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 with the arms raised, from the top of the skull to the upper thighs.
The brain morphology and structure were normal, with punctate low-density lesions seen in the deep bilateral cerebral regions; FDG uptake was not significantly abnormal.
The ventricles, sulci, fissures, and cisterns were widened, with symmetrical ventricles and no midline shift.
The bilateral eyeballs showed normal morphology and outline, with clear retrobulbar structures and symmetrical optic nerves; FDG uptake was not abnormal.
The right ethmoid and maxillary sinuses showed slight mucosal thickening, with intact sinus walls and absent FDG uptake.
The nasopharyngeal wall was not thickened; there was no stenosis of the bilateral pharyngeal recesses or Eustachian tube openings; the infratemporal and pterygopalatine fossae were structurally normal; the bilateral parapharyngeal spaces were clear; FDG uptake was not abnormal.
The oropharynx and laryngopharynx showed physiological FDG uptake.
The bilateral parotid and submandibular glands showed no abnormal contrast.
The thyroid gland was normal in shape and size, with slightly heterogeneous density; FDG uptake was diffusely slightly increased, with SUVmax = 2.8.
Small lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region, the largest measuring approximately 0.6 cm in short diameter, with no abnormal FDG uptake.
A solid micronodule, approximately 0.3 cm in long diameter, was seen in the anterior segment of the left upper lobe, with regular shape and clear borders, and no abnormal FDG uptake.
A few linear and flocculent density shadows were also seen in both lungs, with no abnormal FDG uptake.
The pleura was thickened bilaterally, but there was no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes were seen in the bilateral hilar and mediastinal regions.
The heart was enlarged.
Calcification of some arterial walls (including the coronary arteries) was observed.
A few dense fibrous glandular shadows were seen in both breasts, with a small calcification in the right breast, and no significant abnormalities in FDG uptake.
The liver was enlarged, with irregular mixed-density nodules and masses in the liver parenchyma, predominantly in the right lobe, with indistinct borders.
The largest nodule measured approximately 13.3 cm 10.2 cm, with unevenly increased FDG uptake (SUVmax = 18.0).
The hepatic hilar lymph nodes showed a maximum short diameter of approximately 0.6 cm, with slightly increased FDG uptake (SUVmax = 2.0).
The gallbladder was shrunken, with slightly thickened and roughened walls, and increased FDG uptake (SUVmax = 3.2).
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma, and no widening of the main pancreatic duct; FDG uptake was not significantly abnormal.
The spleen was normal in shape, size, density, and FDG uptake.
Both kidneys were normal in shape and size, with cystic low-density lesions in the renal parenchyma, the largest being approximately 3.6 cm in long diameter, and FDG uptake was absent.
The renal pelvis, calyces, and ureters were not widened, and FDG uptake was not significantly abnormal.
The left adrenal gland was slightly thickened, with no significant abnormality in FDG uptake; the right adrenal gland showed no significant abnormality on contrast.
The esophagus was not dilated, and the esophageal wall was not significantly thickened or swollen; FDG uptake was not increased.
The stomach is poorly distended, with slight thickening of the stomach wall and mildly increased FDG uptake (SUVmax = 2.0).
The intestines are poorly distended, with localized increased FDG uptake in a portion of the small intestine in the right lower pelvis (SUVmax = 4.6).
The uterus is normal in shape and size, with no abnormal density shadows and normal FDG uptake.
No obvious abnormalities were observed in the bilateral adnexa.
The bladder is poorly distended, with residual high-density contrast agent in the urinary system.
No significant fluid accumulation was observed in the abdomen or pelvis.
Several soft tissue nodules were observed in the pelvic cavity, the largest measuring approximately 2.6cm 2.7cm, with increased FDG uptake (SUVmax = 4.1), some with indistinct borders, and some with unclear boundaries from the intestinal wall.
The abdominal aorta is dilated, particularly above the aortic bifurcation, with a diameter of approximately 3.2cm, and some of the vessel walls show calcification; FDG uptake was not significantly abnormal.
Decreased bone density was observed throughout the body, with some vertebral marginal osteophytes.
The T7 and L3 vertebral bodies are slightly flattened, and the L4/5 and L5/S1 intervertebral discs are bulging, with no abnormalities detected in FDG uptake.
The spinal canal at the level of the S2 vertebral body is enlarged, with a cystic lesion measuring approximately 2.1cm 1.2cm inside, but FDG uptake is absent.

Impression

1. a. Irregular mixed-density nodules and masses in the liver parenchyma, predominantly in the right lobe, with unevenly increased FDG metabolism, suggestive of malignancy. Hepatocellular carcinoma with intrahepatic metastasis is the primary consideration, but metastatic tumors should be ruled out. Please combine tumor markers for comprehensive analysis. b. Pelvic peritoneal seeding metastasis. Hilar lymph node metastasis to be ruled out; follow-up is recommended.

2. a. Chronic inflammatory micronodules in the anterior segment of the left upper lobe; please follow up with CT. A few post-inflammatory lesions in both lungs. Bilateral pleural thickening. b. Cardiac enlargement, partial arteriosclerosis (including coronary arteries); abdominal aortic dilatation. Specialist follow-up is recommended.

3. Mild hyperplasia or incomplete regression in both breasts, calcification in the right breast.

4. Cholecystitis; ultrasound follow-up is recommended. Bilateral renal cysts. Left adrenal hyperplasia. High-density contrast agent residue in the urinary system.

5. Chronic gastritis; please follow up with endoscopy. Increased FDG metabolism in a portion of the small intestine in the right lower pelvic cavity, suggesting physiological metabolism or chronic inflammatory changes; enhanced CT follow-up is recommended.

6. Osteoporosis, degenerative changes in the spine. Old compressive changes in the T7 and L3 vertebral bodies, L4/5 and L5/S1 intervertebral disc bulges. Sacral canal cyst.

7. Age-related brain changes, deep lacunar infarcts in the brain. Inflammation of the right ethmoid and maxillary sinuses. Reactive hyperplasia of bilateral deep cervical interspace, submandibular, and submental lymph nodes.

8. Nodular goiter or thyroiditis; follow-up with ultrasound and thyroid function tests 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