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, a whole-body PET/CT scan was performed.
The whole-body scan showed:Normal brain morphology and structure, with punctate low-density lesions in the deep bilateral cerebral regions; no significant abnormalities were observed in FDG uptake.
Enlargement of the ventricles, sulci, fissures, and cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
Normal eyeball morphology and contours bilaterally; clear retrobulbar structures; symmetrical optic nerves bilaterally; no abnormal FDG uptake.
No thickening of the paranasal sinus mucosa; sinus walls intact.
No thickening of the nasopharyngeal wall; symmetrical palatine tonsils bilaterally; physiological FDG uptake.
Normal laryngopharyngeal morphology and structure.
Normal morphology and density of the bilateral parotid and submandibular glands; physiological FDG uptake.
Post-thyroid nodule surgery; the thyroid gland had an irregular shape and uneven density; no abnormalities were observed in FDG uptake.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region.
Multiple solid micronodules and ground-glass opacities were observed in both lungs, the largest being located in the apical-posterior segment of the left upper lobe, with a long diameter of approximately 0.4 cm.
FDG uptake was normal.
A few linear and flocculent density shadows were also observed in both lungs, with no abnormal FDG uptake.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal, with a small amount of pericardial effusion.
Calcification of some arterial walls (including the coronary arteries) was observed.
Both breasts were normal, and FDG metabolism was normal.
The liver was normal in shape and size, with smooth borders and no widening of the hepatic fissure.
High-density shadows were observed in the liver parenchyma on plain CT scan, with no abnormal FDG uptake.
The main portal vein was not significantly widened, and no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder was normal in shape and size, with no thickening of the gallbladder wall.
A crescent-shaped, slightly high-density shadow was observed at the gallbladder fundus, with no abnormal local FDG uptake.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct was not widened, and FDG uptake was not significantly abnormal.
The spleen was normal in shape, size, density, and FDG uptake.
Cystic low-density lesions were observed in both kidneys, the largest being in the left kidney, with a long diameter of approximately 4.1 cm and clear borders.
FDG metabolism was absent, and punctate dense shadows were seen within the left renal calyx.
The right renal pelvis, calyces, and ureter were not widened, and FDG uptake was not significantly abnormal.
Both adrenal glands were thickened, with increased FDG metabolism; SUVmax = 2.6.
Postoperatively, following gastric cancer surgery, no significant thickening was observed at the anastomosis site, no significant abnormalities were seen in FDG metabolism, and no definite space-occupying lesions were found in the abdominopelvic cavity.
Localized dilation of the upper and middle esophagus with fluid retention was observed, but no significant thickening of the esophageal wall was seen, and FDG uptake was not increased.
Intestinal distension was poor, with no significant thickening or mass in the intestinal wall; FDG uptake was increased in some intestinal segments, with SUVmax=5.2.
Postoperative changes were observed in the anterior abdominal wall, but no significant abnormalities were seen in FDG uptake.
The uterus was normal in shape and size, with no abnormal density shadows and no abnormal FDG uptake.
No significant abnormalities were seen in the bilateral adnexa.
The bladder was poorly distended, containing a homogeneous high-density fluid shadow.
A small amount of pelvic effusion was observed.
Scoliosis was present, but the spinal alignment was normal, with some vertebral marginal osteophytes.
The spinal canal was enlarged at the S2 vertebral body level, with a cystic lesion measuring approximately 2.7 1.6 cm inside.
There was bulging of the L4/5 and L5/S1 intervertebral discs, and no abnormalities were found in FDG uptake.

Impression

1. a. Postoperative changes after gastric cancer surgery, no signs of tumor recurrence in the surgical area, no obvious space-occupying lesions in the abdominopelvic cavity; fluid retention in the upper and middle esophagus; increased FDG uptake in some intestinal segments, considered inflammatory or physiological uptake. Endoscopic follow-up is recommended. b. Small amount of pelvic effusion. Postoperative changes in the anterior abdominal wall.

2. Nodular goiter, ultrasound follow-up is recommended.

3. Multiple solid micronodules and ground-glass opacities in both lungs, considered chronic inflammatory nodules or atypical adenomatous hyperplasia, annual HRCT follow-up is recommended. Scattered chronic inflammation and sequelae in both lungs. Partial arteriosclerosis (including coronary arteries). Small amount of pericardial effusion.

4. Intrahepatic calcifications. Concentrated bile in the gallbladder. Bilateral renal cysts, small stone in the left kidney. Bilateral adrenal hyperplasia is highly probable; a follow-up MRI with contrast is recommended to rule out other possibilities. Residual contrast agent in the bladder.

5. Scoliosis, degenerative changes in the spine. Sacral canal cyst, L4/5 and L5/S1 intervertebral disc bulge.

6. Age-related brain changes, deep lacunar infarcts in the brain.

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