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, a whole-body PET/CT scan was performed.
The whole-body scan showed: A patchy low-density lesion with clear borders was seen in the right occipital lobe, with no FDG uptake.
Other deep cerebral regions showed punctate low-density shadows, with no significant abnormalities in FDG uptake.
Some ventricles, sulci, fissures, and cisterns were slightly widened; the ventricles were symmetrical, and there was no midline shift.
The morphology and outline of both eyeballs were normal; the retrobulbar structures were clear; the optic nerves were symmetrical, and there was no abnormal FDG uptake.
The mucosa of the right maxillary sinus and both bilateral ethmoid sinuses was slightly thickened, with no abnormal FDG uptake; the sinus walls were intact.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The palatine tonsils were symmetrical, and FDG uptake was physiological.
The morphology and structure of the laryngopharynx were normal.
The parotid and submandibular glands were normal in morphology and density, with physiological FDG uptake.
The thyroid gland is normal in shape and size, with uniform density, and no abnormal FDG uptake.
No significantly enlarged lymph nodes were seen in the bilateral deep cervical spaces, submandibular region, and submental region.
The thoracic cage is symmetrical, with increased lung markings and increased translucency in both lung fields; several solid micronodules are seen in both lungs, some of which are calcified, the largest being located in the posterior segment of the left lower lobe, with a long diameter of approximately 0.3 cm, and no abnormal FDG uptake was observed.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
Several lymph nodes were visible in the bilateral hilum and mediastinum (right upper mediastinum, paratracheal region, paraaortic arch region, pretracheal region, posterior vena cava region, aortic window, and subcarinal region), the largest being approximately 0.9 cm in short diameter, with increased FDG uptake, SUVmax = 5.8.
No abnormalities were observed in the cardiac silhouette.
Some arterial walls were calcified (including the coronary arteries).
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.
A small nodular calcification was observed in the diaphragmatic dome of the right lobe of the liver on plain CT scan; FDG uptake was normal.
The main portal vein showed no significant widening, and no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder showed no abnormalities in shape or size, with slightly thickened and roughened walls and punctate high-density lesions within the gallbladder; local FDG uptake was normal.
The pancreas was normal in shape, with no significant 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 are normal in shape and size.
A cystic low-density lesion is seen in the right kidney, with a long diameter of approximately 1.5 cm and clear borders, but FDG uptake is absent.
No widening of the renal pelvis, calyces, or ureters is observed bilaterally.
No significant abnormalities are seen on bilateral adrenal gland imaging.
The stomach is generally full, with no significant thickening of the stomach wall and no significant abnormalities in FDG uptake.
The intestinal wall at the junction of the descending colon and sigmoid colon is slightly thickened, with increased FDG uptake (SUVmax = 14.5), and the surrounding fat spaces are slightly blurred.
There is localized symmetrical narrowing of the sigmoid colon near the rectum, with increased FDG uptake (SUVmax = 18.1); the ileocecal junction wall is also slightly thickened, with increased FDG uptake (SUVmax = 19.5).
The remaining intestines are poorly full, with no significant thickening or mass in the intestinal wall.
Continuous increased FDG uptake is observed in the remaining colonic segments (SUVmax = 22.1).
Several lymph nodes were observed bilaterally in the pelvic walls, beside the iliac vessels, in the retroperitoneum, in the hilar space, and at the porta hepatis.
The largest had a short diameter of approximately 0.6 cm.
Some lymph nodes showed increased FDG uptake, with an SUVmax of 3.3.
No significant fluid accumulation was observed in the abdomen or pelvis.
The prostate was of normal size, with several calcifications within the parenchyma.
FDG uptake was not abnormally increased.
Bladder distension was poor, and no obvious positive stones were observed.
The spinal alignment was unstable, with slight posterior displacement of the L2, L3, and L4 vertebral bodies.
Osteophyte formation was observed at the margins of some vertebral bodies, and calcification was visible in the nuchal ligament.
The relative margins of the L4/5 and L5/S1 vertebral bodies were rough and showed increased density, but FDG uptake was not abnormal.
There was a bulging L3/4 intervertebral disc and a herniated L4/5 intervertebral disc with partial calcification, but FDG uptake was not abnormal.
A roundish low-density lesion was observed in the proximal segment of the right femur, with a long diameter of approximately 1.7 cm and clear borders.
No abnormalities were found in FDG uptake.

Impression

1. a. Slight thickening of the intestinal wall at the junction of the descending colon and sigmoid colon with increased FDG metabolism, consistent with pathological findings of colorectal cancer, with a high probability of involvement of the serosa. Please correlate with clinical findings. b. Localized symmetrical narrowing of the sigmoid colon near the rectum with increased FDG metabolism, likely due to intestinal contraction and physiological uptake; slight localized thickening of the ileocecal wall with increased FDG metabolism, suggesting a possible space-occupying lesion, but physiological changes need to be ruled out. Please analyze the above in conjunction with enhanced CT scans. c. Reactive hyperplasia of lymph nodes in the bilateral pelvic walls, parailiac vessels, retroperitoneum, hilar space, and hepatic hilum. d. Continuous increased FDG metabolism in the remaining colon, suggesting physiological uptake or inflammatory changes. Please follow up with colonoscopy.

2. Chronic inflammatory micronodules in both lungs. Emphysema in both lungs. Chronic inflammatory lymph nodes in the bilateral hilar and mediastinal regions.

3. Calcification of some arterial walls (including coronary arteries).

4. Liver calcifications. Small gallstones, chronic cholecystitis. Right renal cyst. Prostatic calcifications.

5. Spinal degeneration, L2-4 vertebral instability, L4/5 and L5/S1 vertebral endplate inflammation. L3/4 intervertebral disc bulge, L4/5 intervertebral disc herniation, partial calcification. Benign bone disease of the proximal right femur.

6. Right occipital lobe softening lesion, bilateral deep lacunar infarcts, mild age-related brain changes; please correlate with MRI. Minor inflammation of the right maxillary sinus and bilateral ethmoid sinuses.

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