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: a few punctate low-density shadows in the deep bilateral cerebral regions; no abnormal density shadows were seen in the remaining brain parenchyma, and FDG uptake was normal.
The ventricles, sulci, and fissures were widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and showed no obvious abnormalities.
Soft tissue nodules were seen in both nasal cavities, the largest being approximately 1.4 cm in long diameter; FDG metabolism was normal.
The left maxillary sinus mucosa was thickened, but the sinus wall was intact.
The nasopharyngeal wall was not thickened; FDG uptake was normal.
The pharyngeal recesses were symmetrical; there was no stenosis of the Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear, and FDG uptake was normal.
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 a low-density nodule in the right lobe and calcifications in both lobes.
FDG uptake is normal.
No enlarged lymph nodes are seen in either neck, and FDG metabolism is normal.
Multiple solid micronodules are seen in both lungs, approximately 0.2-0.3 cm in long diameter, with clear borders.
FDG metabolism is normal.
A few linear and punctate lesions are also seen in both lungs, with FDG metabolism normal.
Bilateral pleural effusion is present, more pronounced on the left.
No significantly enlarged lymph nodes are seen in the hilum and mediastinum.
The cardiac silhouette is normal.
The esophagus is not dilated, and the esophageal wall is not significantly thickened or swollen.
FDG uptake is normal.
Both breasts are normal, and FDG metabolism is normal.
The liver has an irregular outline, disproportionate lobes, widened fissures, and wavy edges.
A low-density mass measuring approximately 6.4 4.0 cm is seen in the left lobe of the liver, with increased FDG metabolism (SUVmax = 8.7).
Multiple cystic lesions are also observed within the liver, the largest with a long diameter of approximately 1.9 cm, showing absent FDG uptake.
The abdomen is rounded, with effusion in the abdominopelvic cavity.
Irregular thickening of the peritoneum, liver, spleen capsule, greater omentum, and mesentery in the abdominopelvic cavity is present, appearing as soft tissue nodules, masses, and disc-shaped masses, with increased FDG metabolism (SUVmax = 14.7).
The boundaries between some lesions and adjacent intestinal segments are unclear.
Several slightly enlarged lymph nodes are seen in the prediaphragmatic group, the largest with a short diameter of approximately 0.8 cm, showing increased FDG metabolism (SUVmax = 5.7).
The gallbladder is absent post-operatively.
The pancreas is normal in shape, with no obvious abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no obvious abnormalities in FDG uptake.
The spleen shows no abnormalities in shape, size, density, or FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows seen in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is normal.
Bilateral adrenal glands show no obvious abnormalities on contrast imaging.
The stomach is poorly distended, with no obvious thickening of the gastric wall, and FDG uptake is normal.
The uterus is slightly atrophied, with no abnormal density shadows, and FDG metabolism is normal.
The structures of both adnexa are not clearly visualized.
The bladder is generally full, with no obvious positive stones.
The spinal alignment is normal, with some vertebral body margin osteophytes and L4/5 and L5/S1 intervertebral disc bulging; FDG uptake is normal.
No abnormal FDG metabolism is observed in the entire skeletal system.

Impression

1. a. Mass in the left lobe of the liver, with elevated FDG metabolism, suggestive of malignancy, possibly primary or metastatic. b. Extensive implantation and metastasis in the abdominopelvic cavity. Abdominal and pelvic effusion. c. Bilateral pleural effusion. Metastasis to the anterior diaphragmatic lymph nodes. d. Bilateral adnexal structures are poorly visualized; clinical findings and enhanced MRI are recommended to rule out ovarian tumors.

2. Liver cirrhosis. Liver cysts.

3. Multiple small chronic inflammatory nodules (solid) in both lungs. A few chronic inflammatory lesions and old lesions in both lungs.

4. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulges.

5. Bilateral nasal polyps. Chronic inflammation of the left maxillary sinus. A few ischemic lesions in the deep bilateral brain regions, age-related brain changes.

6. Nodular goiter.

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