Whole-body 18F-FDG PET/CT scan in a patient with Renal 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: Brain morphology and structure were normal, with punctate, slightly low-density shadows in the deep brain regions; FDG metabolism was normal.
The ventricles, sulci, fissures, and cisterns were widened, but local density and FDG uptake were normal; midline shift was not observed.
Both eyes were symmetrical, with no obvious abnormalities.
The left ethmoid sinus mucosa was thickened, while the mucosa of the other paranasal sinuses was not thickened, and the sinus walls were intact.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The pharyngeal recesses were symmetrical, the Eustachian tube openings were not narrowed, the infratemporal and pterygopalatine fossae were structurally normal, and the bilateral parapharyngeal spaces were clear; FDG uptake was normal.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The oropharynx and laryngopharynx were normal in morphology and structure.
The thyroid gland was normal in morphology and size, with slightly uneven density; FDG uptake was normal.
Increased lung markings, thickened bronchial walls in some lower lobes of both lungs, irregular patchy shadow in the posterior basal segment of the right lower lobe, adjacent to the mediastinum, with indistinct borders, the largest cross-section measuring approximately 5.3*1.9cm, containing calcifications, increased FDG uptake, SUVmax=15.6, indistinct boundary with adjacent pleura, truncation of adjacent bronchi visible; multiple solid nodules in both lungs, with clear borders, the largest approximately 0.4cm in diameter, no abnormal FDG uptake; increased lung translucency, multiple air-filled cavities, scattered linear foci and reticular hazy shadows in both lungs, no abnormal FDG uptake.
A sac-like shadow containing air is seen at the right posterior margin of the upper trachea.
No abnormalities seen in the cardiac silhouette.
Calcification of some arterial walls (including coronary arteries).
No esophageal dilatation, no significant thickening or mass in the esophageal wall, no increased FDG uptake.
The liver showed no obvious abnormalities in shape and size, with smooth liver margins and no widening of the hepatic fissure.
Locally nodular FDG metabolism was observed in the left lobe of the liver (SUVmax = 5.3).
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 and size, with punctate areas of increased density within the gallbladder.
The gallbladder wall showed no thickening, and local FDG uptake was normal.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma.
The main pancreatic duct was not widened, and FDG uptake was normal.
The spleen was of normal shape with uneven density, and FDG metabolism was normal.
A soft tissue density nodule approximately 1.3 cm in diameter was observed adjacent to the spleen, with no abnormal FDG uptake.
An irregular soft tissue density shadow is seen in the lower pole of the right kidney, with indistinct borders and uneven density, measuring approximately 6.3*6.1*6.2cm.
FDG uptake is increased, SUVmax=21.8.
There is significant exudative shadow and thickening of the perirenal fascia in both kidneys, more pronounced in the right kidney.
No obvious space-occupying lesion is seen in the left renal parenchyma.
FDG metabolism is normal.
No obvious abnormalities are seen in the left adrenal gland, while the right adrenal gland is not clearly visualized.
Multiple enlarged lymph nodes are seen in the left supraclavicular fossa, the largest measuring approximately 1.5*1.1cm, with increased FDG uptake, SUVmax=8.3.
Enlarged lymph nodes are seen below the tracheal carina and in the right cardiophrenic angle, the largest located below the tracheal carina, measuring approximately 2.0*1.5cm, with increased FDG uptake, SUVmax=8.9.
Multiple lymph nodes were observed in the hepatic hilum, right posterior diaphragmatic crura, retroperitoneal perivascular space, mesentery, bilateral iliac vessels, right pelvic wall, presacral region, and right inguinal region.
Some lymph nodes were fused into clusters, the largest being located in the right iliac fossa, measuring approximately 4.6*3.2cm.
FDG uptake was increased, with SUVmax=13.8 (the boundary between some lesions and the middle and lower segments of the right ureter was unclear, resulting in slight dilation of the right renal pelvis and the upper segment of the right ureter).
Extensive thickening of the right peritoneum and pelvic floor fascia was observed, with a small amount of pelvic effusion.
Gastric distension was poor, with slight thickening of the cardia, part of the gastric body, and antrum walls.
FDG uptake was increased, with SUVmax=3.5.
Intestinal distension was unsatisfactory, with localized thickening of the rectal wall.
FDG uptake was increased, with SUVmax=7.8.
The prostate was full, with patchy dense shadows visible within it; FDG uptake was not abnormally increased.
A small amount of fluid was observed in the tunica vaginalis of the right testis.
The bladder was poorly filled, but no obvious positive stones were seen.
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies.
The L4 vertebral body was displaced anteriorly, and there was disc bulging with pneumoconiosis at L4/5 and L5/S1.
A patchy subcutaneous opacity with increased FDG uptake was observed in the left buttock, with an SUVmax of 3.8.
Focal FDG uptake was observed in the L4 vertebral body, with an SUVmax of 5.8 and an uptake diameter of approximately 1.7 cm.
No abnormalities were seen on visualization of the lower extremities.

Impression

1. a. A mass in the lower pole of the right kidney with increased FDG metabolism; multiple enlarged lymph nodes throughout the body with increased FDG metabolism (see description for details; some lesions are poorly demarcated from the middle and lower segments of the right ureter); focal increase in FDG uptake in the L4 vertebral body. All of these suggest malignancy, but lymphoma cannot be ruled out. Please correlate with clinicopathology. b. An irregular patchy shadow in the posterior basal segment of the right lower lobe, adjacent to the mediastinum, with increased FDG metabolism. Tumor infiltration is highly probable; inflammation needs to be ruled out. Please correlate with clinicopathology. c. Extensive thickening of the right peritoneum and pelvic floor fascia, with a small amount of pelvic effusion. d. Localized thickening of the rectal wall; tumor needs to be ruled out. Colonoscopy is recommended. Localized nodular FDG metabolism in the left lobe of the liver; please correlate with contrast-enhanced MRI to rule out tumor.

2. Chronic inflammatory micronodules in both lungs; follow-up CT is recommended. Bilateral emphysema, bilateral interstitial lung inflammation. Tracheal diverticulum. Calcification of some arterial walls (including coronary arteries).

3. Small gallstones. Accessory spleen. Possible splenic angioma. Benign prostatic hyperplasia with calcification. Small amount of hydrocele in the right testis.

4. Chronic inflammatory changes in part of the gastric wall; please confirm with gastroscopy.

5. Degenerative changes in the spine, anterior slippage of the L4 vertebral body, L4/5 and L5/S1 intervertebral disc bulging with pneumodegenerative changes. Subcutaneous inflammation in the left buttock.

6. Age-related brain, deep lacunar infarcts; please confirm with MRI. Chronic inflammation of the left ethmoid sinus.

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