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: The brain morphology and structure were normal; no abnormal density shadows were seen in the brain parenchyma, and FDG uptake was not significantly abnormal.
The ventricles, sulci, fissures, and cisterns were not widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and without significant abnormalities.
The paranasal sinuses showed no thickening of the mucosa, and the sinus walls were intact.
The nasopharyngeal wall showed no thickening, and FDG uptake was not abnormal.
The pharyngeal recesses were symmetrical, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, and the parapharyngeal spaces were clear with no abnormal FDG uptake.
The palatine tonsils showed physiological uptake.
No abnormal density shadows were seen in the parotid and submandibular glands.
The laryngopharynx was normal in morphology and structure.
The thyroid gland is normal in shape and size, with uniform density, and FDG uptake is normal.
No enlarged lymph nodes were seen in the bilateral deep cervical spaces or submandibular region.
Several nodules were seen in the right lung, most prominent in the right middle lobe, with a long diameter of approximately 0.2-0.4 cm, clear borders, and FDG metabolism was normal.
A few speckled and linear lesions were also seen in both lungs, with FDG metabolism normal.
No pleural thickening was seen bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes were seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
Some arterial walls showed calcification (including the coronary arteries).
No esophageal dilatation was seen, and no significant thickening or mass was seen in the esophagus; FDG uptake was not increased.
Both breasts were normal, and FDG metabolism was normal.
The liver showed no obvious abnormalities in shape and size, with smooth liver margins and no widening of the hepatic fissures.
Multiple cystic lesions were observed within the liver, the largest being approximately 1.5 cm in length, with absent FDG uptake.
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 and size, with slightly thickened walls and punctate dense shadows within the lumen; FDG uptake was normal.
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 normal.
The spleen showed no abnormalities in shape, size, density, or FDG uptake.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the parenchyma; the renal pelvis, calyces, and ureters were not widened, and FDG uptake was normal.
Bilateral adrenal gland imaging showed no obvious abnormalities.
Post-gastric cancer surgery, the anastomotic wall is slightly thickened, with increased FDG metabolism (SUVmax = 3.6); continuous FDG metabolism in the colon and rectum is also increased (SUVmax = 8.9).
The abdomen is rounded; a large cystic-solid mass with septa is seen in the abdominopelvic cavity, predominantly cystic, measuring approximately 28.5 20.6 12.5 cm, with increased FDG metabolism in the cyst wall (SUVmax = 3.2); the uterus is compressed, and an IUD is seen in the uterine cavity.
The bladder is generally full, with no obvious positive stones.
A small amount of fluid is present in the abdominopelvic cavity.
The spinal alignment is normal, with minor osteophyte formation at the margins of some vertebral bodies; L4/5 and L5/S1 intervertebral disc bulges.
Systemic bone marrow FDG uptake is increased (SUVmax = 4.6).

Impression

1. Post-gastric cancer surgery, slight thickening of the intestinal wall at the anastomosis site and increased FDG metabolism suggest anastomotic inflammation or physiological uptake; follow-up gastroscopy is recommended.

2. Large cystic-solid mass in the abdominopelvic cavity with increased FDG metabolism in the cyst wall, suggestive of ovarian cystadenoma, ovarian cancer to be ruled out; please correlate with clinicopathology. Small amount of fluid in the abdominopelvic cavity.

3. Several small chronic inflammatory nodules in the right lung; follow-up is recommended to rule out other mixed nodules. A small amount of chronic inflammation and old lesions in both lungs. Calcification of some arterial walls (including coronary arteries).

4. Liver cyst. Chronic cholecystitis; gallstones.

5. Continuous increased FDG metabolism in the colon and rectum, suggestive of inflammatory or physiological uptake; colonoscopy is recommended.

6. Mild degenerative changes in the spine. L4/5, L5/S1 intervertebral disc bulge. Increased FDG uptake throughout the bone marrow suggests reactive bone marrow hyperplasia.

7. Cranial scintigraphy showed no abnormalities.

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