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: Normal brain morphology and structure, with patchy low-density shadows in the bilateral basal ganglia; no significant abnormalities were observed in FDG uptake.
Enlargement of the ventricles, sulci, fissures, and cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and showed no significant abnormalities.
Thickening of the mucosa of the bilateral ethmoid sinuses and the right maxillary sinus was observed, but the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed; no abnormalities were observed in FDG uptake.
The bilateral pharyngeal recesses were symmetrical; there was no stenosis of the Eustachian tube openings; the infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear, and no abnormalities were observed in FDG uptake.
The bilateral palatine tonsils showed physiological uptake.
The laryngopharynx was normal in morphology and structure.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with slightly uneven density; no abnormalities were observed in FDG uptake.
Several small lymph nodes were observed in the bilateral deep cervical spaces and submandibular region, with normal FDG metabolism.
Multiple solid nodules were present in both lungs, the largest of which, measuring approximately 1.3*0.9cm, was located adjacent to the horizontal fissure in the right middle lobe, showing increased FDG metabolism (SUVmax = 5.5).
The interlobular septa in the lower lobes of both lungs were thickened, with slightly increased FDG metabolism (SUVmax = 1.6).
The pleura was slightly thickened bilaterally, but there was no pleural effusion or pneumothorax.
Multiple lymph nodes were observed in the bilateral hilar regions, pretracheal spaces, para-aortic arch, aortopulmonary window, and subcarinal region, the largest with a short diameter of approximately 0.6cm, showing slightly increased FDG metabolism (SUVmax = 4.5).
Calcification of some arterial walls (including coronary arteries) was observed.
The cardiac silhouette was normal.
The esophagus was not dilated, and the wall was not significantly thickened or swollen; FDG uptake was not increased.
The liver shows disproportionate left and right lobes, irregular liver margins, and widened hepatic fissures.
Plain CT scan shows no obvious abnormal density shadows in the liver parenchyma, and FDG uptake is normal.
The main portal vein is not significantly widened, and no dilation of intrahepatic or extrahepatic bile ducts is observed.
The gallbladder is normal in shape and size, with a uniform dense shadow in the neck, approximately 1.2 cm in long diameter.
The gallbladder wall is not thickened, and local FDG uptake is 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 normal.
The spleen is normal in shape, size, density, and FDG uptake.
Both kidneys are atrophied, with a punctate dense shadow in the left kidney.
The renal pelvis, calyces, and ureter are not widened, and FDG uptake is normal.
Bilateral adrenal glands show no obvious abnormalities on contrast.
The stomach is poorly distended, with thickened walls and slightly increased FDG metabolism (SUVmax = 4.3).
The intestines were poorly filled.
There was localized thickening of the intestinal wall near the ileocecal junction of the ascending colon, presenting as a soft tissue density shadow with a rough surrounding serosal surface.
FDG metabolism in the lesion was increased (SUVmax = 12.8).
The surrounding mesentery was thickened with several lymph nodes visible, the largest being approximately 0.4 cm in short diameter, showing slightly increased FDG metabolism (SUVmax = 2.9).
After delayed scanning, the lesion near the ileocecal junction of the ascending colon showed no significant change, but the FDG uptake was even higher (SUVmax = 17.89).
The surrounding mesenteric lymph nodes showed even higher FDG uptake (SUVmax = 4.4).
Continuous FDG metabolism was increased in the transverse colon, sigmoid colon, and rectum (SUVmax = 9.0).
The prostate was full and contained calcifications, with uneven FDG uptake and increased FDG metabolism (SUVmax = 6.5).
The bladder was generally full, with no obvious positive stones.
Bilateral hydrocele was present.
No enlarged lymph nodes were seen in the abdominal cavity or retroperitoneal region.
No significant effusion was observed in the abdominal or pelvic cavities.
Bilateral subcutaneous calcifications in the buttocks.
Spinal alignment is normal, with calcification of the nuchal ligament.
Osteophyte formation is present at the margins of some vertebral bodies and facet joints, with L4/5 and L5/S1 disc bulging.
No abnormal FDG metabolism was observed in the entire skeleton.

Impression

1. Thickening of the ascending colon near the ileocecal junction with increased FDG uptake, thickening of the surrounding mesentery with several lymph nodes visible. Delayed scanning showed no significant change in the lesion near the ileocecal junction, but FDG uptake values in all lesions remained increased, suggesting possible colon cancer with surrounding mesenteric lymph node metastasis. A follow-up colonoscopy is recommended to rule out other possibilities; inflammatory uptake in the colon is also possible.

2. Liver cirrhosis findings, gallstones in the gallbladder neck; no space-occupying lesions or foci of increased FDG uptake were observed in the liver, pancreas, or biliary system. Clinical and MRI findings are recommended.

3. Thickening of the gastric wall with mildly increased FDG uptake is suggested, possibly due to inflammatory uptake. A follow-up gastroscopy is recommended.

4. Multiple solid nodules in both lungs with increased FDG uptake are suggested, possibly due to inflammatory nodules. Clinical and old film comparison and follow-up CT scan are recommended. Interstitial pneumonia in the lower lobes of both lungs. Slight pleural thickening bilaterally. Reactive hyperplasia of hilar and mediastinal lymph nodes bilaterally. Calcification of some arterial walls (including coronary arteries).

5. Bilateral renal atrophy, small renal stone in the left kidney. Benign prostatic hyperplasia with calcification, uneven FDG metabolism; please follow up with PSA levels. Bilateral hydrocele.

6. Spinal degenerative changes. L4/5 and L5/S1 intervertebral disc bulge. Bilateral subcutaneous calcifications in the buttocks.

7. Bilateral basal ganglia ischemia. Age-related brain changes. Bilateral ethmoid sinusitis and right 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