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.
The eyeballs were symmetrical and showed no significant abnormalities.
Thickening of the ethmoid sinus mucosa was observed bilaterally, but not in the remaining 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 bilaterally; there was no stenosis of the Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear; and no abnormalities were observed in FDG uptake.
The palatine tonsils showed physiological uptake.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The laryngopharynx was normal in morphology and structure.
The thyroid gland was normal in morphology and size, with slightly uneven density; no abnormalities were observed in FDG uptake.
No enlarged lymph nodes were observed in the bilateral deep cervical spaces or submandibular region.
Solid nodules with clear borders, approximately 0.2-0.4 cm in long diameter, were observed in the lower lobe of the left lung and the upper lobe of the right lung.
FDG uptake was normal in both nodules.
No pleural thickening was observed bilaterally.
A small amount of pleural effusion was observed in the left pleural cavity, and a large amount in the right pleural cavity.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac chamber density was lower than that of the myocardium.
No esophageal dilation, significant wall thickening, or mass was observed; FDG uptake was normal.
No significant abnormalities were observed in either breast; FDG metabolism was normal.
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
Plain CT scan showed no significant abnormal density shadows in the liver parenchyma; FDG uptake was normal.
No significant widening of the main portal vein was observed; no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder showed no abnormalities in shape or size, with no thickening of the gallbladder wall; local FDG uptake was normal.
The pancreas is normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct is not widened, and FDG uptake is not significantly abnormal.
The spleen is normal in shape, size, density, and FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is not significantly abnormal.
The bilateral adrenal glands show no obvious abnormalities on contrast.
The stomach is poorly distended, with no obvious thickening of the gastric wall, and FDG uptake is not significantly abnormal.
The intestines are poorly distended, with localized thickening and narrowing of the descending colon wall, measuring approximately 3.2*3.1 cm, showing increased FDG metabolism (SUVmax = 17.3); multiple small lymph nodes are present around the colon, showing slightly increased FDG metabolism (SUVmax = 2.0).
The bladder is generally full, with no obvious positive stones.
The uterus is irregular in shape and uneven in density, with no abnormally increased FDG uptake.
Two irregularly shaped soft tissue masses were observed in the pelvic cavity, containing multiple areas of liquefied necrosis.
The left mass measured approximately 7.2*6.8*14.3cm, and the right mass measured approximately 16.1*9.3*18.7cm.
FDG metabolism was elevated, with an SUVmax of 15.0.
The greater omentum and mesentery showed flocculent thickening, with elevated FDG metabolism and an SUVmax of 3.2.
A nodule with a short diameter of approximately 0.9cm was observed in the rectouterine pouch, with elevated FDG metabolism and an SUVmax of 8.7.
Significant fluid accumulation was present in the abdominal and pelvic cavities.
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies and L4/5 disc bulging.
Localized elevated FDG metabolism was observed in the right humeral head, with an SUVmax of 3.2.

Impression

1. a. Thickening and narrowing of the descending colon wall with elevated FDG metabolism suggest colon cancer with surrounding infiltration; please confirm with colonoscopy and pathology. b. Bilateral pelvic lesions with elevated FDG metabolism suggest bilateral ovarian metastases, more likely than primary ovarian cancer; please consider clinical tumor markers and medical history. Metastasis to the peritoneum and rectouterine pouch. Significant abdominal and pelvic effusions. c. Elevated FDG metabolism in the right humeral head; metastasis to be ruled out; MRI is recommended.

2. Possible multiple uterine fibroids; please follow up with ultrasound.

3. Possible chronic inflammatory nodules in the left lower lobe and right upper lobe; please follow up with CT. Small amount of pleural effusion on the left, large amount on the right.

4. Anemia.

5. Partial vertebral osteophyte formation. L4/5 disc bulge.

6. No obvious abnormalities seen on cranial scintigraphy. Bilateral ethmoid 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