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 images showed: Normal brain morphology and structure; no abnormal density shadows were seen in the brain parenchyma; no significant abnormalities were observed in FDG uptake.
No widening was observed in the ventricles, sulci, fissures, or cisterns; the ventricles were symmetrical, and there was no midline shift.
Both eyeballs were symmetrical and showed no significant abnormalities.
Thickening of the right maxillary sinus mucosa was observed, but no thickening was observed in the mucosa of the other paranasal sinuses; the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall; no abnormalities were observed in FDG uptake; the pharyngeal recesses were symmetrical; there was no stenosis of the Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the parapharyngeal spaces were clear bilaterally, and no abnormalities were observed in FDG uptake.
Both palatine tonsils showed physiological uptake.
No abnormalities were observed in the morphology and structure of the laryngopharynx.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with uniform density; no abnormalities were observed in FDG uptake.
Multiple solid nodules were observed in both lungs, the largest being located in the lateral basal segment of the left lower lobe, with a long diameter of approximately 0.4 cm and clear borders.
FDG metabolism was normal.
A few linear and punctate lesions were also observed in both lungs, with no abnormal FDG metabolism.
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.
The esophagus was not dilated, and the esophageal wall showed no significant thickening or mass; FDG uptake was not increased.
The liver's shape and size were normal, with smooth borders.
Multiple low-density lesions were observed within the liver, the largest with a long diameter of approximately 2.5 cm, showing increased FDG metabolism (SUVmax = 10.3).
A small cystic lesion, approximately 0.4 cm in long diameter, was also observed within the liver, with absent FDG metabolism.
The main portal vein was not significantly widened, and no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder's shape and size were normal, the gallbladder wall was not thickened, and local FDG uptake was normal.
The pancreas is normal in shape, with no obvious abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no obvious abnormalities in FDG uptake.
The spleen is normal in shape, size, density, and FDG uptake.
The right kidney is normal in shape and size, with no obvious abnormal density shadows in the parenchyma, no widening of the renal pelvis, calyces, or ureter, and no obvious abnormalities in FDG uptake.
Bilateral adrenal glands show no obvious abnormalities on contrast.
The stomach is poorly distended, with no obvious thickening of the gastric wall and no obvious abnormalities in FDG uptake.
The intestines are poorly distended, with irregular thickening of the sigmoid colon presenting as a soft tissue mass, approximately 3.8 3.0 cm in size, showing increased FDG metabolism (SUVmax = 15.2).
The serosal surface of the lesion is rough.
Multiple enlarged lymph nodes are seen in the surrounding mesentery, presacral region, beside the left iliac vessels, beside the abdominal aorta, and in the left supraclavicular fossa, with a short diameter of approximately 1.3 cm, showing increased FDG metabolism (SUVmax = 7.2).
The lower segment of the left ureter shows slight thickening of the ureter wall, exhibiting a cup-shaped narrowing, leading to hydronephrosis at the upper level.
FDG uptake at the lesion is increased (SUVmax = 4.3).
The prostate is of normal size and homogeneous density, with no abnormally increased FDG uptake.
The bladder is generally full, with no obvious positive stones.
No significant fluid accumulation is observed in the abdomen or pelvis.
The spinal alignment is normal, with some vertebral body margin osteophytes, nuchal ligament calcification, and L4/5 and L5/S1 intervertebral disc bulges, but FDG uptake is normal.
No abnormal FDG metabolism is observed in the entire skeletal system.

Impression

1. a. Irregular thickening of the sigmoid colon, presenting as a soft tissue mass, with increased FDG metabolism, suggestive of colon cancer. Multiple lymph node metastases are present in the surrounding mesentery, presacral region, left iliac vessels, para-aortic region, and left supraclavicular fossa. b. Multiple liver metastases.

2. Slight thickening of the lower segment of the left ureter, presenting as a cup-shaped stenosis, leading to hydronephrosis at the upper level. Increased FDG uptake in the lesion suggests a space-occupying lesion; specialist examination is recommended.

3. Multiple small chronic inflammatory nodules (solid) in both lungs are highly probable; please use CT comparison to rule out metastasis. A few chronic inflammations and old lesions in both lungs.

4. Small liver cysts.

5. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulges.

6. No abnormalities were found on cranial scintigraphy. Chronic inflammation of the right maxillary sinus.

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