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: Brain morphology and structure were normal, with punctate, slightly low-density shadows in the deep brain regions; FDG metabolism was normal.
The ventricles, sulci, fissures, and cisterns were widened, but local density and FDG uptake were normal; there was no midline shift.
Both eyes were symmetrical with no obvious 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 bilateral parapharyngeal spaces were clear with no abnormal FDG uptake.
The palatine tonsils showed physiological uptake.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The laryngopharynx showed no abnormalities in morphology and structure.
Thyroid gland is normal in shape and size, with slightly uneven density; FDG uptake is normal.
No enlarged lymph nodes were seen in the bilateral deep cervical spaces or submandibular region.
Lung markings are clear bilaterally; multiple solid nodules are present in both lungs, the largest being approximately 0.3 cm in diameter; FDG uptake is normal.
A few linear lesions are present in both lungs; FDG uptake is normal.
No pleural thickening was observed bilaterally; no pleural effusion or pneumothorax was observed bilaterally.
No significantly enlarged lymph nodes were seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette is normal.
Some arterial walls are calcified (including the coronary arteries).
The esophagus is not dilated; slight thickening of the mid-thoracic esophageal wall is observed with increased FDG uptake (SUVmax = 10.1, uptake length approximately 2.2 cm).
The liver margins are not smooth, and the proportions of the left and right lobes are disproportionate.
An irregular soft tissue mass with indistinct borders and low-density necrotic areas is present in the left medial lobe, measuring approximately 7.6*5.9*6.7cm.
FDG uptake is unevenly increased, with an SUVmax of 12.1.
A patchy, slightly low-density lesion with indistinct borders, measuring approximately 2.6*2.2cm, is present in the right posterior lobe.
FDG uptake is slightly higher than the liver background, with an SUVmax of 4.4.
Small lymph nodes are visible in the hepatic hilum, hilar space, and retroperitoneum, the largest with a short diameter of approximately 0.8cm.
FDG uptake is normal.
A small amount of effusion is present in the pelvic cavity.
The gallbladder is normal in shape and size, with slightly thickened walls and a dense nodule in the gallbladder neck measuring approximately 1.8*1.5cm.
Local FDG uptake is normal.
Pancreas: Normal morphology, no obvious abnormal density shadows seen in the parenchyma, no widening of the main pancreatic duct, and no obvious abnormalities in FDG uptake.
Spleen: Enlarged, with no abnormalities in density or FDG uptake.
Kidneys: Normal morphology and size, with a cystic lesion in the left kidney; no widening of the renal pelvis, calyces, or ureters bilaterally, and no obvious abnormalities in FDG uptake.
Adrenal glands: No obvious abnormalities seen on contrast.
Stomach: Poor filling, slight thickening of the cardia, part of the gastric body, and antrum walls, and increased FDG uptake (SUVmax = 3.8).
Intestinal filling: Insufficient filling, with increased FDG uptake in some parts of the intestine (SUVmax = 6.8).
Prostate: Normal size, with punctate dense shadows seen internally; no abnormally increased FDG uptake.
Bladder: Good filling, with no obvious positive stones seen.
The spinal alignment is normal, with some vertebral body margin osteophytes and L4/5 and L5/S1 intervertebral disc bulges.
A roughly 1.8*1.2cm round low-density lesion with relatively clear borders is seen posterior to the left psoas major muscle (approximately at the L5/S1 intervertebral space level), with a CT value of approximately 16 HU, increased FDG uptake, and SUVmax = 4.2.

Impression

1. a. An irregular soft tissue mass with increased FDG metabolism in the left inner lobe of the liver; patchy, slightly low-density lesions in the right posterior lobe of the liver, with FDG metabolism slightly higher than the liver background. Combined with contrast-enhanced MRI from another hospital, primary liver cancer is suspected. Please correlate with clinical findings. b. Liver cirrhosis, splenomegaly, pelvic effusion. Reactive hyperplasia of the hilar, hilar space, and retroperitoneal lymph nodes is highly probable. c. A roundish low-density lesion behind the left psoas major muscle (approximately at the L5/S1 intervertebral space), with increased FDG metabolism, is suspected to be a neurogenic tumor. Other possibilities need to be ruled out. Contrast-enhanced MRI is recommended for follow-up.

2. Chronic inflammatory nodules in both lungs. Follow-up CT is recommended. A few post-inflammatory lesions in both lungs. Calcification of some arterial walls (including coronary arteries).

3. Chronic cholecystitis, gallstones. Left renal cyst.

4. Benign prostatic hyperplasia with calcification. The mid-esophageal wall is slightly thickened with increased FDG metabolism, suggesting possible inflammatory changes. A follow-up gastroscopy is recommended to rule out a space-occupying lesion. Chronic inflammatory changes are present in parts of the stomach wall and intestines.

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

6. Age-related brain abnormalities, with deep lacunar infarcts; MRI is recommended.

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