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, and resting, a whole-body PET/CT scan was performed.
The whole-body scan showed: The brain morphology and structure were normal, with punctate low-density shadows in the deep bilateral cerebral regions; FDG uptake was not significantly abnormal.
The 5th and 6th ventricles were visible, with slight widening of the ventricles, sulci, fissures, and cisterns; the ventricles were symmetrical, and there was no midline shift.
The bilateral eyeballs had normal morphology and outlines; the retrobulbar structures were clear; the bilateral optic nerves were symmetrical; FDG uptake was not abnormal.
The left maxillary and ethmoid sinus mucosa was slightly thickened; FDG uptake was not abnormal, and the sinus walls were intact.
The nasopharyngeal wall was not thickened; there was no stenosis of the bilateral pharyngeal recesses and Eustachian tube openings; the bilateral infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear; FDG uptake was not abnormal.
FDG uptake in the oropharynx and laryngopharynx was physiological.
No abnormal contrast was observed in the bilateral parotid and submandibular glands.
The thyroid gland is normal in shape and size, with slightly uneven density; FDG uptake is normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, or submental region.
Increased lung markings were observed bilaterally.
A pure ground-glass nodule, approximately 0.5 cm in length, with relatively clear borders, was seen in the lateral basal segment of the right lower lobe; FDG uptake was normal.
Several other solid nodules were also observed in the right lung, the largest located in the anterior basal segment of the right lower lobe, approximately 0.4 cm in length, with clear borders; FDG uptake was normal.
A few linear opacities and calcifications were observed in the remaining lungs; FDG uptake was normal.
Partial thickening and calcification of the right pleura were observed; there was no pleural effusion or pneumothorax bilaterally.
A small sac-like low-density shadow was observed adjacent to the trachea in the superior mediastinum.
No obvious enlarged lymph nodes were seen in the bilateral hilar regions.
Several lymph nodes were visible in the mediastinum, the largest measuring approximately 0.6 cm in short diameter.
Some lymph nodes showed slightly increased FDG uptake, with an SUVmax of 2.9.
The cardiac silhouette appeared normal.
Some arterial walls showed calcification (including the coronary arteries).
The esophagus showed no dilation, no significant thickening or mass in the esophageal wall, and no increased FDG uptake.
The liver showed no obvious abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
A slightly low-density nodule measuring approximately 2.7*2.3 cm was seen in the lower segment of the right posterior lobe of the liver on plain CT scan, with an average CT value of 34 HU and indistinct borders.
Increased FDG uptake was observed, with an SUVmax of 5.9.
Slightly low-density nodules were seen under the capsule of the left lobe and caudate lobe of the liver, the largest measuring approximately 2.3 cm in long diameter, with clear borders and increased FDG uptake, with an SUVmax of 6.3.
Small cystic low-density shadows were observed in the upper segment of the right anterior lobe and the lower segment of the left lateral lobe of the liver, the largest being approximately 0.5 cm in length, with clear borders and absent FDG uptake.
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, with slightly thickened and roughened walls, but localized FDG uptake was normal.
A dense mass measuring approximately 3.5 x 2.8 cm was observed in the tail of the pancreas, with uneven density, an average CT value of 29 HU, increased FDG uptake (SUVmax = 6.2), and infiltration and adhesion to the splenic hilum.
Both kidneys were normal in shape and size, with several cystic low-density shadows in the renal parenchyma, the largest located in the left kidney, approximately 3.0 cm in length, with clear borders and absent FDG uptake; no widening of the renal pelvis, calyces, or ureters was observed.
The left adrenal gland is slightly enlarged with increased FDG uptake (SUVmax = 3.2); the right adrenal gland showed no obvious abnormalities on imaging.
The stomach is generally full, with slight thickening of the antral wall and increased FDG uptake (SUVmax = 3.2).
The rectosigmoid junction shows slight thickening of the intestinal wall with increased FDG uptake (SUVmax = 7.3), with an uptake range of approximately 1.2*0.9*1.1cm.
Localized thickening, some nodular, is observed in the greater omentum, around the gastric antrum, around the head and neck of the pancreas, the mesentery, and the vesicorectal pouch in the abdomen and pelvis.
Increased FDG uptake (SUVmax = 10.1) is present, with some areas showing indistinct boundaries with adjacent gastric walls and intestinal segments.
Several lymph nodes are visible in the presacral space, beside the left iliac vessels, in the mesenteric region, and retroperitoneum, the largest with a short diameter of approximately 0.7cm.
Increased FDG uptake in the mesenteric lymph nodes is observed (SUVmax = 3.0).
Small amounts of fluid were observed around the liver and spleen, in the bilateral paracolic gutter, and in the pelvic cavity.
The prostate was enlarged, approximately 5.1 cm in diameter, with calcifications within the parenchyma; FDG uptake was not abnormally increased.
The bladder was poorly filled, but no obvious positive stones were observed.
Increased FDG uptake was observed in the T11 vertebral body and the right iliac bone, with an SUVmax of 4.3.
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies and calcification of the nuchal ligament; mild disc herniation was observed at L4/5 and L5/S1, with no abnormal FDG uptake.
A low-density, fatty mass, approximately 2.7*1.8 cm in size, with an average CT value of -105 HU, was observed within the right infraspinatus muscle; the mass had clear borders and absent FDG uptake.

Impression

1. a. Multiple implantation metastases in the abdomen and pelvis, some with unclear boundaries from adjacent stomach walls and intestinal segments. Metastatic tumors in the lower segment of the right posterior lobe of the liver, the left lobe of the liver, and the subcapsular lobe. b. A mass in the tail of the pancreas, with increased FDG metabolism, involving the splenic hilum, suggestive of malignancy; pancreatic cancer is more likely than metastasis. c. Slight thickening of the intestinal wall at the rectosigmoid junction, with increased FDG uptake; combined with colonoscopy pathology, colon cancer cannot be ruled out; periodic colonoscopy follow-up is recommended. Presacral lymph node metastasis is highly probable. d. Reactive hyperplasia of small lymph nodes in the left iliac vessels, mesentery, and retroperitoneum; follow-up is required. Small amount of fluid in the abdomen and pelvis. e. Metastasis to the T11 vertebra and right iliac bone is pending; follow-up is recommended with MRI.

2. a. Ground-glass nodule in the lateral basal segment of the right lower lobe, FDG metabolism normal, suggestive of chronic inflammatory nodule or atypical adenomatous hyperplasia, please combine with annual HRCT follow-up. b. Chronic inflammatory micronodule (solid) in the right lung. A few post-inflammatory remnants and calcifications in both lungs. Partial thickening and calcification of the right pleura. Tracheal diverticulum. Reactive hyperplasia of mediastinal lymph nodes. Calcification of some arterial walls (including coronary arteries).

3. Small liver cyst. Slightly thickened and roughened gallbladder wall. Bilateral renal cysts; likely mild hyperplasia of the left adrenal gland. Prostatic hyperplasia with calcification.

4. Changes characteristic of chronic gastritis.

5. Spinal degenerative changes; mild L4/5 and L5/S1 intervertebral disc protrusion. Right infraspinatus muscle lipoma.

6. Bilateral deep lacunar infarcts, age-related brain changes, and formation of the cavum septum pellucidum. Minor inflammation of the left maxillary and ethmoid sinuses.

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