Whole-body 18F-FDG PET/CT scan in a patient with Pancreatic 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 were observed in FDG uptake.
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.
Thickening of the right maxillary sinus mucosa was observed, but FDG uptake was normal; no thickening of the mucosa of the remaining paranasal sinuses was observed, and the sinus walls were intact.
No thickening of the nasopharyngeal wall was observed, and FDG uptake was normal.
The palatine tonsils were slightly enlarged bilaterally, with increased FDG uptake (SUVmax = 9.7).
The laryngopharynx was normal in morphology and structure.
The parotid and submandibular glands were normal in morphology and density, with physiological FDG uptake.
The thyroid gland was normal in morphology and size, with uniform density, and no abnormal FDG uptake was observed.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, or submental region.
Increased lung markings and multiple solid and subsolid nodules in both lungs, the largest being located in the lower lingular segment of the left upper lobe, with a long diameter of approximately 0.9 cm.
Some nodules showed slight FDG uptake, with an SUVmax of 1.6.
A few linear shadows were also seen in both lungs, with no abnormal FDG uptake.
No pleural thickening or pleural effusion/pneumothorax was observed bilaterally.
No significantly enlarged lymph nodes were seen in the hilum or mediastinum bilaterally.
The cardiac silhouette was normal.
Calcification was observed in some arterial walls.
The esophagus was not dilated, and no significant thickening or mass was observed in the esophageal wall; FDG uptake was not increased.
Bilateral gynecomastia was present.
Scarring was observed in the anterior abdominal wall, with increased FDG uptake (SUVmax = 3.5).
Following chemotherapy for pancreatic cancer, the pancreatic head and uncinate process were full and irregular in shape, with indistinct boundaries with adjacent vessels; FDG uptake was increased (SUVmax = 5.7); the main pancreatic duct was dilated, and the pancreatic body and tail were atrophied.
A soft tissue nodule measuring approximately 2.7 x 2.0 cm was observed adjacent to the head of the pancreas, showing increased FDG uptake (SUVmax = 6.8).
Several lymph nodes were visualized in the portacaval space, intraperitoneal cavity, and retroperitoneum, the largest being approximately 0.8 cm in short diameter.
Some of these lymph nodes showed increased FDG uptake (SUVmax = 3.9).
No significant fluid accumulation was observed in the abdominal or pelvic cavities.
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
CT scan revealed several slightly low-density nodules within the liver parenchyma, the largest located in the lower segment of the right lobe, approximately 1.5 cm in long diameter, with indistinct borders and increased FDG uptake (SUVmax = 6.8).
A small cystic low-density lesion, approximately 0.6 cm in long diameter, with clear borders and absent FDG uptake, was also observed under the capsule of the right posterior lobe of the liver.
No significant widening of the main portal vein was observed, and no dilation of intrahepatic or extrahepatic bile ducts was seen.
The gallbladder appeared normal in shape and size, but the gallbladder wall was rough.
A small nodular high-density shadow was seen in the gallbladder neck, with a long diameter of approximately 0.6 cm.
Local FDG uptake was normal.
The spleen appeared normal in shape, size, density, and FDG uptake.
Both kidneys appeared normal in shape and size.
An uneven, slightly low-density nodule was seen at the anterior margin of the middle part of the right kidney, with a long diameter of approximately 2.2 cm and clear borders.
FDG uptake was slightly increased, with SUVmax=2.6.
Cystic low-density shadows were also seen in the renal parenchyma of both kidneys, the larger one with a long diameter of approximately 1.8 cm and clear borders.
FDG uptake was absent.
No widening of the renal pelvis, calyces, or ureters was observed bilaterally.
The adrenal glands showed no obvious abnormalities on contrast imaging, and FDG uptake was normal.
The stomach was generally full, with no obvious thickening of the stomach wall.
FDG uptake was increased in some parts of the stomach wall, with SUVmax=3.4.
The intestines were poorly full, with no obvious thickening or mass in the intestinal wall.
FDG uptake was continuously increased in some parts of the intestine, with SUVmax=5.2.
The prostate was not enlarged, had uniform density, and showed no abnormally high FDG uptake.
The bladder was poorly filled, but no obvious positive stones were observed.
The spinal alignment was normal, with some vertebral body margin osteophytes and calcification of the posterior longitudinal ligament at the L5/S1 vertebral level; FDG uptake was normal.

Impression

1. a. After chemotherapy for pancreatic cancer, the pancreatic head and uncinate process show a full and irregular shape with increased FDG metabolism, suggesting that the tumor activity remains after chemotherapy, affecting adjacent blood vessels. The pancreatic body and tail are atrophied, and the main pancreatic duct is dilated. b. Soft tissue nodules near the pancreatic head with increased FDG metabolism are considered to be lymph node metastasis. Reactive hyperplasia of lymph nodes in the portacaval space, intraperitoneal cavity, and retroperitoneum is possible, and partial metastasis cannot be ruled out. Follow-up is recommended. c. Postoperative changes in the anterior abdominal wall.

2. Multiple liver metastases. Right kidney mass, possibly a metastasis, but renal cell carcinoma cannot be ruled out. It is recommended to compare with old films and combine with enhanced MRI for comprehensive analysis.

3. a. Multiple nodules in both lungs, some with slightly increased FDG uptake, suggesting some metastases. It is recommended to compare with old films and repeat the examination. b. A few post-inflammatory lesions in both lungs. Some arterial wall calcifications. Bilateral gynecomastia.

4. Small subcapsular cyst in the right posterior lobe of the liver. Gallstones, chronic cholecystitis.

5. Increased FDG metabolism in parts of the stomach wall and intestines, considered to be physiological uptake or chronic inflammatory changes.

6. Spinal degenerative changes.

7. No obvious abnormalities were seen on cranial scintigraphy. Chronic inflammation of the right maxillary sinus and both palatine tonsils.

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