Whole-body 18F-FDG PET/CT scan in a patient with Liver 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; no abnormal density shadows were seen in the brain parenchyma; no significant abnormalities in FDG uptake were observed.
No widening of the ventricles, sulci, fissures, or cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and showed no significant abnormalities.
No thickening of the paranasal sinus mucosa was observed; the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed; no abnormalities in FDG uptake were observed; the pharyngeal recesses were symmetrical; there was no narrowing of the Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the parapharyngeal spaces were clear bilaterally, and no abnormalities in FDG uptake were observed.
The palatine tonsils showed physiological uptake bilaterally.
The laryngopharynx was normal in morphology and structure.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The right lobe of the thyroid gland showed slightly decreased density and increased FDG metabolism (SUVmax = 2.9).
The left lobe of the thyroid gland was normal in morphology and size, with uniform density; no abnormalities in FDG uptake were observed.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG metabolism was normal.
Two small ground-glass nodules with relatively clear borders were observed in the apical segment of the right upper lobe; the larger one had a long diameter of approximately 0.4 cm.
Scattered linear shadows were also observed in both lungs; FDG uptake was normal.
The pleura was slightly thickened bilaterally, and a small amount of fluid density shadow was observed in the right pleural cavity.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
The esophagus was not dilated, and the esophageal wall was not significantly thickened or swollen; FDG uptake was normal.
The liver margins were not smooth, and the hepatic fissure was slightly widened.
Multiple masses or nodules were observed in the liver; the lesion in the right lobe was the largest, with heterogeneous internal density, resembling a dilated bile duct, measuring approximately 14.2 9.3 cm; FDG metabolism was increased, SUVmax = 9.5.
A cystic lesion with a long diameter of approximately 1.0 cm was observed in the left lobe of the liver; FDG uptake was normal.
The main portal vein was not significantly widened, and the intrahepatic and extrahepatic bile ducts were not dilated.
The gallbladder was not clearly visualized.
The head of the pancreas showed slightly decreased density and increased FDG uptake, measuring approximately 1.1 1.0 cm (SUVmax = 2.9).
No abnormal density shadows were seen in the remaining glands.
The main pancreatic duct was not widened, and FDG uptake was not significantly abnormal.
The spleen showed no abnormalities in morphology, size, density, or FDG uptake.
The right kidney was absent, and the left kidney was compensatorily enlarged.
A suspicious isodense mass was observed in the left renal parenchyma, approximately 5.1 cm in long diameter, with background FDG uptake.
Both left renal pelvises showed slight thickening of the perirenal fascia following left hydronephrosis surgery.
Bilateral adrenal glands showed no significant abnormalities on contrast imaging.
The stomach was poorly distended, with no significant thickening of the gastric wall and no significant abnormal FDG uptake.
A small air-filled cyst was visible in the horizontal part of the duodenum, with physiological FDG uptake.
The prostate was of normal size and uniform density, with no abnormally increased FDG uptake.
The bladder was generally full, with no obvious positive stones observed.
Multiple lymph nodes were seen in the pancreatic head region, the largest with a short diameter of approximately 1.1 cm, showing increased FDG metabolism (SUVmax = 3.7).
Multiple small lymph nodes were seen retroperitoneally and para-aortic, the largest with a short diameter of approximately 0.4 cm, showing no abnormalities in FDG metabolism.
A few high-density shadows were observed in the pelvic floor.
The spinal alignment was normal, with some vertebral body margin osteophytes, calcification of the nuchal ligament, and L4/5 and L5/S1 intervertebral disc bulges, with no abnormalities in FDG uptake.
No abnormal FDG metabolism was observed in the entire skeletal system.

Impression

1. a. Multiple masses and patchy shadows in the liver, with increased FDG metabolism, suggestive of malignancy, possibly hepatocellular carcinoma with intrahepatic metastasis, but metastatic tumors cannot be ruled out. Please combine tumor markers for comprehensive analysis. Lymph node metastasis in the pancreatic head region. Small amount of pelvic hemorrhage. b. Localized decreased density in the pancreatic head region, focal FDG uptake, MRI is recommended to rule out neoplastic lesions. Reactive hyperplasia of multiple retroperitoneal lymph nodes. c. Liver cirrhosis, small cyst in the left lobe of the liver.

2. Absence of the right kidney, compensatory enlargement of the left kidney, suspicious space-occupying lesion, enhanced MRI is recommended; bilateral renal pelvis on the left, postoperative left hydronephrosis, slight thickening of the left perirenal fascia, please correlate with clinical findings. Diverticulum in the horizontal part of the duodenum.

3. a. Two small ground-glass nodules in the upper lobe of the right lung, FDG metabolism normal, suggestive of atypical adenomatous hyperplasia or inflammatory nodules, annual HRCT is recommended. b. Linear lesions in both lungs. Slight thickening of the pleura on both sides, small amount of pleural effusion on the right side.

4. Slightly decreased density in the right lobe of the thyroid gland, with increased FDG metabolism, suggesting possible thyroiditis; ultrasound and thyroid function tests are recommended.

5. Spinal degenerative changes, with L4/5 and L5/S1 intervertebral disc bulges.

6. No obvious abnormalities were found on cranial imaging.

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