Whole-body 18F-FDG PET/CT scan in a patient with Gastric 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: The brain morphology and structure were normal; no abnormal density shadows were seen in the brain parenchyma, and FDG uptake was normal.
No widening was observed in the ventricles, sulci, fissures, or cisterns; local density and FDG uptake were normal; and there was no midline shift.
The bilateral eyeballs had normal morphology and contours; retrobulbar structures were clear; the bilateral optic nerves were symmetrical; and FDG uptake was normal.
The bilateral maxillary sinus mucosa was thickened, but the sinus walls were intact.
The nasopharyngeal walls were not thickened; there was no narrowing of the bilateral pharyngeal recesses or Eustachian tube openings; the bilateral infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear; and FDG uptake was normal.
The bilateral palatine tonsils were full; and FDG uptake was physiological.
The laryngopharynx morphology and structure were normal.
No abnormal contrast was observed in the bilateral parotid and submandibular glands.
The thyroid gland is normal in shape and size, with slightly uneven density; FDG uptake is normal.
Multiple lymph nodes are seen in the bilateral deep cervical spaces and submandibular region, the largest with a short diameter of approximately 0.8 cm; some show increased FDG uptake, SUVmax=3.7.
The thoracic cage is symmetrical, with the mediastinum and trachea in the midline.
One ground-glass nodule with a long diameter of approximately 0.2-0.3 cm is seen in the posterior segment of the right lower lobe, paravertebrally and in the lateral basal segment; the former has indistinct borders, and FDG uptake is normal.
Several solid miliary nodules are seen in the upper lobes of both lungs, with a few linear opacities in both lungs; calcification is seen in the right upper lobe.
Air-filled cavities are seen in the subpleural region of both upper lobes.
No pleural thickening is seen bilaterally, and there is no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes are seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette is normal, and myocardial FDG uptake is normal.
Calcification of some arterial walls (including coronary arteries).
No significant thickening or mass was observed in the esophageal wall; FDG uptake was not increased.
The liver showed no significant abnormalities in shape or size; the liver margins were smooth, and the hepatic fissures were not widened.
No significant abnormal density shadows were observed in the liver parenchyma; FDG uptake was normal.
The main portal vein showed no significant widening; no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder showed no abnormalities in shape or size; localized thickening of the gallbladder wall was observed; no positive stones or significant masses were observed; FDG uptake was normal.
The pancreas showed no abnormalities in shape; no significant abnormal density shadows were observed in the parenchyma; the main pancreatic duct was not widened; FDG uptake was normal.
The spleen showed no abnormalities in shape or size; density and FDG uptake were normal.
Both kidneys showed no abnormalities in shape or size; no significant abnormal density shadows were observed in the renal parenchyma; FDG uptake was normal.
No widening of the renal pelvis, calyces, or ureters was observed bilaterally, and no positive stones were found within them.
The bilateral adrenal glands showed no abnormalities in morphology or density, and FDG uptake was normal.
Post-gastric cancer treatment: Slight thickening of the gastric wall on the greater curvature of the residual stomach was observed, with increased FDG uptake (SUVmax = 3.1).
Increased FDG uptake was observed in the right upper quadrant of the intestinal anastomosis wall (SUVmax = 4.4).
Segmental increases in FDG uptake were observed in the remaining intestinal segments (SUVmax = 8.2).
Small lymph nodes were observed in the retroperitoneum and mesentery, the largest with a short diameter of approximately 0.5 cm, and FDG uptake was normal.
A small amount of fluid was observed in the pelvic cavity.
The prostate showed no abnormalities in morphology or size, with a transverse diameter of approximately 4.4 cm.
No obvious abnormal density shadows were observed in the parenchyma, and FDG uptake was normal.
The bladder was adequately filled, and no obvious positive stones were found within it.
The spinal alignment is normal, with some vertebral body margin osteophytes, and L2/3, L3/4, L4/5, and L5/S1 intervertebral disc bulges.
FDG uptake of the bones is normal.

Impression

1. Post-gastric cancer treatment: Slight thickening of the gastric wall on the greater curvature of the residual stomach with increased FDG metabolism, consistent with gastric cancer findings based on pathology. Reactive hyperplasia of retroperitoneal and mesenteric lymph nodes. Small amount of pelvic effusion.

2. Increased FDG metabolism at the intestinal anastomosis site in the right upper quadrant; segmental FDG metabolism increases in the remaining intestinal segments, without obvious space-occupying lesions. Physiological uptake or chronic inflammation is considered; please follow up with endoscopy.

3. Ground-glass nodules in the paravertebral and lateral basal segments of the right lower lobe; solid miliary nodules in both upper lobes. FDG metabolism is normal; chronic inflammatory nodules are considered; please have an annual HRCT scan. A few fibrotic lesions in both lungs; calcification in the right upper lobe. Paraseptal emphysema in both upper lobes. Partial arteriosclerosis (including coronary arteries).

4. Localized thickening of the gallbladder wall, FDG metabolism normal, polyp suspected, further ultrasound examination recommended to rule out other possibilities.

5. Partial cervical, thoracic and lumbar vertebrae osteophyte formation. L2/3, L3/4, L4/5 and L5/S1 intervertebral disc bulge.

6. No obvious abnormalities seen on cranial scintigraphy. Bilateral maxillary sinusitis. Bilateral cervical lymph node reactive hyperplasia is highly probable.

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