Whole-body 18F-FDG PET/CT scan in a patient with Gastric 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; no abnormal density shadows were seen in the brain parenchyma, and FDG uptake was normal.
No widening was observed in the ventricles, sulci, fissures, or cisterns; local density and FDG uptake were normal; and there was no midline shift.
The bilateral eyeballs had normal morphology and outlines; retrobulbar structures were clear; the bilateral optic nerves were symmetrical; and FDG uptake was normal.
No thickening was observed in the paranasal sinus mucosa; the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall; there was no narrowing of the bilateral pharyngeal recesses or Eustachian tube openings; the infratemporal fossa and pterygopalatine fossa structures were normal; the bilateral parapharyngeal spaces were clear; and FDG uptake was normal.
The bilateral palatine tonsils were full and showed physiological FDG uptake.
The laryngopharynx had normal morphology and structure.
No abnormal visualization was observed in the bilateral parotid and submandibular glands.
The thyroid gland is normal in shape and size, with uneven density.
Calcification is seen in the right lobe.
A low-density nodule with an approximately 0.8cm long diameter is seen in the isthmus, with indistinct borders and increased FDG uptake (SUVmax = 11.8).
No significantly enlarged lymph nodes are seen in the bilateral deep cervical spaces, submandibular region, or submental region.
The chest is symmetrical, with the mediastinum and trachea in the midline.
A ground-glass nodule with an approximately 0.4cm long diameter is seen in the anterior basal segment of the right lower lobe, with relatively clear borders and normal FDG uptake.
A few linear opacities are seen in both lungs.
No pleural thickening is seen bilaterally, and there is no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes are seen bilaterally in the hilum or mediastinum.
The cardiac silhouette is normal, and myocardial FDG uptake is normal.
The bilateral breasts are normal in shape, with no abnormal density shadows in the fibrous glands and normal FDG uptake.
Post-gastric cancer treatment: Poor gastric filling, slight thickening of the gastrointestinal anastomosis and adjacent gastric walls, increased FDG uptake (SUVmax = 6.5).
Slightly thickened lower esophageal wall, increased FDG uptake (SUVmax = 3.3).
Post-colon surgery: Poor bowel preparation, no thickening of the anastomosis wall, increased FDG uptake in some bowel segments (SUVmax = 5.2).
Post-bilateral adnexal surgery: No abnormal density shadows in the surgical area, slightly full uterus with irregular outline, no abnormal FDG uptake.
Left kidney is relatively full, with decreased renal parenchymal density, and increased FDG uptake compared to the right kidney.
Hydronephrosis and dilation of the left renal pelvis and upper left ureter, with apparent increased soft tissue shadows in the upper left ureter with indistinct borders, local wall thickening, and increased FDG uptake (SUVmax = 2.8).
Thickening of the left perirenal fascia, part of the mesentery, and pelvic peritoneum, with increased FDG uptake (SUVmax = 4.8).
No significant effusion was observed in the abdominopelvic cavity.
The mesenteric vessels showed slight tortuosity, and multiple mesenteric lymph nodes were observed, the largest with a short diameter of approximately 0.4 cm, some showing increased FDG uptake (SUVmax = 3.5).
The liver showed no significant abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
Small cystic lesions were observed in the liver parenchyma, with no abnormal FDG uptake.
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, no positive stones or obvious masses, and no abnormal FDG uptake.
The pancreas showed no abnormalities in shape, with no significant abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no abnormal FDG uptake.
Spleen morphology and size normal, density and FDG uptake normal.
Right kidney morphology and size normal, no obvious abnormal density shadows seen in renal parenchyma, FDG uptake normal.
No widening of the right renal pelvis, calyces, and ureter, no positive stones seen within.
Bilateral adrenal glands morphology and density normal, FDG uptake normal.
Bladder poorly filled, no positive stones or obvious masses seen within.
Bilateral pars interarticularis fracture at L5.
Bone interruption seen in the left transverse process of L3.
Osteophyte formation at some vertebral body margins, L5/S1 intervertebral disc herniation.
FDG uptake of all bones seen is normal.

Impression

1. a. Post-gastric cancer treatment: Slight thickening of the anastomosis and adjacent gastric wall with increased FDG metabolism, and slight thickening of the lower esophageal wall with increased FDG metabolism, both suggestive of inflammatory changes. Endoscopic follow-up is recommended to rule out other possibilities. b. Partial peritoneal thickening in the abdominopelvic cavity with increased FDG metabolism suggests inflammatory changes, with implantation metastasis to be ruled out. Regular CT follow-up is recommended. c. Mild mesenteric torsion, likely due to reactive hyperplasia of mesenteric lymph nodes; follow-up is advised.

2. Post-colon surgery: No thickening of the anastomosis wall, but increased FDG metabolism in some intestinal segments, suggesting physiological uptake or chronic inflammation; endoscopic follow-up is recommended.

3. Post-bilateral adnexal surgery: No abnormal FDG metabolic foci were observed in the surgical area. Uterine fibroids are possible. Clinical and ultrasound follow-up is recommended.

4. Hydronephrosis and dilation of the left renal pelvis and upper left ureter, suspicious soft tissue shadow with thickened wall in the upper left ureter, and increased FDG metabolism suggest possible inflammatory changes, space-occupying lesion to be ruled out. Please combine with enhanced MRI, and repeat endoscopic examination if necessary. Left kidney fullness with increased parenchymal FDG metabolism, please combine with renal function tests.

5. Ground-glass nodule in the anterior basal segment of the right lower lobe, FDG metabolism normal, suggest chronic inflammatory nodule or atypical adenomatous hyperplasia. Please combine with annual HRCT follow-up. Fibrotic foci in both lungs.

6. Uneven density of the thyroid gland, calcification in the right lobe, low-density nodule in the isthmus with increased FDG metabolism, suggest possible adenomatous nodule. Ultrasound follow-up is recommended, and fine-needle aspiration biopsy if necessary to rule out malignancy.

7. Liver cyst.

8. Osteophyte formation in some cervical, thoracic and lumbar vertebrae. Bilateral pars interarticular rupture at L5. Significantly old changes in the left transverse process of L3. L5/S1 disc herniation.

9. No obvious abnormalities were found on cranial scintigraphy.

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