
The right vas deferens and seminal vesicle show increased density, but FDG uptake is normal.
Post-bladder cancer surgery: The bladder is adequately filled, with no obvious localized thickening or soft tissue nodules in the bladder wall.
FDG uptake is normal.
No enlarged lymph nodes are seen in the retroperitoneal region.
FDG uptake is normal.
Flat lymph nodes are visible in both inguinal regions, with the hilum visible.
The largest has a short diameter of approximately 1.0 cm.
FDG uptake is normal.
No significant fluid accumulation is seen in the abdominal or pelvic cavities.
The spinal alignment is normal.
Cervical lordosis is reversed, with osteophyte formation at the margins of some vertebral bodies.
Osteoarthritis and narrowing of the intervertebral space are observed on the opposite side of the L5/S1 vertebral bodies.
The isthmus of the L5 vertebral body is fractured on both sides.
FDG uptake is normal.

Impression

1. a. Post-bladder cancer surgery, no clear signs of tumor recurrence were observed; please follow up with ultrasound. b. A mass in the left lateral lobe of the liver, with increased FDG metabolism, suggests a malignant tumor, more likely primary than metastatic.

2. A cyst on the upper margin of the pancreatic body is highly probable; MRI follow-up is recommended. Liver cyst. Reactive hyperplasia of lymph nodes in both inguinal regions.

3. Bilateral renal cysts, complex cyst in the right kidney, bilateral renal calcifications, small stone in the left kidney. Prostatic calcifications. Stones in the right vas deferens and seminal vesicle.

4. Changes after partial gastrectomy, physiological or inflammatory uptake at the gastrojejunostomy, and physiological uptake of part of the intestine.

5. a. Chronic inflammatory solid nodules in the lower lobe of the right lung, roughly similar to the CT scan from our center on October 19

6. The previously observed ground-glass opacity in the posterior segment of the lower lobe of the left lung was not clearly visualized this time. b. Pulmonary emphysema with bullae in both lungs, a few chronic inflammations and sequelae in both lungs. Partial arteriosclerosis. c. Benign patchy shadows in the aortic window, similar to the previous one.

7. Degenerative changes in the spine, cervical lordosis reversal, L5/S1 endplate inflammation, bilateral vertebral arch collapse of the L5 vertebral body.

8. Deep lacunar ischemic lesions in the brain, senile encephalopathy. A few chronic inflammations in multiple paranasal sinuses.

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