Whole-body 18F-FDG PET/CT scan in a patient with Lung 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: "Multiple space-occupying lesions in the right cerebellum and left frontoparietal lobe after Gamma Knife treatment." Multiple mixed, slightly high-density masses were seen in the right cerebellar hemisphere and left frontoparietal lobe.
The largest mass, approximately 3.0*2.5cm in the right cerebellar hemisphere, was surrounded by large, finger-like low-density lesions with clear borders and decreased FDG uptake.
Punctate low-density lesions were seen in the bilateral basal ganglia, with decreased FDG uptake.
No significant widening of the ventricles, sulci, fissures, or cisterns was observed.
The ventricles were symmetrical, and there was no midline shift.
The morphology and contours of both eyes were normal, the retrobulbar structures were clear, the optic nerves were symmetrical, and there was no abnormal FDG uptake.
The right maxillary sinus mucosa was slightly thickened, and cystic, slightly high-density lesions were visible; the sinus wall was intact.
Increased FDG uptake on both nasopharyngeal walls, SUVmax=4.5.
Palatine tonsils are symmetrical, with physiological FDG uptake.
No abnormalities were observed in the morphology and structure of the laryngopharynx.
The parotid and submandibular glands are normal in morphology and density, with physiological FDG uptake.
The thyroid gland is normal in morphology and size, with uniform density, and no abnormalities in FDG uptake.
Several lymph nodes are visible in the bilateral deep cervical spaces and submandibular region, the largest with a short diameter of approximately 0.7 cm, and no abnormalities in FDG uptake.
Increased lung markings are observed bilaterally, with slight thickening of the subpleural interlobular septa.
Increased translucency is seen in the upper lobes of both lungs.
A soft tissue mass is seen in the apical-posterior segment of the left upper lobe, measuring approximately 3.4*2.5*2.2 cm, with an average CT value of 37 HU.
The mass has short, fine spiculations at the margins and a lobulated appearance, surrounded by pleural traction and truncation of the adjacent bronchus.
FDG uptake is unevenly increased, SUVmax=7.9.
A few patchy and linear areas of increased density were observed in both lungs, with no abnormal FDG uptake.
Slight thickening of the pleura was present bilaterally, but there was no pleural effusion or pneumothorax.
Several lymph nodes were visible in the left hilum and mediastinum (right upper mediastinum, paratracheal, pretracheal, posterior to the vena cava, and aortic window) and right supraclavicular fossa, the largest being approximately 1.5 cm in short diameter, with increased FDG uptake (SUVmax = 9.6).
The cardiac silhouette was normal.
Calcification of some arterial walls was observed (including the coronary arteries).
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
Plain CT scan showed no significant decrease in liver parenchyma density.
A cystic low-density shadow, approximately 1.1 cm in long diameter, with clear borders and absent FDG uptake, was seen in the left lobe of the liver.
The main portal vein showed no significant widening, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder showed no abnormalities in shape or size, with no thickening of the gallbladder wall and no abnormal local FDG uptake.
The pancreas is normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct is not widened, and FDG uptake is normal.
The spleen is normal in shape, size, density, and FDG uptake.
A roundish low-density shadow with arc-shaped calcification at the edge is seen in the area posterior to the pancreatic tail along the splenic artery; FDG uptake is normal.
Both kidneys are normal in shape and size.
A small cystic low-density shadow is seen in the left kidney, approximately 0.7 cm in long diameter, with clear borders and decreased FDG uptake.
The renal pelvis, calyces, and ureters are not widened bilaterally.
The left adrenal gland is unevenly thickened with slightly increased FDG uptake (SUVmax = 2.6); the right adrenal gland shows no obvious abnormalities on contrast.
The esophagus is not dilated, and the wall is not significantly thickened or swollen.
FDG uptake is increased in the lower thoracic segment of the esophagus (SUVmax = 3.4).
The stomach is generally full, with no obvious thickening of the stomach wall.
FDG uptake is increased in the cardia and antrum, SUVmax=3.6.
The intestines are poorly full, with no obvious thickening or mass in the intestinal wall.
FDG uptake is increased in some intestinal segments, SUVmax=6.0.
The prostate is of normal size, with punctate calcifications in the parenchyma; FDG uptake is not abnormally increased.
The bladder is poorly full, with no obvious positive stones.
No enlarged lymph nodes are seen in the abdomen, pelvis, or retroperitoneum.
No obvious fluid accumulation is seen in the abdomen or pelvis.
FDG uptake is increased in multiple muscles throughout the body, SUVmax=5.7.
The spinal alignment is normal, with some vertebral body margin osteophytes; mild bulging of the L4/5 and L5/S1 intervertebral discs, FDG uptake is not abnormal.
Increased FDG uptake is seen near the right shoulder joint, SUVmax=3.6.

Impression

1. a. A soft tissue mass in the posterior segment of the left upper lobe with unevenly increased FDG metabolism, suggestive of lung cancer. Please confirm with pathology. b. Metastasis to the left hilar and mediastinal lymph nodes, and the right supraclavicular fossa. c. Mild interstitial changes in both lungs with a few chronic inflammations and sequelae, emphysema in the upper lobes of both lungs. Mild thickening of the pleura on both sides. Calcification of some arterial walls (including coronary arteries). d. Left adrenal hyperplasia is highly probable; please follow up with ultrasound to rule out metastasis.

2. Multiple lesions in the right cerebellum and left frontoparietal lobe after Gamma Knife treatment: a. Multiple mixed slightly high-density masses in the right cerebellar hemisphere and left frontoparietal lobe, with decreased FDG metabolism, suggestive of post-treatment changes accompanied by peritumoral edema. It is recommended to have a follow-up enhanced MRI at intervals to rule out residual tumor activity.? b. Lacunar infarcts in both basal ganglia regions; please follow up with MRI. A few chronic inflammations and submucosal cysts in the right maxillary sinus.? c. Inflammatory or physiological uptake of both nasopharyngeal walls. Reactive hyperplasia of both deep cervical spaces and submandibular lymph nodes.

3. No clear signs of fatty liver, liver cysts. Splenic artery aneurysm is highly likely; CTA follow-up is necessary if needed. Small cyst in the left kidney. Prostatic calcifications.

4. Increased FDG metabolism in parts of the esophagus, stomach wall, and intestines, suggesting chronic inflammatory changes or physiological uptake; please combine with endoscopic examination.

5. Spinal degenerative changes. Mild bulging of L4/5 and L5/S1 intervertebral discs. Physiological uptake in multiple muscles throughout the body; inflammatory uptake near the right shoulder joint.

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