Whole-body 18F-FDG PET/CT scan in a patient with Nasopharyngeal 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

Under fasting conditions, 18F-FDG was administered intravenously, and the patient rested before undergoing whole-body PET/CT imaging.
The whole-body imaging showed:Normal brain morphology and structure, no abnormal density shadows in the brain parenchyma, and no significant abnormalities in FDG uptake.
No widening of the ventricles, sulci, fissures, or cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
No abnormalities in the morphology and outline of the bilateral eyeballs; the retrobulbar structures were clear; the bilateral optic nerves were symmetrical, and no abnormal FDG uptake was observed.
Significant thickening of the posterior and right lateral walls of the nasopharynx, accompanied by a low-density mass with indistinct borders, measuring approximately 3.9*2.9*3.1cm, showed increased FDG metabolism (SUVmax = 15.1), obliteration of the right pharyngeal recess, and involvement of the right nasal cavity, the posterior portion of the right ethmoid sinus, and both sphenoid sinuses, along with bone destruction of the skull base and posterior nasal septum.
Lymph nodes in the right retropharyngeal space and right deep cervical space were observed, the largest measuring approximately 1.6*1.3cm in cross-section, with increased FDG metabolism and an SUVmax of 13.3.
Small lymph nodes in the bilateral deep cervical spaces, submandibular region, and submental region were also observed, the largest with a short diameter of approximately 0.6cm, with no abnormal FDG metabolism.
Bilateral mastoid incomplete pneumatization was observed, with a few soft tissue shadows and fluid density shadows within the mastoid airways, some accompanied by fluid levels; FDG metabolism was normal.
The right maxillary sinus mucosa showed slight thickening, with localized cystic low-density shadows; the sinus wall was intact, and FDG uptake was absent.
The palatine tonsils were symmetrical bilaterally, with physiological FDG uptake.
The laryngopharynx showed no abnormalities in morphology or structure.
The bilateral parotid and submandibular glands had normal morphology and density, with physiological FDG uptake.
The thyroid gland had normal morphology and size, uniform density, and no abnormal FDG uptake.
A small solid nodule, approximately 0.4 cm in long diameter, is found in the subpleural region of the posterior segment of the right upper lobe.
FDG uptake is normal.
A few linear and flocculent density shadows are also seen in both lungs, with no abnormal FDG uptake.
Slight localized thickening of the pleura is observed bilaterally, but there is no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes are seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette is normal.
The esophagus is not dilated, and the wall is not significantly thickened or swollen; FDG uptake is not increased.
The liver is normal in shape and size, with smooth borders and no widening of the hepatic fissure.
CT scan shows multiple low-density nodules in the liver parenchyma with smooth margins; the largest is approximately 1.5 cm in long diameter, with absent FDG uptake.
FDG metabolism in the remaining liver parenchyma is slightly uneven.
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, the gallbladder wall is not thickened, a slightly high-density shadow is seen in the gallbladder lumen, and local FDG uptake is normal.
The pancreas is normal in shape, no obvious abnormal density shadow is seen 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 normal in shape and size, no obvious abnormal density shadow is seen in the parenchyma, the renal pelvis, calyces, and ureters are widened, and FDG uptake is normal.
Bilateral adrenal glands show no obvious abnormalities on contrast.
The stomach is generally full, the stomach wall is not significantly thickened, and FDG uptake is normal.
The intestines are poorly full, the intestinal wall is not significantly thickened or has masses, and FDG uptake is physiological.
The prostate gland appears normal in shape and size, with a transverse diameter of approximately 3.5 cm.
A high-density shadow is seen within the parenchyma, and FDG uptake is normal.
Bladder distension is inadequate, and high-density contrast agent residue is observed in the urinary system.
No enlarged lymph nodes are seen in the abdomen, pelvis, or retroperitoneum.
No significant fluid accumulation is observed in the abdomen or pelvis.
The spinal alignment is normal, with calcification of the nuchal ligament and osteophyte formation at the margins of some vertebral bodies.
L4/5 and L5/S1 intervertebral disc bulges, but FDG uptake is normal.
The L2 vertebral body shows slight posterior displacement.

Impression

1. a. Nasopharyngeal mass with elevated FDG metabolism, consistent with nasopharyngeal carcinoma with skull base bone destruction and extensive surrounding invasion (as described above), metastasis to right retropharyngeal and right deep cervical lymph nodes. Reactive hyperplasia of small lymph nodes in the bilateral deep cervical spaces, submandibular, and submental regions. b. Right maxillary sinus submucosal cyst. Bilateral mastoid incomplete pneumatization and bilateral chronic mastoiditis.

2. Chronic inflammatory nodule in the posterior segment of the right upper lobe of the lung. Scattered chronic inflammation and remnants in both lungs. Mild pleural thickening bilaterally.

3. a. Uneven FDG metabolism in the liver; MRI follow-up is recommended to rule out other possibilities. Multiple liver cysts. b. Possible gallstones. Prostatic calcification.

4. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulge. L2 vertebral body instability.

5. No obvious abnormalities were found on cranial scintigraphy.

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