Whole-body 18F-FDG PET/CT scan in a patient with Colon 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.
The ventricles, sulci, fissures, and cisterns were not widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and showed no obvious abnormalities.
The maxillary sinus mucosa was thickened bilaterally, but the sinus walls were intact.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The pharyngeal recesses were symmetrical bilaterally, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, the parapharyngeal spaces were clear bilaterally, and FDG uptake was normal.
The palatine tonsils showed physiological uptake bilaterally.
No abnormal density shadows were seen in the parotid and submandibular glands bilaterally.
The laryngopharynx morphology and structure were normal.
The thyroid gland is normal in shape and size, with uneven density.
A low-density nodule with a long diameter of approximately 0.7 cm is seen in the left lobe.
FDG uptake is normal.
Several lymph nodes are seen in the bilateral deep cervical spaces and submandibular region, the largest with a short diameter of approximately 0.5 cm.
FDG metabolism is increased, SUVmax=7.0.
A soft tissue mass with spiculated and lobulated margins is seen in the anteromedial basal segment of the left lower lobe.
The CT value is approximately 34 HU, and the mass measures approximately 4.3*2.8 cm.
FDG metabolism is increased, SUVmax=9.4.
Scattered solid nodules with clear borders are seen in both lungs, with a long diameter of approximately 0.3-0.7 cm.
FDG uptake is normal.
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 density of the cardiac chambers is lower than that of the myocardium.
The esophagus showed no dilation, no significant thickening or mass in the esophageal wall, and no increased FDG uptake.
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
Plain CT scan showed decreased liver parenchymal density (CT value approximately 47 HU), and no abnormal FDG uptake.
The main portal vein showed no significant widening, and no dilation of intrahepatic or extrahepatic bile ducts.
This patient was post-cholecystectomy.
The stomach showed poor distension, no significant thickening of the gastric wall, and no significant abnormalities in FDG uptake.
The pancreas was normal in shape, with no significant abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no significant abnormalities in FDG uptake.
The spleen showed no abnormalities in shape, size, density, or FDG uptake.
Both kidneys were normal in shape and size, with several low-density lesions in each kidney, with clear borders and absent FDG uptake; the largest lesion had a long diameter of approximately 1.3 cm.
No widening of the renal pelvis, calyces, or ureter was observed, and FDG uptake showed no significant abnormalities.
Bilateral adrenal gland imaging showed no significant abnormalities.
Intestinal distension was poor, with localized thickening of the transverse colon wall and narrowing of the intestinal lumen, affecting a length of approximately 3.5 cm.
FDG metabolism was increased, with SUVmax = 15.5.
A surrounding enlarged lymph node, approximately 0.8 cm in short diameter, was observed, with increased FDG metabolism and SUVmax = 9.8.
An irregular soft tissue mass, approximately 5.6*4.0 cm in size, was observed in a localized area of the sigmoid colon, with increased FDG metabolism and SUVmax = 32.9.
Multiple small lymph nodes were observed in the localized mesenteric area and bilateral iliac vessels, with slightly increased FDG metabolism and SUVmax = 1.4.
Continuous FDG metabolism was observed in the remaining sigmoid colon and rectum, with SUVmax = 13.0.
The prostate gland was normal in size and shape, with uniform density, and no abnormal FDG metabolism was observed.
No abnormal thickening was observed in the bladder wall, and no obvious positive stones were seen within it.
No significant fluid accumulation was observed in the abdomen or pelvis.
Calcification of the nuchal ligament was present.
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies, and L4/5 and L5/S1 intervertebral disc bulges.
Multiple areas of cortical discontinuity were observed in the bilateral pubic bones.

Impression

1. a. Masses in the transverse colon and sigmoid colon with increased FDG metabolism, suggestive of colon cancer with surrounding mesenteric infiltration. Continuous increased FDG metabolism in the remaining colon and rectum suggests possible inflammatory uptake. b. Metastasis to lymph nodes around the lesion, in the local mesenteric region, and bilaterally to the iliac vessels. Anemia.

2. a. Soft tissue mass in the anterior medial basal segment of the left lower lobe with increased FDG metabolism, highly suggestive of lung cancer; please confirm with pathology. b. Scattered solid nodules in both lungs, with normal FDG uptake, suggestive of chronic inflammatory nodules; please follow up with CT to rule out metastasis.

3. Low-density nodule in the left lobe of the thyroid gland, with normal FDG uptake, suggestive of adenoma; local malignancy to be ruled out; please follow up with ultrasound and fine-needle aspiration.

4. Mild fatty liver. Post-cholecystectomy.

5. Bilateral renal cysts.

6. Spinal degenerative changes. L4/5 and L5/S1 intervertebral disc bulges. Multiple old fractures of the bilateral pubic bones.

7. Reactive hyperplasia of bilateral deep cervical and submandibular lymph nodes.

8. No obvious abnormalities were found on cranial FDG imaging. Bilateral maxillary sinusitis.

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