Whole-body 18F-FDG PET/CT scan in a patient with Cholangiocarcinoma 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: Brain morphology and structure were normal, with a few punctate low-density shadows in the deep bilateral cerebral regions; FDG uptake was not significantly abnormal.
Some ventricles, sulci, fissures, and cisterns were slightly widened; the bilateral ventricles were symmetrical, and there was no midline shift.
Pneumatization of the left mastoid process was poor.
The bilateral eyeballs had normal morphology and outline; the retrobulbar structures were clear; the bilateral optic nerves were symmetrical; FDG uptake was normal.
No thickening of the paranasal sinus mucosa was observed; the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed; FDG uptake was normal.
The bilateral palatine tonsils were symmetrical; FDG uptake was physiological.
The laryngopharynx had normal morphology and structure.
The bilateral parotid and submandibular glands had normal morphology and density; FDG uptake was physiological.
The thyroid gland is normal in shape and size, with uniform density, and FDG uptake is normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region.
Increased lung markings and slightly thickened interlobular septa were observed.
Several solid nodules were seen in the apical and anterior segments of the right upper lobe and the posterior segment of the left lower lobe.
The largest nodule was located in the posterior segment of the left lower lobe, with a long diameter of approximately 1.3 cm, clear borders, and increased FDG uptake (SUVmax = 3.6).
A few linear shadows were observed in the remaining lungs, with no abnormal FDG uptake.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal, and the cardiac chamber density was lower than that of the myocardium.
Some arterial walls showed calcification.
No esophageal dilation was observed, and no significant thickening or mass was observed in the esophageal wall; FDG uptake was normal.
No obvious masses or nodules were seen in either breast, and FDG uptake was not significantly abnormal.
A slightly low-density mass was seen at the junction of the left and right lobes of the liver, with a larger cross-sectional area of approximately 9.9*8.0cm, an average CT value of 27HU, and indistinct borders.
No FDG uptake was observed in the central portion, but increased FDG uptake was seen in a ring at the periphery (SUVmax=10.6).
The mass encircled the gallbladder, and its boundary with the hepatic flexure of the colon was indistinct.
No significant widening of the main portal vein was observed.
The intrahepatic bile ducts and common bile duct were slightly dilated, and FDG uptake was not abnormally increased.
Several lymph nodes were visible in the porta hepatis and root of the mesentery, the largest with a short diameter of approximately 1.4cm, showing increased FDG uptake (SUVmax=7.8).
No significant fluid accumulation was observed in the abdomen or pelvis.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct was visible, and FDG uptake was not abnormal.
Spleen morphology, size, density, and FDG uptake were normal.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the parenchyma.
The renal pelvis, calyces, and ureters were not widened, and FDG uptake was not significantly abnormal.
Bilateral adrenal gland imaging showed no obvious abnormalities.
Stomach distension was poor, with no obvious thickening of the stomach wall.
FDG uptake was slightly increased in some parts of the stomach wall (SUVmax = 2.0).
The remaining intestines were poorly distended, with no obvious thickening or masses in the intestinal wall.
FDG uptake was physiological.
The uterus was small, with punctate calcifications visible at the edges.
FDG uptake was normal.
No obvious abnormalities were seen in the bilateral adnexa.
The bladder was adequately distended, with no obvious positive stones.
The spinal alignment was normal, with unevenly decreased bone density in the vertebral bodies, osteophyte formation at the edges of some vertebral bodies, and calcification of the nuchal ligament.
L3/4 and L4/5 intervertebral disc bulges, with no abnormalities observed in FDG uptake.

Impression

1. a. A mass in the junction of the left and right lobes of the liver, with unevenly increased FDG metabolism, suggestive of a malignant tumor, most likely cholangiocarcinoma invading the gallbladder and hepatic flexure of the colon; please refer to pathology reports. Slight dilation of intrahepatic bile ducts and common bile duct. b. Metastasis to the hilar lymph nodes and root of the mesentery. c. Bilateral lung metastases.

2. Mild interstitial changes in both lungs with a few post-inflammatory remnants. Signs of anemia. Calcification of some arterial walls.

3. Main pancreatic duct visible. Senile uterus.

4. Mildly increased FDG metabolism in some gastric walls, suggestive of physiological uptake or chronic inflammatory changes.

5. Osteoporosis. Spinal degenerative changes. L3/4 and L4/5 intervertebral disc bulge.

6. A few lacunar ischemic foci in the deep bilateral brain regions, with mild age-related brain changes. Sclerotic mastoid process on the left side.

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