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.
There was no widening of the ventricles, sulci, fissures, or cisterns; local density and FDG uptake were normal; and there was no midline shift.
The bilateral eyeballs had normal morphology and outline; the retrobulbar structures were clear, and FDG uptake was normal.
The paranasal sinuses showed no thickening of the mucosa, and the sinus walls were intact.
The soft tissue of the nasopharyngeal walls showed no significant thickening; the bilateral pharyngeal recesses were symmetrical, and FDG uptake was normal.
FDG uptake was increased in the left mandibular region (SUVmax = 7.4).
The oropharynx and laryngopharynx showed no abnormalities in morphology and structure, and the parapharyngeal spaces were clear.
The parotid and submandibular glands were normal in size, shape, and density, and FDG uptake was normal.
The thyroid gland was normal in shape and size, with no obvious abnormal density shadows, and FDG uptake was normal.
No obviously enlarged lymph nodes were seen in the bilateral deep cervical spaces, submandibular region, and submental region, and FDG uptake was normal.
A ground-glass nodule was seen in the medial segment of the right middle lobe and the anterior basal segment of the right lower lobe; the latter was larger, with a long diameter of approximately 0.3 cm, relatively clear borders, and a maximum CT value of approximately -716 HU, and FDG uptake was normal.
Several small nodules (diameter <0.4 cm) were seen in the right upper lobe and left lower lobe, with clear borders, and FDG uptake was normal.
A few linear shadows were seen in both lungs, and FDG uptake was normal.
No obvious thickening of the pleura was seen bilaterally, and no obvious pleural effusion was seen bilaterally.
No obvious enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions, and FDG uptake was not significantly increased.
The heart size was normal.
A superior vena cava catheter is in place.
The liver morphology and size were normal, with smooth borders and no widening of the hepatic fissure.
Two slightly low-density nodular lesions were observed in the left lateral lobe and the lower segment of the right posterior lobe; the latter was larger, approximately 1.8 cm in diameter, with indistinct borders, and showed increased FDG uptake (SUVmax = 15.7).
An oval-shaped low-density lesion with a long axis of approximately 0.7 cm was observed in the lower segment of the right anterior lobe, with decreased FDG uptake.
Punctate calcifications were observed under the capsule in the lower segment of the right posterior lobe.
No dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder was poorly filled, with slightly thickened and roughened walls, and high-density nodular lesions were observed within the lumen; FDG uptake in the gallbladder fossa was normal.
The peripancreatic spaces are clear, with no obvious abnormal density shadows seen in the parenchyma.
The pancreatic duct is not widened, and FDG uptake is normal.
The spleen is generally normal in shape and size, with no abnormalities in density or FDG uptake.
Two small solid nodules are seen around the spleen, with clear borders and no abnormal FDG uptake; the larger one is approximately 0.6 cm in diameter.
The bilateral adrenal glands are normal in shape, size, and density, with no abnormalities in local FDG uptake.
The kidneys are normal in shape and size, with several roundish low-density lesions seen in the renal parenchyma.
The larger one is located on the left side, approximately 1.4 cm in diameter, with decreased or absent FDG uptake.
The renal pelvis, calyces, and ureters are not widened, and no positive stones are seen locally.
The prostate is normal in shape and size, and no focal abnormal increases in FDG uptake are observed.
The patient presented with changes consistent with a sigmoid colon cancer resection, partial small bowel resection, ileocecal resection, and terminal ileostomy.
Scattered multiple soft tissue nodules and masses were observed around the anastomoses, in the lower abdomen, and in the mesenteric region of the pelvis.
Some nodules were fused, with the largest measuring approximately 10.6 8.2 9.7 cm.
A patchy low-density lesion with decreased or absent FDG uptake was seen in the central area, while the remaining solid portion showed increased FDG uptake (SUVmax = 20.9).
The bladder floor was also involved, and the boundary between the lesion and adjacent intestinal segments was unclear.
No obvious signs of obstruction were observed in the remaining intestinal segments, with some showing linear increases in FDG uptake (SUVmax = 4.3).
Enlarged lymph nodes were observed bilaterally along the iliac vessels and in the retroperitoneal para-aortic region, with increased FDG uptake (SUVmax = 22.8).
No significant effusion was observed in the abdominopelvic cavity.
The esophagus showed no dilation, wall thickening, or mass, and no increased FDG uptake was observed.
The stomach is well-filled, with slight thickening of the gastric wall in the antrum; FDG uptake is normal.
The spinal alignment is normal, with minor osteophyte formation at the margins of some lumbar vertebrae.
FDG uptake in the cervical erector spinae muscles is increased, with SUVmax = 6.1.

Impression

1. a. Changes from "sigmoid colon cancer resection + partial small bowel resection + ileocecal resection + terminal ileostomy", multiple soft tissue lesions around the anastomoses of the intestines and in the abdominopelvic cavity with significantly increased FDG metabolism, considered to be metastatic tumors, with involvement of the adjacent bladder floor and intestines. b. Metastatic tumors in the left lateral lobe of the liver and the lower segment of the right posterior lobe of the liver. Metastasis to the bilateral iliac vessels and retroperitoneal para-aortic lymph nodes.

2. Linearly increased FDG metabolism in the remaining intestinal tract, considered to be physiological uptake. Poor ventricular relaxation, no increased FDG metabolism observed.

3. Chronic inflammatory ground-glass nodules or atypical adenomatous hyperplasia in the middle and lower lobes of the right lung, chronic inflammatory solid micronodules in the upper lobe of the right lung and the lower lobe of the left lung. A few fibrotic lesions in both lungs.

4. Cyst in the lower segment of the right anterior lobe of the liver; subcapsular calcification in the lower segment of the right posterior lobe of the liver. Gallstones; chronic cholecystitis. Accessory spleen. Bilateral renal cysts.

5. Mild osteophyte formation in some lumbar vertebrae. Physiological uptake of the erector spinae muscles in the cervical spine.

6. No obvious abnormalities were found on cranial scintigraphy. Possible periodontitis in the left lower molar region; please consult a specialist.

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