Whole-body 18F-FDG PET/CT scan in a patient with Lung 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 images showed: Normal brain morphology and structure, with a few punctate low-density shadows in the deep bilateral cerebral regions; FDG uptake was normal.
Slight widening of the ventricles, sulci, fissures, and cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
Decreased density was observed bilaterally in the lenses; the eyeballs were symmetrical and showed no obvious abnormalities.
Slight thickening of the bilateral ethmoid sinus mucosa was observed; no thickening was observed in the paranasal sinus mucosa, and the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall; the palatine tonsils were symmetrical bilaterally, and FDG uptake was physiological.
The laryngopharynx showed no abnormalities in morphology and structure.
The bilateral parotid and submandibular glands showed normal morphology and density, and FDG uptake was physiological.
The thyroid gland showed normal morphology and size, but uneven density; multiple small nodules were observed in both lobes, the largest being located in the right lobe, with a long diameter of approximately 0.6 cm; FDG uptake was normal.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region.
Increased lung markings were present bilaterally.
An irregular soft tissue nodule, approximately 1.8 2.6 cm in size, with an average CT value of 27 HU, was observed in the right hilar region.
The borders were relatively clear, with some subsegmental bronchi compressed and narrowed, and some partially obstructed.
A few linear shadows were visible distally.
FDG uptake was increased, with an SUVmax of 6.7.
The boundary between the nodule and adjacent hilar and mediastinal lymph nodes was indistinct.
Multiple solid and subsolid nodules were observed in both lungs, the largest being approximately 0.6 cm in long diameter.
FDG uptake was normal.
Scattered linear areas of increased density were observed in both lungs, with normal FDG uptake.
Slight localized thickening of the pleura was observed bilaterally.
A small amount of pleural effusion was observed in the right pleural cavity.
Multiple enlarged lymph nodes were observed in the right hilum (10R), mediastinum (2R, 4R, 5 groups), right supraclavicular region (1R), right internal mammary chain, and right visceral subpleural region.
The largest node, approximately 3.4 4.7 cm in size, was located behind the vena cava before the trachea, showing increased FDG uptake (SUVmax = 6.0).
The cardiac silhouette was normal.
Calcification of some arterial walls was observed (including the coronary arteries).
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
A slightly low-density nodule, approximately 1.1 cm in long diameter, with relatively clear borders, was seen in the upper segment of the right anterior lobe of the liver on plain CT scan, showing increased FDG uptake (SUVmax = 3.9).
The main portal vein showed no significant widening, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder showed no abnormalities in shape or size, with no thickening of the gallbladder wall and no abnormal local FDG uptake.
The pancreas was normal in shape, with no significant abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no significant abnormal FDG uptake.
Spleen morphology, size, density, and FDG uptake were normal.
Both kidneys were normal in shape and size; multiple cystic lesions were seen in the left renal parenchyma, the largest being approximately 1.3 cm in long diameter, with absent FDG uptake.
The renal pelvis, calyces, and ureters were not widened, and FDG uptake was not significantly abnormal.
Bilateral adrenal gland imaging showed no significant abnormalities.
Gastric distension was poor; the middle and lower esophagus and part of the gastric wall were slightly thickened, with mildly increased FDG uptake (SUVmax = 9.4).
A large, irregular cystic mass was seen in the right lower abdomen and pelvis, measuring approximately 8.8 10.0 17.0 cm, with a mean CT value of 0 HU, clear margins, and absent FDG uptake; adjacent intestinal segments were compressed and displaced.
Intestinal distension was poor; some intestinal segments showed banded FDG uptake (SUVmax = 7.0).
The prostate was not significantly enlarged, had uniform density, and no abnormally increased FDG uptake was observed.
Post-bladder tumor surgery, the bladder was adequately filled, with contrast agent present, and no obvious filling defects were observed.
Enlarged lymph nodes, approximately 1.4 1.7 cm in size, were seen in the hepatogastric space, with increased FDG uptake (SUVmax = 4.3).
Small nodules, the largest approximately 0.9 1.0 cm in size, were seen in the anterior and right abdominal wall spaces, with increased FDG uptake (SUVmax = 4.3).
Multiple small lymph nodes, the largest approximately 0.8 cm in long diameter, were seen in the space above and behind the right kidney, behind the diaphragmatic crura, and in the retroperitoneum, with slightly increased FDG uptake (SUVmax = 2.5).
No significant fluid accumulation was observed in the abdomen or pelvis.
Osteolytic bone destruction was observed in the lower left humerus, right humeral head, bilateral scapulae, sternum, left clavicle, multiple bilateral ribs, multiple vertebrae and their appendages, various pelvic bones, and the upper bilateral femurs, with increased FDG uptake (SUVmax = 7.8).
The spinal alignment was normal, with some vertebral body margin osteophytes.
There were disc bulges at L2/3, L3/4, L4/5, and L5/S1, but FDG uptake was normal.

Impression

1. "Right lung cancer after radiotherapy and chemotherapy," compared with the previous PET/CT scan (2022-02-08) taken at our center: a. The lesion in the right hilar region has significantly decreased in size compared to the previous scan, and FDG metabolism has decreased, suggesting that some tumor activity has been suppressed after treatment. b. Multiple lymph nodes in the right hilum, mediastinum, right internal mammary chain, and right supraclavicular region have decreased in size compared to the previous scan, and FDG metabolism has decreased, suggesting that some tumor activity has been suppressed; the lymph nodes in the hepatogastric space are roughly the same size as before; among them, one lymph node in the right visceral subpleural region is a newly developed lesion. c. Multiple bone metastases throughout the body, some lesions have slightly shrunk in size compared to the previous scan, and FDG metabolism has slightly decreased. d. Small nodules in the anterior abdominal wall and right abdominal wall space, above and behind the right kidney, in the space behind the diaphragm crus, and in the retroperitoneum, are roughly the same size as before, and FDG metabolism has slightly increased. e. Nodule in the upper segment of the right anterior lobe of the liver is similar in size as before, and FDG metabolism has decreased.

2. a. Several nodules in both lungs; some nodules are smaller and some have disappeared compared to previous scans. FDG metabolism is normal. Close follow-up with CT is recommended. b. Minor chronic inflammation and sequelae in both lungs. Slight local thickening of the pleura bilaterally. Partial arteriosclerosis (including coronary arteries).

3. Post-bladder tumor surgery, no obvious filling defect changes were observed. Please follow up with cystoscopy.

4. Large cystic lesions in the right lower abdomen and pelvis, slightly smaller than before, likely benign. Please follow up with clinical findings.

5. Increased FDG metabolism in the middle and lower esophagus and part of the gastric wall, considered physiological uptake or chronic inflammatory changes. Please follow up with gastroscopy. Multiple cysts in the left kidney.

6. Spinal degeneration. L2-S1 intervertebral disc bulge.

7. Minor lacunar infarcts in the deep bilateral brain, mild age-related brain changes. Please follow up with MRI. Minor chronic inflammation in both ethmoid sinuses. Decreased lens density bilaterally. Please follow up with clinical findings.

8. Multiple nodules in both lobes of the thyroid gland, with no abnormalities in FDG metabolism, are considered likely to be benign nodules, similar to the previous findings. Please follow up with ultrasound.

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