Whole-body 18F-FDG PET/CT scan in a patient with Colon 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 no abnormal density shadows in the brain parenchyma, and FDG uptake was normal.
A slightly high-density nodule with an anteroposterior diameter of approximately 0.7 cm was seen in the falx cerebri region, with no abnormal FDG uptake.
No widening of the ventricles, sulci, fissures, or cisterns was observed, with no abnormalities in local density or FDG uptake, and no midline shift.
The morphology and outline of both eyeballs were normal, the retrobulbar structures were clear, and FDG uptake was normal.
Thickening of the right maxillary sinus mucosa was observed, but no thickening of the mucosa of the other paranasal sinuses was observed, and the sinus walls were intact.
No significant thickening of the soft tissue on both sides of the nasopharyngeal wall was observed, the pharyngeal recesses were symmetrical, and FDG uptake was normal.
The morphology and structure of the oropharynx and laryngopharynx were normal, and the parapharyngeal spaces were clear.
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 uptake is normal.
The right supraclavicular fossa lymph nodes are enlarged and rounded, the largest being approximately 0.8 cm in diameter; FDG uptake is increased, SUVmax = 10.7.
Scattered multiple solid soft tissue nodules of varying sizes are seen in both lungs and the interlobar fissure of the right lung; the largest is located in the apical segment of the right upper lobe and near the hilum of the right middle and lower lobes; the latter is the largest, approximately 2.2 1.3 cm; FDG uptake is increased, SUVmax = 6.6.
Slight thickening of the pleura is present bilaterally, with bilateral pleural effusion, more pronounced on the right side, accompanied by partial atelectasis of the right lower lobe.
Multiple small and enlarged lymph nodes were visible in the anterior mediastinum, aortopulmonary window, and right anterior diaphragmatic group.
The largest, located in the anterior mediastinum, measured approximately 1.9 1.0 cm, with increased FDG uptake (SUVmax = 15.9).
No significantly enlarged lymph nodes were seen in the left hilum, and FDG uptake was normal.
The heart size was normal.
A superior vena cava catheter was in place.
Both mammary glands showed dense fibrous tissue with normal FDG uptake.
The liver morphology and size were normal, with smooth borders and no widening of the hepatic fissure.
Scattered multiple low-density nodules and masses were seen within the liver parenchyma, with indistinct borders and some fused together.
Scattered punctate calcifications were visible in the central area of the larger nodule.
The largest nodule, located in the right posterior lobe of the liver, measured approximately 8.6 cm in long diameter, with increased FDG uptake (SUVmax = 13.4).
No dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder is normal in shape and size, with slightly thickened walls and higher density within the lumen.
FDG uptake in the gallbladder fossa is normal.
The peripancreatic spaces are clear, with no obvious abnormal density shadows in the parenchyma.
The pancreatic duct is not widened, and FDG uptake is normal.
The spleen is basically normal in shape and size, with no abnormalities in density or FDG uptake.
The bilateral adrenal glands are normal in shape, size, and density, with no abnormalities in local FDG uptake.
Both kidneys are normal in shape and size.
Two cystic low-density lesions are seen in the parenchyma of the left kidney, with clear borders and absent FDG uptake; the larger one is approximately 1.2 cm in diameter.
No obvious abnormal density shadows are seen in the parenchyma of the right kidney, and FDG uptake is normal.
No widening of the renal pelvis, calyces, or ureters is seen, and no positive stones are seen locally.
The bladder is poorly filled, and no positive stones are seen within the lumen.
Following left hemicolon surgery, anastomotic shadows were observed at the descending colon and rectal stumps.
Patchy soft tissue shadows were seen around the anastomosis at the descending colon stump, with increased FDG uptake (SUVmax = 3.2).
Changes following transverse colostomy showed increased FDG uptake in part of the right hemicolon wall (SUVmax = 6.4).
Scattered, multiple linear and patchy soft tissue lesions were observed around the liver, bilateral paracolic gutter, and mesentery, predominantly around the liver, with increased FDG uptake (SUVmax = 16.1).
Some lesions were poorly demarcated from surrounding intestinal segments, and the right lower quadrant abdominal wall was involved.
Multiple enlarged lymph nodes were observed in the porta hepatis, hilum, retroperitoneal para-aortic region, right iliac vessels, and bilateral pelvic walls, the largest approximately 1.8 cm in diameter, with increased FDG uptake (SUVmax = 9.7).
A cystic-solid mass was observed in the pelvic cavity with indistinct borders.
The largest axial section measured approximately 9.2 5.6 cm.
The solid portion showed increased FDG uptake (SUVmax = 8.8), and the boundary between the mass and the uterus was unclear.
Uterine FDG uptake was also increased (SUVmax = 8.9).
No esophageal dilation, wall thickening, or mass was observed, and FDG uptake was not increased.
Gastric distension was poor, with slight wall thickening in some areas.
FDG uptake was increased (SUVmax = 2.5).
Multiple focal areas of increased FDG uptake were observed in the left parietal bone, left petrous apex, both scapulae, parts of both ribs, multiple vertebrae and their appendages, both iliac bones, right acetabulum, right ischium, both pubis, and the upper segment of the right femur.
Some areas showed osteolytic bone destruction, with the right scapula and both pubis being the most prominent, accompanied by soft tissue mass formation.
The soft tissue lesion in the left pubis was relatively large, with a maximum axial cross-section of approximately 6.2 4.8 cm, showing increased FDG uptake and an SUVmax of 12.7.
Adjacent muscles were also involved.
The spinal alignment was unstable, with osteophyte formation at the margins of some vertebral bodies, and the L4 vertebral body was slightly displaced anteriorly.

Impression

1. Changes after left hemicolectomy and transverse colostomy: a. Multiple peritoneal seeding metastases (including around the anastomosis site of the descending colon stump). Multiple lymph node metastases throughout the body. Multiple liver metastases. Multiple lung metastases. Multiple bone metastases throughout the body. b. A cystic-solid mass in the pelvis with significantly increased FDG metabolism in the solid portion, suggesting possible malignancy; primary or metastatic origin in the adnexa is possible. Possible uterine metastases.

2. Manifestations of chronic gastritis. Chronic inflammatory changes in part of the right colon wall.

3. Chronic cholecystitis with cholestasis of the gallbladder. Left renal cyst.

4. Bilateral pleural effusion, more pronounced on the right side, with partial atelectasis of the right lower lobe. Bilateral breast hyperplasia.

5. Degenerative changes in the spine, L4 vertebral body grade I anterior slippage.

6. Possible falx cerebri meningioma. Chronic 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