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 patchy low-density shadows in the deep brain regions; no significant abnormalities were observed in FDG uptake.
Enlargement of the ventricles, sulci, fissures, and cisterns was observed; the ventricles were symmetrical bilaterally, and there was no midline shift.
The eyeballs were symmetrical bilaterally, with no significant abnormalities.
Thickening of the left maxillary sinus mucosa was observed, but the sinus wall was intact.
No thickening of the nasopharyngeal wall was observed; no abnormalities were observed in FDG uptake.
The pharyngeal recesses were symmetrical bilaterally, and there was no narrowing of the Eustachian tube openings.
The infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear, and no abnormalities were observed in FDG uptake.
The palatine tonsils showed physiological uptake bilaterally.
The laryngopharynx was normal in morphology and structure.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in morphology and size, with slightly uneven density; no abnormalities were observed in FDG uptake.
Several small lymph nodes were observed in the bilateral deep cervical spaces and submandibular region; no abnormalities in FDG metabolism were observed.
Multiple roundish solid nodules with clear borders, 0.3-1.8 cm in long diameter, were observed in both lungs.
FDG metabolism was elevated, with SUVmax = 8.9.
Scattered cystic lucent shadows and honeycomb shadows were observed in both lungs, with some interlobular septa thickening.
Scattered patchy shadows were observed in both lungs, with elevated FDG metabolism (SUVmax = 2.6).
Scattered linear shadows were observed in both lungs.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax.
Several mediastinal lymph nodes were observed, the largest with a short diameter of approximately 0.5 cm, and FDG metabolism was not elevated.
Some arterial walls showed calcification (including coronary arteries).
The cardiac silhouette was normal.
The esophagus was not dilated, and the wall was not significantly thickened or swollen; FDG uptake was not elevated.
The liver was normal in shape and size, with smooth borders and no widening of the hepatic fissures.
Plain CT scan showed no significant abnormal density shadows in the liver parenchyma, and FDG uptake was normal.
The main portal vein was not significantly widened, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder showed no abnormalities in shape or size, and the gallbladder wall was not thickened.
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 showed no abnormalities in shape, size, density, or FDG uptake.
The renal pelvis and calyces of the right kidney were indistinct, containing an irregular soft tissue mass measuring approximately 5.1*3.9cm with increased FDG metabolism (SUVmax=10.3).
Multiple soft tissue nodules were present around the mass, the largest being approximately 2.0cm in long diameter, with increased FDG metabolism (SUVmax=9.9).
Low-density lesions with clear borders and absent FDG uptake were observed in both kidneys.
The largest lesion was located in the left kidney and had a diameter of approximately 2.0cm.
Multiple enlarged retroperitoneal lymph nodes were present, the largest being approximately 2.4cm in short diameter, with increased FDG metabolism (SUVmax=13.4).
The bladder wall is diffusely thickened, containing multiple nodular soft tissue masses, approximately 4.2*2.4cm in size, with increased FDG metabolism (SUVmax = 17.5).
The lesions within the bladder involve the distal left ureter, with mild hydronephrosis of the left renal pelvis and ureter.
Bilateral adrenal gland imaging showed no significant abnormalities.
The stomach is poorly distended, with no significant thickening of the gastric wall and no significant abnormalities in FDG uptake.
The intestines are poorly distended, with no significant thickening or masses in the intestinal wall, and FDG uptake is physiological.
The prostate is of normal size, containing calcifications, and FDG uptake is not abnormally increased.
No significant fluid accumulation is observed in the abdomen or pelvis.
Calcification of the nuchal ligament is present.
Mild anterior displacement of the L4 vertebral body is observed.
Osteophyte formation is present at the marginal points of some vertebral bodies, with L4/5 and L5/S1 intervertebral disc bulging.
Localized bone destruction is present in the left iliac bone, with increased FDG metabolism (SUVmax = 7.0).

Impression

1. a. Soft tissue lesions in the right kidney and bladder with increased FDG metabolism, all suggestive of malignancy, most likely renal pelvis cancer and bladder cancer. The bladder lesion involves the distal left ureter, with mild dilation and hydronephrosis of the left renal pelvis and ureter. b. Multiple metastatic lesions in the perirenal space. Retroperitoneal lymph node metastasis. c. Multiple metastatic tumors in both lungs. d. Metastatic tumor in the left iliac bone.

2. Bilateral renal cysts. Prostatic calcification.

3. A few ischemic lesions in the deep brain, age-related brain changes, MRI follow-up recommended. Left maxillary sinusitis.

4. Emphysema and some interstitial changes in both lungs. Chronic inflammation and sequelae in both lungs. Reactive hyperplasia of mediastinal lymph nodes.

5. Calcification of some arterial walls (including coronary arteries).

6. Mild anterior slippage of the L4 vertebral body. Spinal degeneration. L4/5 and L5/S1 intervertebral disc bulge.

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