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, and resting, a whole-body PET/CT scan was performed.
The whole-body scan showed: Normal brain morphology and structure; no abnormal density shadows were seen in the brain parenchyma; FDG uptake was normal.
No widening was observed in the ventricles, sulci, fissures, or cisterns; local density and FDG uptake were normal; midline structure shift was normal.
The bilateral eyeballs had normal morphology and outline; retrobulbar structures were clear; the bilateral optic nerves were symmetrical; FDG uptake was normal.
The bilateral ethmoid and maxillary sinuses showed mucosal thickening, but the sinus walls were intact.
The nasopharyngeal walls showed no thickening; FDG uptake was normal; the bilateral pharyngeal recesses were symmetrical; the Eustachian tube openings were not narrowed; the infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear; FDG uptake was normal.
The bilateral palatine tonsils were full; FDG uptake was physiological.
The laryngopharynx had normal morphology and structure.
The bilateral salivary glands showed no abnormal visualization.
The thyroid gland had normal morphology and size, with slightly uneven density; FDG uptake was normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG uptake was normal.
The thorax was symmetrical.
Multiple round or oval solid nodules were observed in both lungs, the largest being approximately 1.7 cm in length in the posterior basal segment of the right lower lobe, with clear borders and increased FDG uptake (SUVmax = 3.4).
Scattered linear opacities were observed in both lungs.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions; FDG uptake was normal.
No pleural thickening was observed bilaterally; there was no pleural effusion or pneumothorax bilaterally.
The cardiac silhouette was normal.
The esophagus was not dilated; the esophageal wall was not significantly thickened or lumped; FDG uptake was normal.
Both breasts were full and dense, with no abnormal density shadows; FDG uptake was normal.
The liver was normal in shape and size; the liver margins were smooth; and the hepatic fissures were not widened.
Multiple low-density masses were observed in the liver parenchyma, the largest being located at the porta hepatis, measuring approximately 10.6*7.5*12.2cm.
The borders were relatively clear, but the density was not uniform, with increased FDG uptake (SUVmax = 8.9).
The lesion protruded beyond the liver outline, with indistinct demarcation from the right branch of the portal vein.
The pancreatic head, gallbladder, right kidney, and right upper quadrant of the gastrointestinal tract were compressed and displaced.
Details in the porta hepatis region were not clearly visible.
No significant dilation of intrahepatic or extrahepatic bile ducts was observed.
Patchy high-density shadows were seen within the gallbladder.
Lymph nodes were observed in the right anterior diaphragm group and left pelvic wall, the largest being located on the left pelvic wall with a short diameter of approximately 2.4cm, showing increased FDG uptake (SUVmax = 3.1).
Peritoneal thickening was observed in the abdominopelvic region, with blurred peritoneal spaces, more pronounced on the right side.
Pelvic effusion was present.
The pancreas appeared normal in morphology, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct was not widened, and FDG uptake was normal.
The spleen appeared normal in morphology, size, density, and FDG uptake.
The kidneys were normal in shape and size.
A cystic lesion approximately 1.3 cm in long diameter and a slightly high-density lesion of 0.8 cm were observed in the left kidney; FDG uptake was not significantly abnormal.
The renal pelvis, calyces, and ureters were not widened, and no positive stones were observed.
The adrenal glands were normal in shape and density, and FDG uptake was normal.
Gastric distension was poor, with slightly thickened antral walls and increased FDG uptake (SUVmax = 2.6).
Bowel preparation was poor; no obvious masses were observed in the intestinal wall, but continuous increased FDG uptake was observed in parts of the colon and rectum (SUVmax = 9.7).
Post-hysterectomy.
No abnormal density or FDG uptake was observed in the bilateral adnexa.
The bladder was adequately distended, and no positive stones or obvious masses were observed.
The spinal alignment was normal, with some vertebral marginal osteophytes and L4/5 and L5/S1 intervertebral disc bulging.
Focal increased FDG uptake was observed in the right 4th posterior rib (SUVmax = 1.8).

Impression

1. a. Multiple space-occupying lesions in the liver with increased FDG metabolism, suggestive of malignancy, possibly multiple metastases or hepatocellular carcinoma with intrahepatic metastasis. The boundary with the right portal vein branch is unclear; please combine clinical findings with enhanced MRI for comprehensive analysis. b. Right anterior diaphragmatic lymph node metastasis and left pelvic wall metastasis. c. Possible partial peritoneal tumor infiltration, pelvic effusion. d. Focal increased FDG uptake in the right 4th posterior rib, metastasis to be ruled out; follow-up is recommended.

2. Multiple metastases in both lungs. Pulmonary fibrosis. Bilateral breast hyperplasia.

3. Slightly thickened gastric antrum wall with increased FDG metabolism, and increased FDG metabolism in some intestinal segments, suggestive of chronic inflammation; please combine endoscopic follow-up and rule out other possibilities.

4. Gallstones. Left renal cyst, complex cyst.

5. Partial vertebral osteophyte formation. L4/5 and L5/S1 intervertebral disc bulge.

6. No obvious abnormalities seen on cranial scintigraphy. Chronic inflammation of bilateral ethmoid and maxillary sinuses.

7. The thyroid gland has uneven density, and no abnormalities were found in FDG metabolism. Nodular goiter is suspected. Ultrasound follow-up 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