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:Normal brain morphology and structure, with punctate low-density lesions in the deep bilateral cerebral regions; no significant abnormalities in FDG metabolism.
Widening of the ventricles, sulci, fissures, and cisterns; symmetrical bilateral ventricles; no midline shift.
Diffusely decreased white matter density around the bilateral lateral ventricles; no abnormalities in FDG metabolism.
Normal bilateral eyeball morphology and contour; clear retrobulbar structures; symmetrical bilateral optic nerves; no abnormal FDG metabolism.
Slight thickening of the mucosa in part of the right maxillary sinus; intact sinus wall; absent FDG metabolism.
No stenosis of the bilateral pharyngeal recesses and Eustachian tube openings; normal structures of the infratemporal fossa and pterygopalatine fossa; clear bilateral parapharyngeal spaces; no abnormalities in FDG metabolism.
Pharyngeal and laryngopharyngeal FDG metabolism was observed.
No abnormal contrast was seen in the bilateral parotid and submandibular glands.
The thyroid gland is normal in shape and size, with slightly uneven density; FDG metabolism is normal.
Small lymph nodes are visible in the right supraclavicular fossa, the largest being approximately 0.5 cm in short diameter; FDG metabolism is increased, SUVmax = 3.9.
An irregular soft tissue density mass is seen near the right hilum at the bronchial opening in the right upper lobe, with indistinct borders, measuring approximately 4.4*3.7 cm in cross-section; FDG metabolism is increased, SUVmax = 12.8; atelectasis is present in part of the anterior segment of the right upper lobe.
Scattered solid nodules are present in both lungs, with regular shape and clear borders, approximately 0.3?.0 cm in long diameter; the largest is located in the lateral and medial basal segments of the right lower lobe; FDG uptake is increased, SUVmax = 3.9.
Calcifications are present in the posterior segment of the left lower lobe and the anterior basal segment of the right lower lobe.
A few linear and flocculent density shadows are also seen in both lungs; FDG metabolism is normal.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
Lymph nodes were visualized in the right hilar and mediastinal areas (right upper mediastinal inlet, pretracheal vena cava, and aortic window), the largest measuring approximately 1.0 cm in short diameter, with increased FDG metabolism (SUVmax = 8.7).
No cardiac abnormalities were observed.
Some arterial walls showed calcification.
Bilateral breasts showed slightly dense fibrous glands, with calcification in the left breast; FDG metabolism was not significantly abnormal.
The liver margins were smooth, and the hepatic fissure was not widened.
CT scan revealed two slightly low-density nodules and masses in the left lobe of the liver, with indistinct borders; the largest measuring approximately 3.2*2.8 cm, with unevenly increased FDG metabolism (SUVmax = 13.5).
Two low-density nodules with smooth margins were seen in the right lobe of the liver, the largest approximately 1.0 cm in long diameter, with absent FDG metabolism.
Calcification was also observed in the right lobe of the liver.
The main portal vein showed no significant widening, and no dilation was observed in the intrahepatic or extrahepatic bile ducts.
The gallbladder appeared normal in shape and size, with slight thickening of the gallbladder wall and a high-density shadow within the gallbladder lumen; local FDG metabolism was normal.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma; the main pancreatic duct was not widened, and FDG metabolism was normal.
The spleen showed no abnormalities in shape, size, density, or FDG metabolism.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
The renal pelvis, calyces, and upper ureter were slightly dilated, with no obvious abnormalities in FDG metabolism.
The left adrenal gland was thickened and presented as a mass, with a cross-sectional size of approximately 3.7*1.8cm; FDG metabolism was increased, with SUVmax=12.0.
The right adrenal gland showed no obvious abnormalities on contrast.
No esophageal dilation, no obvious thickening or mass in the esophageal wall, and no increased FDG metabolism.
Poor gastric filling, no obvious thickening of the gastric wall, and no obvious abnormalities in FDG metabolism.
Postoperative changes after colon cancer surgery: slight thickening of the intestinal wall at the anastomosis site, increased FDG metabolism, SUVmax=3.7.
Stoma shadow seen on the left lower abdominal wall, increased presacral soft tissue shadow, unevenly increased FDG metabolism, SUVmax=4.6.
Soft tissue nodules seen in both iliac fossae, the larger one located on the right, with a long diameter of approximately 2.0cm, increased FDG metabolism, SUVmax=6.4.
No obvious fluid accumulation in the abdomen or pelvis.
The uterus is not clearly visible.
Poor bladder filling, no obvious positive stones seen.
Spinal alignment is normal, with osteophyte formation at the margins of some vertebral bodies.
L4/5 and L5/S1 intervertebral disc bulges, with no abnormalities in FDG metabolism.
L4/5 intervertebral disc pneumodegenerative changes.
Increased FDG metabolism in the lower right humerus (SUVmax = 8.7).
Localized bone destruction in the spinous process of T2 vertebra, right anterior 4th rib, left ilium, lower right femur, and upper left tibia, with increased FDG metabolism (SUVmax = 17.1).
Increased FDG metabolism foci are seen in the left subscapularis, right rectus abdominis, bilateral erector spinae, right iliopsoas, right gluteus maximus, and right vastus intermedius muscles; some are slightly hypodense nodules with indistinct borders, the largest measuring approximately 1.6*1.5cm (SUVmax = 12.1).
Soft tissue density nodules are seen subcutaneously in the right lower chest wall, midline upper abdomen, bilateral buttocks, and left hip joint; the largest measuring approximately 2.4*2.1cm (SUVmax = 14.5).

Impression

1. Postoperative changes after colon cancer surgery, anastomotic inflammation is highly likely; specialist follow-up is recommended. Left lobe liver metastasis. Left adrenal gland metastasis. Multiple bone, muscle, and subcutaneous metastases throughout the body (see description for details). Bilateral iliac fossa nodule metastases. High probability of presacral soft tissue metastases; left lower abdominal wall stoma.

2. a. A mass near the right hilum at the bronchial opening in the right upper lobe, with increased FDG metabolism, suggestive of malignancy; primary tumor is more likely than metastatic. Please consider clinicopathology. Atelectasis in part of the anterior segment of the right upper lobe. High probability of metastasis to the right hilum, part of the mediastinum, and right supraclavicular fossa lymph nodes. b. Nodule metastases in the lateral and medial basal segments of the right lower lobe; scattered small chronic inflammatory nodules (solid) in the remaining two lungs are possible; CT re-examination is recommended to rule out metastases.

3. Calcifications in the posterior segment of the left lower lobe and the anterior basal segment of the right lower lobe.

4. A few post-inflammatory lesions in both lungs. Partial arteriosclerosis. Bilateral breast hyperplasia, with calcification in the left breast.

5. Cyst and calcification in the right lobe of the liver. Chronic cholecystitis, gallstones. Slight dilation and hydronephrosis of the renal pelvis, calyces, and upper ureter in both kidneys.

6. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulge. L4/5 intervertebral disc pneumoconiosis.

7. Age-related brain changes, deep lacunar infarcts, bilateral periventricular white matter lesions; MRI follow-up is recommended. A few inflammations in the right maxillary sinus.

8. Uneven thyroid density; ultrasound follow-up is recommended.

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