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

After fasting and intravenous injection of 18F-FDG, a whole-body PET/CT scan was performed.
The whole-body images showed: Normal brain morphology and structure; no abnormal density shadows were seen in the brain parenchyma; no significant abnormalities in FDG uptake were observed.
No widening of the ventricles, sulci, fissures, or cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
Both eyeballs were symmetrical and showed no significant abnormalities.
A small amount of mucosal thickening was observed in the right maxillary sinus, but the sinus wall was intact.
No thickening was observed in the nasopharyngeal wall; the palatine tonsils were symmetrical, and FDG uptake was physiological.
The laryngopharynx showed no abnormalities in morphology and structure.
The parotid and submandibular glands were normal in morphology and density, and FDG uptake was physiological.
The thyroid gland was normal in morphology and size; a calcification lesion was observed in the left lobe, approximately 0.5 cm in diameter, with focal increased FDG uptake in the left lobe (SUVmax = 3.5).
Bilateral deep cervical spaces and submandibular lymph nodes were visualized; the largest had a short diameter of approximately 0.6 cm, with increased FDG uptake (SUVmax = 4.1).
The lung markings are clear.
Several small solid nodules with well-defined borders are present in both lungs, the largest being approximately 0.4 cm in diameter, located in the lateral segment of the right middle lobe.
No abnormal FDG uptake was observed.
A few linear lesions are present in both lungs, with no abnormal FDG uptake.
No pleural thickening is observed bilaterally, and there is no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes are seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette is normal.
The esophagus is not dilated, and no significant thickening or mass is observed in the esophageal wall; no increased FDG uptake was observed.
The liver showed no obvious abnormalities in shape and size, with smooth borders and no widening of the hepatic fissure.
A low-density mass was observed in the right lobe and adjacent left medial lobe, with indistinct borders and uneven density, containing patchy low-density lesions measuring approximately 15.3*8.5*17.1cm.
FDG uptake was unevenly increased, with an SUVmax of 17.4.
Multiple low-density lesions were present in the remaining liver area, the largest located at the top of the diaphragm, with a long diameter of approximately 4.9cm, showing increased FDG uptake, with an SUVmax of 15.7.
Enlarged lymph nodes were observed in the porta hepatis and on the right side above the diaphragm, the largest with a short diameter of approximately 1.3cm, showing increased FDG uptake, with an SUVmax of 13.5.
A small amount of pelvic effusion was present.
The gallbladder showed no abnormalities in shape or size, but increased density within the gallbladder.
The gallbladder wall was not thickened, and localized 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.
Both kidneys are normal in shape and size.
Focal FDG uptake is observed in the lower pole of the right kidney, with an SUVmax of 24.5 and an uptake diameter of approximately 1.4 cm.
No widening of the renal pelvis, calyces, or ureter is seen, and FDG uptake is not significantly abnormal.
Bilateral adrenal gland imaging shows no significant abnormalities.
Stomach distension is adequate, with slight thickening of the gastric wall in the cardia and antrum, and mildly increased FDG uptake (SUVmax = 3.0).
Intestinal distension is unsatisfactory; no local masses are observed.
Anal canal FDG uptake is increased (SUVmax = 4.2).
The prostate is normal in size, containing dense nodules approximately 0.5 cm in diameter, with no abnormally increased FDG uptake.
Bladder distension is poor, but no obvious positive stones are seen.
The spinal alignment is normal, with slight bulging of the L4/5 and L5/S1 intervertebral discs.
FDG uptake of the entire skeleton is normal.

Impression

1. Multiple space-occupying lesions in the liver with increased FDG metabolism; focal increased FDG metabolism in the lower pole of the right kidney; enlarged lymph nodes in the porta hepatis and right supradiaphragmatic region with increased FDG metabolism. All of these suggest malignancy. Primary malignant liver tumors (such as cholangiocarcinoma) with multiple metastases are highly probable; please correlate with clinicopathology. Small amount of pelvic effusion.

2. Several small solid nodules in both lungs with clear borders; FDG metabolism is normal. Metastases need to be ruled out; close CT observation is recommended. A few post-inflammatory lesions in both lungs.

3. Concentrated bile in the gallbladder. Calcification in the prostate.

4. Chronic inflammatory changes in the cardia and antrum of the stomach; hemorrhoidal changes.

5. Slight bulging of the L4/5 and L5/S1 intervertebral discs.

6. Calcification in the left lobe of the thyroid gland with focal increased FDG metabolism; further ultrasound examination is recommended.

7. No obvious abnormalities were found on cranial scintigraphy. A few chronic inflammations in the right maxillary sinus. Reactive hyperplasia of bilateral cervical lymph nodes.

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