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

Under fasting conditions, an intravenous injection of 18F-FDG was administered, followed by rest.
Whole-body PET/CT imaging was then performed with arms raised, from the top of the skull to the upper thighs.
Brain morphology and structure were normal, with punctate low-density lesions seen in the deep bilateral cerebral regions; FDG uptake was not significantly abnormal.
The greater occipital cisterns, ventricles, sulci, fissures, and cisterns were widened, with symmetrical bilateral ventricles and no midline shift.
The bilateral eyeballs showed normal morphology and outline, with clear retrobulbar structures and symmetrical bilateral optic nerves; FDG uptake was not abnormal.
The bilateral ethmoid and maxillary sinuses showed slight mucosal thickening, with intact sinus walls; FDG uptake was absent.
The nasopharyngeal walls showed no thickening; there was no stenosis of the bilateral pharyngeal recesses and Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear; FDG uptake was not abnormal.
FDG uptake in the oropharynx and laryngopharynx was physiological.
The bilateral parotid and submandibular glands showed no abnormal contrast.
The thyroid gland was normal in shape and size, with slightly uneven density; FDG uptake was not abnormal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region.
Lung markings were slightly blurred with increased translucency, particularly in the upper lobes.
A pure ground-glass nodule with a long diameter of approximately 0.3 cm was seen in the apical segment of the right upper lobe, with indistinct borders; FDG uptake was normal.
Scattered solid nodules were observed in both lungs, with regular shapes and clear borders, measuring approximately 0.3?.7 cm in long diameter; FDG uptake was normal.
A small calcification was observed in the anterior segment of the right upper lobe near the subpleural region.
A few linear and flocculent density shadows were also observed in both lungs; FDG uptake was normal.
The pleura was slightly thickened bilaterally, but there was no pleural effusion or pneumothorax.
Lymph nodes were visualized in the bilateral hilar and mediastinal tracheal-posterior vena cava windows, and in the aortic and pulmonary artery windows; the largest had a short diameter of approximately 0.7 cm, with increased FDG uptake (SUVmax = 5.4).
The cardiac silhouette was normal.
Calcification was observed in some arterial walls (including the coronary arteries).
The liver margins are wavy, and the hepatic fissures are widened.
An irregular, slightly low-density mass with indistinct borders, measuring approximately 9.6cm 9.3cm, is seen at the junction of the left and right lobes of the liver.
This mass exhibits heterogeneous density with small calcifications and unevenly increased FDG uptake (SUVmax = 10.4).
Several other slightly low-density lesions are observed within the remaining liver, with the largest uptake cross-section measuring approximately 1.2cm 0.9cm, showing increased FDG uptake (SUVmax = 7.0).
A low-density nodule with smooth margins, approximately 1.4cm in long axis, is seen in the left medial lobe of the liver, exhibiting absent FDG uptake; several small calcifications are also present within the liver.
The main portal vein is not significantly widened, and no dilation of intrahepatic or extrahepatic bile ducts is observed.
The gallbladder is shrunken, with slightly thickened walls, but local FDG uptake is normal.
The pancreas is normal in shape, density, and FDG uptake, and the main pancreatic duct is not widened.
The spleen is normal in shape, size, density, and FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
No widening of the renal pelvis, calyces, or ureters was observed, and FDG uptake was not significantly abnormal.
Slight thickening of the left adrenal junction with slightly increased FDG uptake (SUVmax = 2.8); no significant abnormalities were observed on the right adrenal gland.
No esophageal dilation, wall thickening, or mass was observed, and FDG uptake was not increased.
Poor gastric filling was observed, with slight wall thickening and mildly increased FDG uptake (SUVmax = 2.4).
Poor intestinal filling was observed, with no significant wall thickening or mass, and FDG uptake was physiological.
The prostate was enlarged, with a high-density shadow within the parenchyma, and FDG uptake was not abnormal.
The bladder was poorly filled, and no obvious positive stones were observed.
No enlarged lymph nodes were observed in the abdomen, pelvis, or retroperitoneum.
No significant fluid accumulation was observed in the abdomen or pelvis.
Sacralization of the lumbar vertebrae was observed, with osteophyte formation at the margins of some vertebral bodies.
L4/5 and L5/S1 intervertebral disc bulges were observed, but FDG uptake was not abnormal.
L4/5 intervertebral disc degeneration with pneumoconiosis.
A pneumoconiosis cavity with a long diameter of about 1.4 cm is seen on the left side of the L5 vertebral body, with clear borders and no FDG uptake.

Impression

1. a. An irregular, slightly low-density mass at the junction of the left and right lobes of the liver, with several other slightly low-density nodules in the remaining liver. FDG metabolism is unevenly elevated, suggesting malignancy. Hepatocellular carcinoma with intrahepatic metastases is the primary consideration; please confirm with pathology. b. Liver cirrhosis. Cyst in the left inner lobe of the liver. Intrahepatic calcifications.

2. a. A pure ground-glass nodule in the apical segment of the right upper lobe of the lung, with no significant abnormalities in FDG metabolism, suggesting chronic inflammatory nodules or atypical adenomatous hyperplasia. Annual HRCT follow-up is recommended. b. Chronic bronchitis and emphysema in both lungs. Scattered small chronic inflammatory nodules (solid) and calcifications in both lungs; please confirm with CT follow-up. A few post-inflammatory remnants in both lungs. Mild pleural thickening bilaterally. Reactive hyperplasia of hilar and mediastinal lymph nodes bilaterally. Partial arteriosclerosis (including coronary arteries).

3. Chronic cholecystitis. Left adrenal hyperplasia. Benign prostatic hyperplasia with calcification.

4. Chronic gastritis; please confirm with endoscopy follow-up.

5. Lumbarization of the sacrum, degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulges. L4/5 intervertebral disc pneumatosis and degeneration. Pneumatosis cyst on the left side of the L5 vertebral body.

6. Age-related brain changes, deep lacunar infarcts, cisterna magna. Minor inflammation of the bilateral ethmoid and maxillary sinuses.

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