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 scan showed: The brain morphology and structure were normal, with no abnormal density shadows in the brain parenchyma, and no significant abnormalities in FDG uptake.
The ventricular system was slightly enlarged, with widening of the sulci, fissures, and cisterns.
The ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical, with no significant abnormalities.
The paranasal sinuses showed no thickening of the mucosa, and the sinus walls were intact.
The nasopharyngeal wall showed no thickening, and FDG uptake was normal.
The pharyngeal recesses were symmetrical, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, and the parapharyngeal spaces were clear with no abnormal FDG uptake.
The palatine tonsils showed physiological uptake.
The laryngopharynx was normal in morphology and structure.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
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 metabolism is normal.
Multiple ground-glass nodules with relatively clear borders and a long diameter of approximately 0.4 cm were observed in the apical segment of the right upper lobe and the anterior segment of the left upper lobe; FDG metabolism is normal.
Multiple small solid nodules were also observed in both lungs.
Several calcifications were observed in the middle and upper lobes of the right lung, the largest of which has a long diameter of approximately 0.3 cm; FDG uptake in all these calcifications is normal.
A few linear opacities were observed in both lungs; FDG metabolism is normal.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
No esophageal dilation was observed; no significant thickening or mass was observed in the esophageal wall; FDG uptake was not increased.
Two low-density nodules were observed in the left and right lobes of the liver.
The one near the diaphragm in the right lobe was larger, approximately 1.5 1.7 cm, with increased FDG uptake (SUVmax = 3.9).
The other nodule was located in the left lateral lobe, approximately 1.0 cm in long diameter, with slightly increased FDG uptake (SUVmax = 2.7).
No significant widening of the main portal vein was observed, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder was not significantly enlarged, and FDG uptake was normal.
A soft tissue mass was observed in the left upper abdomen, with indistinct boundaries from the pancreatic tail and splenic hilum.
FDG metabolism was increased, and the mass measured approximately 6.1 6.8 cm (SUVmax = 7.0).
Extensive thickening of the peritoneum in the abdominopelvic cavity was observed, with multiple nodules and flocculent areas of increased density.
Local thickening appeared as a pancake shape, with increased FDG metabolism (SUVmax = 3.5).
Numerous fluid-density shadows were observed in the abdominopelvic cavity, and adjacent intestinal segments were compressed and displaced.
Multiple enlarged retroperitoneal lymph nodes, the largest with a short diameter of approximately 2.7 cm, showed increased FDG uptake (SUVmax = 2.3).
A punctate high-density shadow was seen in the right kidney, and cystic lesions were seen in both kidneys, the larger one on the left measuring approximately 2.5 2.0 cm, with no significant abnormalities in FDG uptake.
Multiple density shadows were seen in the left renal pelvis and calyces, the largest measuring approximately 2.3 1.6 cm, with dilation and hydronephrosis of the left renal pelvis and calyces.
The left adrenal gland was not clearly visualized, while the right adrenal gland showed no significant abnormalities on contrast.
The gastric fundus and body mucosa showed slight thickening, with increased FDG metabolism (SUVmax = 3.0).
Intestinal distension was poor, with no significant thickening or mass in the intestinal wall; FDG uptake was physiological.
The prostate gland was of acceptable morphology, with punctate dense shadows visible internally; FDG uptake was not abnormally increased.
Bladder distension was poor, with punctate dense shadows seen in the lower urachus region.
A small amount of fluid-density shadow was seen in the tunica vaginalis of the left testis.
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies, calcification of the nuchal ligament, L3/4 and L4/5 intervertebral disc bulging, bilateral pars interarticularis discontinuity of the L5 vertebral body, and mild anterior slippage of the L5 vertebral body.
FDG uptake was normal.
No abnormal FDG metabolism was observed in the entire skeletal system.

Impression

1. a. Space-occupying lesions in both lobes of the liver with increased FDG uptake, suggestive of malignancy, possible metastasis, hepatocellular carcinoma to be ruled out. b. Extensive peritoneal seeding metastasis in the abdominopelvic region, with a large amount of fluid in the abdominopelvic cavity. Retroperitoneal lymph node metastasis. c. Soft tissue mass in the left upper abdomen with increased FDG metabolism, suggestive of malignancy, highly likely metastasis (peritoneal seeding metastasis), primary tumor to be ruled out. The above suggestions should be combined with enhanced MRI of the upper abdomen for comprehensive analysis.

2. a. Multiple ground-glass nodules in the apical segment of the right upper lobe and the anterior segment of the left upper lobe, with normal FDG metabolism, suggestive of atypical adenomatous hyperplasia or inflammatory nodules, annual HRCT follow-up recommended. b. Multiple chronic inflammatory nodules (solid) in both lungs; calcifications in the middle and upper lobes of the right lung; a few fibrotic lesions in both lungs.

3. Left renal pelvis and calyces stones with dilation and hydronephrosis; small calcifications in the right kidney; bilateral renal cysts. Left adrenal gland not clearly visible.

4. Thickening of the gastric fundus and body mucosa, increased FDG metabolism, suggestive of gastritis.

5. Prostatic calcifications. Calcifications at the lower end of the urachus are likely large. Small amount of hydrocele in the left testis.

6. Spinal degenerative changes, L3/4 and L4/5 intervertebral disc bulge, bilateral pars interarticular isthmic discontinuity of the L5 vertebral body, mild anterior slippage of the L5 vertebral body.

7. Mild age-related brain changes.

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