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: Brain morphology and structure were normal, with increased soft tissue shadows in the sellar region, increased FDG uptake (SUVmax = 17.9, uptake area approximately 1.1*1.0cm), and apparent bone destruction in the clinoid process.
Patchy low-density shadows were seen in the deep cerebral regions bilaterally, with no significant abnormalities in FDG uptake.
Some ventricles, sulci, fissures, and cisterns showed widening, but local density and FDG uptake were normal, and there was no midline shift.
The morphology and outline of both eyeballs were normal, retrobulbar structures were clear, the optic nerves were symmetrical bilaterally, and FDG uptake was normal.
Thickening of the mucosa of both ethmoid sinuses and the left maxillary sinus was observed, but the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed.
There was no narrowing of the bilateral pharyngeal recesses and Eustachian tube openings.
The bilateral infratemporal fossa and pterygopalatine fossa structures were normal.
The bilateral parapharyngeal spaces were clear, and FDG uptake was normal.
The bilateral palatine tonsils were full in shape, and FDG uptake was physiological.
No abnormalities were observed in the morphology and structure of the laryngopharynx.
No abnormal contrast was observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with slightly uneven density; 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.
A few patchy, blurred shadows were observed in the upper lobes of both lungs.
Multiple solid nodules with a long diameter of approximately 0.3-0.4 cm were observed in both lungs; FDG uptake was normal.
Scattered linear shadows were observed in both lungs; partial atelectasis was observed in the right middle lobe.
The trachea was midline, and the trachea and the bronchial lobes and segments were patent.
Mild thickening of the pleura bilaterally, with no pleural effusion or pneumothorax bilaterally.
Multiple slightly high-density lymph nodes are seen in the bilateral hilum, pretracheal space, aortic window, and below the carina, the largest being approximately 1.1 cm in short diameter, with increased FDG uptake (SUVmax = 6.6).
The cardiac silhouette is normal, and myocardial FDG uptake is normal.
Calcification is present in some arterial walls (including the coronary arteries).
No significant thickening or mass is seen in the esophageal wall, and FDG uptake is normal.
The liver's shape and size are normal, but the liver margins are not smooth, and the hepatic fissure is slightly widened.
No significant abnormal density shadows are seen in the liver parenchyma, and FDG uptake is normal.
The main portal vein is not significantly widened, and no dilation of intrahepatic or extrahepatic bile ducts is observed.
The gallbladder's shape and size are normal, the gallbladder wall is not thickened, but nodular dense shadows are seen within, and FDG uptake is normal.
The pancreas appears normal in morphology, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct is not widened, and FDG uptake is normal.
The spleen is enlarged, but its density and FDG uptake are normal.
Both kidneys appear normal in morphology and size, with no obvious abnormal density shadows in the renal parenchyma.
FDG uptake is normal.
The left renal pelvis, calyces, and ureter are not widened, and no positive stones are found.
A slightly low-density nodule with a long diameter of approximately 1.0 cm is seen in the right adrenal gland, but FDG uptake is normal.
The left adrenal gland appears normal in morphology and density, and FDG uptake is normal.
Gastric distension is poor, but FDG uptake is normal.
Bowel preparation is poor; no obvious masses are seen in the intestinal wall, but FDG uptake is increased in some intestinal segments, with SUVmax = 7.5.
The prostate gland appears normal in shape and size, with a transverse diameter of approximately 3.5 cm.
Calcifications are observed in the parenchyma.
FDG uptake is normal.
Post-bladder cancer treatment: Bladder filling is adequate.
The right lateral wall is slightly thickened and roughened, with localized increased FDG uptake (SUVmax = 13.2, uptake range approximately 1.6*1.3 cm).
No obvious positive stones are seen in the bladder cavity.
The right renal pelvis and the upper and middle segments of the right ureter are slightly dilated with slightly thickened walls.
No obvious positive stones are seen.
No enlarged lymph nodes are seen in the abdomen, pelvis, or retroperitoneal region.
Multiple lymph nodes are seen in both inguinal regions, the largest with a short diameter of approximately 0.6 cm.
FDG uptake is normal.
No significant fluid accumulation is seen in the abdominal or pelvic cavities.
Bilateral hydrocele.
A linear shadow is seen in the right lower abdominal wall, with increased FDG uptake (SUVmax = 2.7).
The spinal alignment is normal, with some vertebral body margin osteophytes.

Impression

1. a. Post-bladder cancer treatment: Slight thickening of the right bladder wall with localized increased FDG metabolism, considered a post-treatment change. Residual tumor activity needs further investigation. Please combine clinical findings with enhanced MRI for comprehensive analysis. Mild hydronephrosis and dilatation of the right upper urinary tract.? b. Reactive hyperplasia of bilateral inguinal lymph nodes. Inflammatory changes in the right lower abdominal wall.

2. Sellar region lesion with increased FDG uptake, suggestive of possible pituitary adenoma. Further enhanced pituitary MRI is recommended.

3. Minor inflammation in the upper lobes of both lungs. CT follow-up is recommended after anti-inflammatory treatment. Chronic inflammatory micronodules in both lungs, fibrotic lesions in both lungs. Chronic inflammatory lymph nodes in both hilar and mediastinal regions. Partial arteriosclerosis (including coronary arteries).

4. Liver cirrhosis, splenomegaly. Gallstones. Right adrenal adenoma. Prostatic calcification. Bilateral hydrocele.

5. Increased FDG metabolism in some intestinal segments, possibly due to physiological uptake or chronic inflammation; please follow up with endoscopy.

6. Spinal degenerative changes.

7. Bilateral deep lacunar infarcts, senile encephalopathy. Chronic inflammation of bilateral ethmoid sinuses and 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