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, 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 bilateral basal ganglia; FDG uptake was not significantly abnormal.
The ventricular system was slightly enlarged, with widening of the sulci, fissures, and cisterns; the ventricles were symmetrical, and there was no midline shift.
Both eyes were symmetrical, with no significant abnormalities.
The left maxillary sinus mucosa was slightly thickened, but the sinus wall was intact.
The nasopharyngeal wall was not thickened, and FDG uptake was normal.
The bilateral 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 with no abnormal FDG uptake.
The bilateral palatine tonsils showed physiological uptake.
The laryngopharynx morphology and structure were normal.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
A low-density nodule with relatively clear borders, approximately 0.8 cm in length, is visible at the lower pole of the left thyroid lobe.
FDG uptake is increased, with an SUVmax of 2.3.
No significantly enlarged lymph nodes are observed in the bilateral deep cervical spaces, submandibular region, or submental region.
FDG metabolism is normal.
Multiple small nodules with relatively clear borders are visible in the apical-posterior segment of the left upper lobe and the medial segment of the right middle lobe.
The largest nodule has a length of approximately 0.3 cm, and FDG uptake is normal.
An air-filled cavity with a length of approximately 2.5 cm is visible in the posterior-basal segment of the right lower lobe.
A few streaks are observed in both lungs, and FDG metabolism is normal.
No pleural thickening or pleural effusion is observed bilaterally.
No significantly enlarged lymph nodes are observed in the bilateral hilar and mediastinal regions.
Partial calcification is present in the walls of the aorta and coronary arteries.
No esophageal dilatation, significant wall thickening, or masses are observed, and FDG uptake is normal.
The liver showed no obvious abnormalities in shape or size, with smooth borders and no widening of the hepatic fissure.
Plain CT scan showed no obvious abnormal density shadows in the liver parenchyma, and FDG uptake was normal.
Intrahepatic bile ducts were enlarged, with the widest point approximately 1.2 cm.
Punctate high-density shadows were seen in the bile duct of the left lobe of the liver, and FDG metabolism was normal.
A truncation of the bile duct in the porta hepatis showed increased soft tissue density, approximately 2.1 1.7 cm in size, with calcification at the edges, and increased FDG uptake (SUVmax = 2.9).
Postoperative gastric cancer surgery and chemotherapy showed no abnormal density shadows in the surgical area, and FDG metabolism was normal.
The gallbladder showed no clear contrast, and FDG uptake was normal.
The pancreas was normal in shape, with no obvious abnormal density shadows in the parenchyma, no widening of the main pancreatic duct, and no obvious abnormalities in FDG uptake.
The spleen is of acceptable morphology, with punctate or linear high-density shadows visible at the edges; FDG uptake is normal.
Two cystic lesions are seen in the left kidney, the larger one approximately 1.0 cm in long diameter; FDG metabolism is normal.
The right kidney is normal in shape and size, with no obvious abnormal density shadows in the parenchyma; the renal pelvis, calyces, and ureter are not widened; FDG uptake is normal.
Bilateral adrenal gland contrast is normal.
Some strips of colon and small intestine show increased FDG metabolism (SUVmax = 6.8); the rectal wall shows annular thickening and edema, with increased FDG metabolism (SUVmax = 3.6).
The prostate is of normal size and uniform density; FDG uptake is not abnormally increased.
The bladder is generally full, with no obvious positive stones.
No enlarged lymph nodes are seen in the abdomen, pelvis, or retroperitoneal region; FDG metabolism is normal.
A small amount of fluid-density shadow and punctate high-density shadows were seen in the tunica vaginalis of the right testis.
The spine showed slight scoliosis, osteophyte formation at the margins of some vertebral bodies, and bulging of the L3/4 and L4/5 intervertebral discs.
Small, round, dense shadows were visible in the right femoral head and the right segment of the L4 vertebral body.
FDG uptake was normal.
No abnormal FDG metabolism was observed in the entire skeletal system.

Impression

1. a. Post-gastric cancer surgery and chemotherapy, no obvious signs of tumor recurrence were observed locally. b. Mass in the porta hepatis, mildly increased FDG metabolism, cholangiocarcinoma or metastasis to be ruled out; enhanced MRI is recommended for further examination. c. Intrahepatic bile duct dilation, stone in the left lobe bile duct.

2. a. Rectal wall thickening and edema, increased FDG metabolism, inflammation is suspected; colonoscopy follow-up is recommended. b. Increased FDG uptake in strips of the colon and small intestine, considered inflammatory or physiological uptake.

3. Left renal cyst. Calcification at the spleen margin. Right testicular hydrocele with calcification.

4. Multiple chronic inflammatory micronodules in the apical-posterior segment of the left upper lobe and the medial segment of the right middle lobe; an air-filled cavity in the posterior basal segment of the right lower lobe; chronic inflammation and remnants in both lungs. Partial calcification of the aorta and coronary artery walls.

5. Low-density nodule in the lower pole of the left thyroid lobe, with increased FDG metabolism, suggestive of nodular thyroiditis; ultrasound follow-up recommended.

6. Scoliosis with degenerative changes. L3/4 and L4/5 intervertebral disc bulge. Small bone islands in the right femoral head and L4 vertebral body.

7. Bilateral basal ganglia ischemic lesions, age-related brain changes. Minor inflammation of the left maxillary 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