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, 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 contours; the retrobulbar structures were clear, and FDG uptake was normal.
Truncate soft tissue density shadows were seen in both maxillary sinuses; no significant thickening of the remaining paranasal sinus mucosa was observed, and the sinus walls were intact.
No significant thickening of the soft tissue on both sides of the nasopharyngeal walls was observed; the bilateral pharyngeal recesses were symmetrical, and FDG uptake was normal.
The oropharynx and laryngopharynx had normal morphology and structure, and the parapharyngeal spaces were clear.
The bilateral parotid and submandibular glands had normal size, shape, and density; FDG uptake was physiological.
The thyroid gland is normal in shape and size, with no obvious abnormal density shadows, and FDG uptake is normal.
No obviously enlarged lymph nodes were seen in the bilateral deep cervical spaces, submandibular region, and submental region, and FDG uptake was normal.
A soft tissue mass was seen at the left lower pulmonary ligament, with clear borders, irregular shape, and a size of approximately 4.73.53.1cm.
The density was not uniform, and no obvious necrosis or calcification was seen within it.
FDG uptake was increased, SUVmax=8.1.
The adjacent bronchus was compressed and narrowed with partial occlusion.
No obvious obstructive pneumonia or atelectasis was seen in the distal lung parenchyma.
An irregular soft tissue nodule was seen in the posterior segment of the right upper lobe, with clear borders, and a size of approximately 1.91.51.4cm.
Small vacuolar shadows were seen within it, and spiculated shadows and vascular entanglement were seen at the edges.
The adjacent bronchus showed traction changes, and FDG uptake was increased, SUVmax=8.5.
Scattered, multiple miliary lesions and small nodules of varying sizes were observed in both lungs.
The largest was located in the left lower lobe, with a long diameter of approximately 1.0 cm and clear borders.
FDG uptake was slight, with an SUVmax of 1.8.
FDG uptake in the remaining nodules was normal.
A few patchy and linear shadows were observed in both lungs.
Partial atelectasis was observed in the right lower lobe, with no abnormal FDG uptake.
A small amount of pleural effusion was present on the right side.
Enlarged lymph nodes were observed in the left lower hilum, with the largest having a short diameter of approximately 1.0 cm and increased FDG uptake (SUVmax = 4.7).
No enlarged lymph nodes were observed in the right hilum or mediastinum, with no abnormal FDG uptake.
The heart size was normal.
An IV port was in place.
The esophagus was not dilated, and the wall was not significantly thickened or swollen.
FDG uptake was normal.
The stomach was adequately filled, with slight thickening of the gastric wall in some areas.
FDG uptake was increased (SUVmax = 3.3).
Postoperatively, a linear dense shadow was observed at the junction of the descending and sigmoid colon, with no local thickening of the intestinal wall and normal FDG uptake.
The remaining intestinal distension was unsatisfactory, with no local masses and physiological FDG uptake in some segments.
A pouch-like shadow was observed in the descending duodenum, with normal FDG uptake.
Postoperatively, the liver metastases showed irregular morphology.
Local depressions with dense shadows were observed at the right posterior lobe and the junction of the left and right lobes, with small patchy low-density lesions in the latter.
FDG uptake was absent.
Multiple low-density nodules and masses were observed in the remaining liver parenchyma, with indistinct margins.
The largest nodule had a long diameter of approximately 7.2 cm and contained patchy low-density lesions.
FDG uptake was increased in a ring, with SUVmax = 10.4.
Enlarged and enlarged lymph nodes were observed in the porta hepatis, the hepatogastric space, and the lower esophagus in the posterior mediastinum, with the largest having a long diameter of approximately 1.7 cm.
FDG uptake was increased, with SUVmax = 10.0.
A soft tissue nodule was observed next to the lower abdominal aorta on the left side.
The nodule had clear borders, with some areas showing possible fusion.
The largest nodule was approximately 2.3 cm in length, containing linear dense shadows.
FDG uptake was increased (SUVmax = 7.5).
No significant effusion was observed in the abdominopelvic cavity.
The gallbladder was not clearly visualized.
No dilation of the intrahepatic bile ducts was observed.
A roundish low-density lesion was observed in the common bile duct (upper pancreatic segment), the largest being approximately 3.7 cm in length.
The cyst wall was poorly visualized, and FDG uptake was increased in a ring shape (SUVmax = 3.5).
The peripancreatic spaces were clear, with no obvious abnormal density shadows in the parenchyma.
The pancreatic duct was not widened, and no abnormal FDG uptake was observed.
The spleen was of normal shape and size, with no abnormalities in density or FDG uptake.
The bilateral adrenal glands were of normal shape, size, and density, with no abnormalities in localized FDG uptake.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows seen in the renal parenchyma, and FDG uptake is normal.
No widening of the renal pelvis, calyces, or ureters is seen bilaterally; a punctate high-density lesion is seen in the left renal calyx.
The bladder is poorly filled, and no positive stones are seen in the lumen.
The prostate is enlarged, but no focal abnormal increase in FDG uptake is seen.
The spinal alignment is normal, with minor osteophyte formation at the margins of some vertebral bodies; small patchy low-density lesions with surrounding sclerotic borders are seen at the margins of several lumbar vertebrae, and FDG uptake is normal.
Calcification of the nuchal ligament is present.
A patchy low-density lesion with a sclerotic border, approximately 1.2 cm in long diameter, is seen in the left iliac bone; FDG uptake is normal.

Impression

1. a. Postoperative colon cancer surgery, no clear signs of tumor recurrence were observed at the anastomosis site. Please follow up with colonoscopy.? b. Postoperative changes in liver metastases with a small amount of local effusion; multiple metastases in the remaining liver.? c. Multiple lymph node metastases in the hepatic hilum, hepatogastric space, lower esophageal segment of the posterior mediastinum, and left lower hilum. Metastasis to the left side of the lower abdominal aorta.? d. Soft tissue lesions in the left lower pulmonary ligament and posterior segment of the right upper lobe with significantly increased FDG metabolism; multiple solid miliary lesions and small nodules in both lungs, with a larger one in the left lower lobe showing mildly increased FDG metabolism. All of the above lesions are considered metastases. Please compare with old films and follow up with CT scan.

2. Cystic low-density lesion with increased FDG metabolism in the common bile duct (upper pancreatic segment) area, suggestive of possible lymph node metastasis with internal necrosis. Please compare with old films and perform enhanced MRI.

3. Left renal calculus. Benign prostatic hyperplasia.

4. Manifestations of chronic gastritis. Duodenal diverticulum in the descending part of the duodenum.

5. A few chronic pulmonary lesions and sequelae, a small amount of pleural effusion on the right side with partial atelectasis in the lower lobe of the right lung.

6. Mild osteophyte formation in some vertebral bodies, multiple Schmorl's nodes in the lumbar vertebrae. Benign osteopathy in the left iliac bone.

7. No obvious abnormalities were found on cranial scintigraphy; enhanced MRI may be necessary. Small submucosal cysts in both maxillary sinuses.

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