Whole-body 18F-FDG PET/CT scan in a patient with Lymphoma 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: Following chemotherapy for lymphoma: Several small lymph nodes, approximately 0.2-0.5 cm in short diameter, were observed in the bilateral deep cervical spaces, bilateral axillae, and para-aortic region; FDG metabolism was normal.
Small lymph nodes, approximately 0.9*0.6 cm in size, were also visible in the bilateral inguinal regions; FDG uptake was normal.
A few punctate low-density shadows were observed in the deep bilateral cerebral regions; no abnormal density shadows were observed in the remaining brain parenchyma, and FDG uptake was normal.
The ventricles, sulci, fissures, and cisterns were widened; the ventricles were symmetrical, and there was no midline shift.
The eyeballs were symmetrical and showed no obvious abnormalities.
The left sphenoid sinus mucosa was slightly thickened, but the sinus wall was intact.
The nasopharyngeal wall was not thickened; FDG uptake was normal, and the pharyngeal recesses were symmetrical.
The morphology and structure of the oropharynx and laryngopharynx were normal.
No abnormal density shadows were seen in the bilateral parotid and submandibular glands.
The thyroid gland was normal in shape and size, with uneven density and multiple low-density nodules; FDG uptake was normal.
Several small ground-glass nodules were seen in the upper lobes of both lungs, the largest being located in the apical segment of the right upper lobe, with a long diameter of approximately 0.5 cm and a maximum CT value of approximately -772 HU; the borders were relatively clear, and FDG metabolism was normal.
Multiple solid nodules were seen in both lungs, with a long diameter of approximately 0.2-0.3 cm; the borders were clear, and FDG metabolism was normal.
A few patchy, linear, and punctate lesions were also seen in the remaining lungs; FDG metabolism was normal.
No pleural thickening was seen bilaterally, and there was no pleural effusion or pneumothorax bilaterally.
No significantly enlarged lymph nodes were seen in the bilateral hilar and mediastinal regions.
The cardiac silhouette was normal.
Some arterial walls showed calcification (including the coronary arteries).
A catheter was inserted in the superior vena cava.
No esophageal dilation was seen, and no significant thickening or mass was seen in the esophageal wall; FDG uptake was not increased.
The liver showed no obvious abnormalities in shape and size, with smooth liver margins and no widening of the hepatic fissures.
Patchy low-density lesions were observed within the liver parenchyma, the largest being approximately 0.4 cm in length.
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 showed no abnormalities in shape and size, with nodular dense shadows at the fundus 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.
A cystic lesion was observed in the left kidney, approximately 1.7 cm in length, with absent FDG uptake.
The right kidney was normal in shape and size, with no obvious abnormal density shadows in the parenchyma and no abnormal FDG uptake.
No widening of the renal pelvis, calyces, or ureters was observed bilaterally, and no positive stones were found.
Bilateral adrenal gland contrast imaging showed no obvious abnormalities.
The stomach was adequately distended, with slight thickening of the gastric wall in some areas.
FDG uptake was increased, with SUVmax = 2.7.
Intestinal distension was poor, with increased FDG uptake in some intestinal segments (SUVmax = 6.2).
The prostate was of normal size, with small punctate calcifications observed; FDG uptake was not abnormally increased.
The bladder was poorly distended, but no obvious positive stones were observed.
No significant fluid accumulation was observed in the abdomen or pelvis.
A soft tissue mass measuring approximately 7.7*5.3*8.1cm was observed in the intermuscular space of the left groin, with uneven density and increased FDG uptake (SUVmax = 2.4).
The spinal alignment was normal, with osteophyte formation at the margins of some vertebral bodies and L4/5 disc bulging; FDG uptake was normal.
Calcification of the nuchal ligament was present.
The mediastinal blood pool SUVmax was 2.7, and the liver SUVmax was 2.8, used for the Deauville score.

Impression

1. Post-lymphoma treatment: No enlarged lymph nodes were observed throughout the body; small lymph nodes were visible; FDG metabolism was not increased, roughly similar to the PET/CT results from our center on May 27, 2022, suggesting that tumor activity was largely suppressed after lymphoma treatment.

2. A space-occupying lesion in the intermuscular space of the left groin with increased FDG uptake, slightly larger than before. Considering the medical history, a recurrence of leiomyoma is suspected; please confirm with pathology.

3. a. Several ground-glass nodules in the upper lobes of both lungs, with no abnormal FDG metabolism, suggestive of inflammatory nodules or atypical adenomatous hyperplasia; annual HRCT follow-up is recommended. b. Several small chronic inflammatory nodules (solid) in both lungs. c. A few chronic inflammations and old lesions in both lungs. Calcification of some arterial walls (including coronary arteries).

4. Manifestations of chronic gastritis; gastroscopy follow-up is necessary if needed. Physiological uptake of some intestinal segments.

5. Gallstones. Small liver cysts. Left renal cyst. Prostatic calcification.

6. Spinal degenerative changes.

7. L4/5 disc bulge.

8. Few ischemic lesions in the deep bilateral brain regions, indicative of age-related brain changes.

9. Chronic inflammation of the left sphenoid sinus.

10. Nodular goiter, likely large, similar to the previous findings; ultrasound follow-up 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