Whole-body 18F-FDG PET/CT scan in a patient with Colon 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: Normal brain morphology and structure; a high-density nodule of approximately 1.4 cm in length was observed in the left temporal region below the skull plate, with no abnormal FDG uptake.
No abnormal density shadows were seen in the brain parenchyma, and no significant abnormalities were observed in FDG uptake.
No widening was observed in the ventricles, sulci, fissures, or cisterns; the ventricles were symmetrical, and there was no midline shift.
Both eyeballs were symmetrical, with no significant abnormalities.
No thickening was observed in the paranasal sinus mucosa, and the sinus walls were intact.
No thickening was observed in the nasopharyngeal wall, and no abnormalities were observed in FDG uptake.
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, with no abnormal FDG uptake.
Both palatine tonsils showed physiological uptake.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The laryngopharynx was normal in morphology and structure.
The thyroid gland was normal in morphology and size, with uniform density, and no abnormalities were observed in FDG uptake.
No significantly enlarged lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; FDG metabolism was normal.
Multiple small ground-glass nodules with relatively clear borders were observed in the upper lingular segment of the left upper lobe and the right lower lobe.
The largest nodule, approximately 0.5 cm in length, was located in the posterior basal segment of the right lower lobe and exhibited a "reverse halo sign." Another small solid nodule, approximately 0.2 cm in length, was observed in the posterior segment of the right upper lobe; FDG uptake was normal in both nodules.
No pleural thickening was observed bilaterally, and there was no pleural effusion or pneumothorax.
No significantly enlarged lymph nodes were observed in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
The esophagus was not dilated, and the esophageal wall showed no significant thickening or mass; FDG uptake was normal.
The bilateral breasts were relatively dense; FDG metabolism was normal.
The liver showed no significant abnormalities in shape or size; the liver margins were smooth, and the hepatic fissure was not widened.
Plain CT scan showed no significant abnormal density shadows in the liver parenchyma; FDG uptake was normal.
The main portal vein showed no significant widening, and no dilation of intrahepatic or extrahepatic bile ducts was observed.
The gallbladder appeared normal in shape and size, with no thickening of the gallbladder wall and no abnormal local FDG uptake.
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 abnormal FDG uptake.
The spleen showed no abnormalities in shape, size, density, or FDG uptake.
Both kidneys were normal in shape and size, with no obvious abnormal density shadows in the parenchyma, no widening of the renal pelvis, calyces, or ureters, and no obvious abnormal FDG uptake.
Bilateral adrenal gland visualization showed no obvious abnormalities.
The stomach was poorly filled, with no significant thickening of the stomach wall and no obvious abnormal FDG uptake.
Postoperative colon cancer surgery and chemotherapy were indicated by a high-density anastomosis device in the surgical area, but FDG metabolism was normal.
The uterus was not visualized.
No abnormal FDG metabolism was observed in the bilateral adnexa.
The bladder was generally full, with no obvious positive stones.
A cystic low-density lesion measuring approximately 2.7*2.1cm was observed in the retroperitoneum of the mid-abdomen; FDG metabolism was normal.
No significant fluid accumulation was observed in the abdominal or pelvic cavities.
Multiple dense small nodules were found subcutaneously in both buttocks; FDG metabolism was normal.
The spinal alignment was normal, with mild osteophyte formation at the margins of some vertebral bodies; FDG uptake was normal.
Subcutaneous calcifications were present in both buttocks.
Systemic bone marrow FDG metabolism was normal.

Impression

1. a. No obvious signs of tumor recurrence were observed after comprehensive treatment for colon cancer. b. A cystic mass in the retroperitoneum of the mid-abdomen, with no obvious abnormalities in FDG uptake, is considered a possible cyst. Further MRI with contrast is recommended to rule out other possibilities.

2. Multiple ground-glass nodules in the left upper lobe and right lower lobe, with no abnormalities in FDG metabolism, are considered atypical adenomatous hyperplasia or inflammatory nodules. Annual HRCT follow-up is recommended.

3. Mild osteophyte formation in the spine. Subcutaneous calcifications in both buttocks.

4. Left temporal meningioma, MRI with contrast is recommended for follow-up.

5. A slightly low-density nodule in liver S5 shown on CT scan at another hospital was not clearly visualized in this examination. Further MRI with contrast is recommended.

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