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 hands raised, from the top of the skull to the upper thighs: The brain morphology and structure were normal, with punctate low-density shadows seen in the deep cerebral regions bilaterally; FDG uptake showed no significant abnormalities.
Some ventricles, sulci, fissures, and cisterns showed widening, but local density and FDG uptake were normal; midline structure shift was not observed.
The bilateral eyeballs showed normal morphology and contours; retrobulbar structures were clear; optic nerves were symmetrical bilaterally; FDG uptake showed no significant abnormalities.
A cystic lesion was seen in the right maxillary sinus, with intact sinus walls.
The nasopharyngeal wall was not thickened; there was no stenosis in the bilateral pharyngeal recesses and Eustachian tube openings; the bilateral infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear; FDG uptake was normal.
FDG uptake in the oropharynx and laryngopharynx was physiological.
No abnormal contrast was observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in morphology and size, with uniform density; FDG uptake was normal.
No enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG uptake was normal.
Multiple solid nodules, approximately 0.2?.5 cm in length, with clear borders were observed in both lungs; a few linear shadows were also observed in both lungs; FDG uptake was normal.
No pleural thickening or significant pleural effusion was observed bilaterally.
No enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions; FDG uptake was normal.
The cardiac silhouette was normal; myocardial FDG uptake was normal.
No significant thickening or mass was observed in the esophageal wall; FDG uptake was normal.
The liver lobes were disproportionate; the liver margins were not smooth; and the hepatic fissures were widened.
The liver parenchyma showed uneven density; a slightly low-density nodule measuring approximately 2.1 cm 2.2 cm was observed in liver S4; its borders were indistinct; the average CT value was approximately 55 HU; FDG uptake was increased; SUVmax = 4.1; and delayed SUVmax = 3.6.
Multiple cystic lesions were observed in the liver parenchyma; the largest had a length of approximately 1.1 cm.
Multiple calcifications were observed in the main portal vein and splenic vein walls; no dilation of intrahepatic or extrahepatic bile ducts was observed.
Multiple small lymph nodes were observed in the hepatogastric space, hepatic hilum, and retroperitoneum, the largest with a short diameter of approximately 0.5 cm; FDG uptake was normal.
The peritoneal spaces in the abdominopelvic cavity were slightly blurred, and a small amount of pelvic effusion was observed.
The gallbladder was normal in shape and size, with no thickening of the gallbladder wall, no positive stones or obvious masses, and 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 was absent postoperatively.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the renal parenchyma; FDG uptake was normal.
The renal pelvis, calyces, and ureters were not widened bilaterally, and no positive stones were observed.
The adrenal glands were normal in shape and density, and FDG uptake was normal.
The stomach was poorly distended, with increased FDG uptake in some parts of the gastric wall; SUVmax = 4.4.
Bowel preparation was poor; no obvious masses were seen in the intestinal wall, but FDG uptake was increased in some intestinal segments (SUVmax = 3.9).
The prostate gland appeared normal in shape and size, with a transverse diameter of approximately 4.4 cm; no obvious abnormal density shadows were seen in the parenchyma, and FDG uptake was normal.
Bladder filling was inadequate, but no obvious positive stones were found.
The spinal alignment was normal, with slight flattening of the T12 vertebral body.
Osteophyte formation was observed at the marginal points of some vertebral bodies, and an L5/S1 intervertebral disc bulge was present.
Nuchal ligament calcification was also observed.
FDG uptake in all bones was normal.

Impression

1. a. Hepatic parenchyma density is uneven, with a slightly low-density nodule at S4. Increased FDG metabolism, combined with contrast-enhanced MRI from another hospital, suggests hepatocellular carcinoma as the primary consideration. Please correlate with clinical and pathological findings. Reactive hyperplasia of the hepatogastric space, hepatic hilum, and retroperitoneal lymph nodes is highly probable; please follow up. b. Cirrhosis, multiple hepatic cysts. Splenectomy absent, multiple calcifications in the main portal vein and splenic vein walls. Slightly blurred peritoneal spaces in the abdominopelvic cavity, with a small amount of pelvic effusion.

2. Chronic inflammatory micronodules in both lungs, pulmonary fibrosis; please follow up with CT scans.

3. Increased FDG metabolism in parts of the gastric wall and intestines, considered to be physiological uptake or chronic inflammation; please follow up with endoscopy.

4. Spinal degeneration. T12 vertebral wedge deformity. L5/S1 intervertebral disc bulge.

5. Bilateral deep lacunar infarcts, mild age-related brain changes. Right maxillary sinus submucosal cyst.

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