Whole-body 18F-FDG PET/CT scan in a patient with Liver 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

Under fasting conditions, after intravenous injection of 18F-FDG and rest, a whole-body PET/CT scan was performed with both arms raised, from the top of the skull to the upper thighs: Brain morphology and structure were normal, with punctate low-density shadows seen in the deep cerebral regions bilaterally; FDG uptake showed no significant abnormalities.
The ventricles, sulci, fissures, and cisterns were widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were normal in shape and outline; the retrobulbar structures were clear; the optic nerves were symmetrical; FDG uptake showed no abnormalities.
The mucosa of the bilateral maxillary sinuses, ethmoid sinuses, and left sphenoid sinus was thickened to varying degrees; FDG uptake showed no abnormalities.
The nasopharyngeal wall was not thickened; there was no stenosis of the bilateral pharyngeal recesses or Eustachian tube openings; the infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear; FDG uptake showed no abnormalities.
FDG uptake in the oropharynx and laryngopharynx was physiological.
A slightly high-density nodule, approximately 0.7cm 0.5cm in size, was observed adjacent to the left parotid gland, with a mean CT value of 47 HU, clear borders, and increased FDG uptake (SUVmax = 2.9).
No other abnormalities were observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with slightly heterogeneous density, and no abnormal FDG uptake.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, or submental region.
Multiple solid nodules were observed in both lungs, the largest being located in the lateral segment of the right middle lobe, with a long diameter of approximately 1.3cm, clear borders, and increased FDG uptake (SUVmax = 6.7).
Scattered cystic lucent shadows were also observed in both lung fields, and a few linear areas of increased density were observed in the remaining lungs, with no abnormal FDG uptake.
Slight thickening of the bilateral pleura was observed, but there was no pleural effusion or pneumothorax.
Several lymph nodes were visualized in the bilateral hilar and mediastinal regions, the largest being approximately 0.8cm in short diameter, with increased FDG uptake (SUVmax = 4.3).
The cardiac silhouette was normal.
Calcification of some arterial walls (including coronary arteries) was observed.
No esophageal dilation, wall thickening, or masses were seen; FDG uptake was not increased.
The liver was enlarged with irregular borders and widened fissures.
Multiple fused, slightly low-density nodules and masses were observed in the liver parenchyma, the largest located in the right lobe, with a cross-sectional area of approximately 9.4cm 9.0cm.
The density was uneven, with an average CT value of 26 HU and indistinct borders.
FDG uptake was unevenly increased, with SUVmax = 11.3.
No significant widening of the main portal vein was observed; no dilation of intrahepatic or extrahepatic bile ducts was seen.
Several lymph nodes were visible in the porta hepatis, hiatal space, and retroperitoneum, the largest with a short diameter of approximately 0.8cm, showing increased FDG uptake (SUVmax = 3.0).
Small amounts of fluid were observed near the liver border, bilateral colic grooves, and in the pelvic cavity.
Partial flocculent thickening of the greater omentum and mesentery was observed, but FDG uptake was not abnormal.
The gallbladder is small in size with a rough wall and increased density, showing punctate high-density foci.
The surrounding fat spaces are slightly blurred, and local FDG uptake is normal.
The pancreas is normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct is not significantly widened, and FDG uptake is normal.
The spleen is normal in shape, size, density, and FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is normal.
The left adrenal gland is nodularly thickened, with a long diameter of approximately 1.6 cm, and FDG uptake is increased (SUVmax = 4.4).
The right adrenal gland shows no obvious abnormalities on contrast.
The stomach is poorly distended, with no obvious thickening of the stomach wall, and FDG uptake is normal.
The intestines are poorly distended, with linear calcifications in part of the colon wall, and FDG uptake is physiological.
The prostate is not significantly enlarged, but calcifications are seen in the parenchyma, and FDG uptake is normal.
The bladder was poorly filled, but no obvious stones were observed.
The spinal alignment was normal, but the bone density of the vertebral bodies was decreased, with some vertebral bodies showing marginal osteophyte formation, and calcification was visible in the nuchal ligament.
There were L4/5 and L5/S1 intervertebral disc herniations, but FDG uptake was normal.

Impression

1. a. Multiple fused nodules and masses in the liver with unevenly increased FDG metabolism suggestive of malignancy, with primary liver cancer being the first consideration. Please correlate with clinicopathology. Multiple lung metastases; left adrenal metastasis is highly probable. b. Possible lymph node metastases in the hepatic hilum, hilar space, retroperitoneum, bilateral hilar regions, and mediastinum. c. Liver cirrhosis; small amount of effusion in the abdomen and pelvis. Partial flocculent thickening of the greater omentum and mesentery, with normal FDG metabolism. Please confirm with CT follow-up to rule out metastasis.

2. A few post-inflammatory lesions in both lungs, emphysema, and bullae in both lungs. Mild thickening of the pleura on both sides. Partial arteriosclerosis (including coronary arteries).

3. Cholecystitis, gallstones.

4. Schistosomiasis intestinal disease. Prostatic calcifications.

5. Osteoporosis. Spinal degeneration. L4/5 and L5/S1 intervertebral disc herniation.

6. Bilateral deep lacunar infarcts, age-related brain changes. Chronic inflammation of the paranasal sinuses.

7. A slightly high-density nodule next to the left parotid gland with increased FDG metabolism is highly suggestive of a mixed tumor; please follow up with ultrasound.

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