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: The brain morphology and structure were normal, with a few punctate or patchy low-density lesions in the deep brain regions; FDG uptake was normal.
Some sulci, fissures, and cisterns were widened, but local density and FDG uptake were normal; there was no midline shift.
Low-density fatty lesions were seen in the right occipital subcutaneous tissue and the left posterior cervical intermuscular space, with clear borders, measuring approximately 3.11.14.7cm and 1.40.93.3cm respectively; FDG uptake was normal.
The morphology and contours of both eyeballs were normal; the retrobulbar structures were clear; FDG uptake was normal.
Thickening of the left maxillary sinus mucosa was observed; thickening of the mucosa of the other paranasal sinuses was not observed, and the sinus walls were intact.
No significant thickening of the soft tissue on either side of the nasopharyngeal wall was observed; the pharyngeal recesses were symmetrical; and FDG uptake was normal.
FDG uptake was increased in the right superior alveolar process (SUVmax = 2.3).
Slight thickening of the soft tissue on the right side of the oropharyngeal wall was observed; FDG uptake was increased (SUVmax = 3.4).
The morphology and structure of the laryngopharynx were normal; the parapharyngeal space was clear.
The size, shape, and density of the bilateral parotid and submandibular glands were normal; FDG uptake was physiological.
The thyroid gland was normal in shape and size, but its density was slightly uneven; FDG uptake was normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, or submental region; FDG uptake was normal.
Multiple soft tissue nodules and masses with clear borders are seen in the left upper lobe and both lower lobes.
The largest is located parapleurally in the left lower lobe, with a long diameter of approximately 3.7 cm.
Increased FDG uptake is observed, with some showing ring-like uptake.
SUVmax = 5.9.
An irregular ground-glass opacity with clear borders, measuring approximately 1.1 0.6 cm, is seen in the apical segment of the right upper lobe.
Mild FDG uptake is observed.
SUVmax = 0.9.
An irregular strip-shaped soft tissue density lesion with clear borders is seen in the apical segment of the right upper lobe.
The largest axial section is approximately 2.1 1.1 cm.
Mild FDG uptake is observed.
SUVmax = 0.9.
Several patchy ground-glass opacities with a long diameter of approximately 0.3?.5 cm are seen in the upper lobes of both lungs.
The borders are indistinct, and FDG uptake is normal.
Increased translucency of both lungs is accompanied by cystic lucent shadows.
A few patchy and linear shadows are also seen in both lungs.
FDG uptake is normal.
Left pleural effusion is present.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions, and FDG uptake was not significantly increased.
The heart size was normal.
Calcification was observed in the walls of the aorta and its branches (including the coronary arteries).
The liver was disproportionately large, with irregular borders and slightly widened fissures.
Multiple low-density nodules and masses were observed in the liver parenchyma, with blurred margins and some fused together.
The largest nodule was located in the left lateral lobe of the liver, measuring approximately 6.6 4.8 cm, with increased FDG uptake, some showing ring-like uptake (SUVmax = 7.2).
The right branch of the portal vein was thickened and increased in density, with increased FDG uptake (SUVmax = 5.1).
Soft tissue nodules and masses were observed retroperitoneally beside the abdominal aorta, locally fused into a mass and burying the abdominal aorta.
The largest nodule measured approximately 6.9 5.1 6.6 cm, with lower density in the central area and increased FDG uptake (SUVmax = 7.5).
A large amount of fluid was observed in the abdominopelvic cavity.
Mild localized FDG uptake in the peritoneum at the right paracolic gutter, SUVmax=1.8.
No dilation of intrahepatic or extrahepatic bile ducts.
Gallbladder shape and size normal; gallbladder wall extensively thickened and roughened, no positive stones or obvious masses seen; FDG uptake in the gallbladder fossa normal.
The peripancreatic space is clear; no obvious abnormal density shadows are seen in the parenchyma; pancreatic duct not widened; FDG uptake normal.
Spleen enlarged; density and FDG uptake normal.
Left adrenal gland thickened; FDG uptake increased, SUVmax=3.1.
Right adrenal gland shape, size, and density normal; localized FDG uptake normal.
Both kidneys normal in shape and size; no obvious abnormal density shadows are seen in the renal parenchyma; FDG uptake normal.
No widening of the renal pelvis, calyces, and ureters bilaterally; no positive stones seen locally.
Prostate enlargement with a few punctate calcifications; no focal abnormal increase in FDG uptake.
Bladder filling is adequate; no obvious localized thickening or mass is seen in the wall, and no positive stones are found in the lumen.
Esophageal dilatation is not observed; no obvious thickening or mass is seen in the esophageal wall; no increased FDG uptake is seen.
Stomach filling is poor; stomach wall is thickened; increased FDG uptake, SUVmax=2.4.
Intestinal filling is unsatisfactory; no local mass is seen; no abnormal FDG uptake is seen.
Spinal alignment is normal; some vertebral body margins show osteophyte formation; no abnormal FDG uptake is seen.
Nuchal ligament calcification is present.

Impression

1. a. Multiple lesions within the liver parenchyma with increased FDG metabolism, highly suggestive of primary liver cancer with right portal vein tumor thrombus formation. Cirrhosis, splenomegaly, and ascites/pelvic effusion. b. Retroperitoneal lymph node metastasis, locally fused and embezzling the abdominal aorta. Peritoneal seeding metastasis and left adrenal metastasis cannot be ruled out; follow-up CT scan is recommended. c. Multiple metastatic tumors in the left upper lobe and both lower lobes. Left pleural metastasis with left pleural effusion is highly probable.

2. a. Irregular ground-glass opacity in the apical segment of the right upper lobe, with slight FDG uptake, early-stage lung cancer to be ruled out; chronic inflammatory ground-glass opacities or atypical adenomatous hyperplasia in the remaining upper lobes of both lungs. b. Soft tissue lesion in the apical segment of the right upper lobe, with slight FDG uptake, highly suggestive of chronic inflammation; a few chronic inflammation lesions and remnants in both lungs. Bilateral emphysema with bullae. Partial arteriosclerosis (including coronary arteries).

3. No obvious abnormal density shadows or increased FDG metabolism shadows seen in the pancreas; please combine with enhanced MRI. Gallbladder wall edema. Benign prostatic hyperplasia with calcification.

4. Poor gastric distension; physiological or inflammatory uptake of the gastric wall.

5. Degenerative changes in the spine. Right occipital subcutaneous lipoma and left posterior cervical intermuscular lipoma.

6. Deep lacunar infarcts in the brain, age-related encephalopathy. Chronic inflammation of the left maxillary sinus. Possible right upper periodontitis; chronic inflammatory changes on the right side of the oropharyngeal wall; please combine with specialist examination.

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