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 scan revealed: a slightly low-density nodule measuring approximately 1.9 2.0 cm within the spleen, with increased FDG metabolism (SUVmax = 23.2).
A homogeneous soft tissue mass measuring approximately 5.3 4.2 cm was observed in the left nasal cavity, left maxillary sinus, and left ethmoid sinus, with increased FDG metabolism (SUVmax = 32.6), and bone destruction of the adjacent maxillary sinus wall.
The left orbit was also involved, with left eyeball protrusion.
The brain morphology and structure were normal, with no abnormal density shadows seen in the brain parenchyma, and no significant abnormalities in FDG uptake.
No widening of the ventricles, sulci, fissures, or cisterns was observed; the ventricles were symmetrical, and there was no midline shift.
No significant abnormalities were observed in the right eyeball.
No thickening of the nasopharyngeal wall was observed, and FDG uptake was normal.
The pharyngeal recesses were symmetrical, and there was no stenosis of the Eustachian tube openings.
The infratemporal and pterygopalatine fossae were structurally normal, and the bilateral parapharyngeal spaces were clear, with no abnormal FDG uptake.
The palatine tonsils showed physiological uptake.
The laryngopharynx was normal in morphology and structure.
No abnormal density shadows were observed in the bilateral parotid and submandibular glands.
The right lobe of the thyroid gland was well-formed and of uniform density, while the left lobe was less clearly visualized, with no abnormal FDG uptake.
Several small lymph nodes were observed in the bilateral deep cervical spaces, submandibular region, and submental region; the largest was located in the left deep cervical space, with a short diameter of approximately 0.6 cm, showing increased FDG metabolism (SUVmax = 5.6).
Multiple patchy and flocculent hazy shadows were observed in the left lower lobe of the lung, with increased FDG metabolism (SUVmax = 3.6); a few linear and punctate foci were observed in the remaining lungs, with no abnormal FDG uptake.
No thickening of the pleura was observed bilaterally, and there was no effusion or pneumothorax in the bilateral pleural cavities.
Several lymph nodes were observed in the bilateral pulmonary hila, pretracheal space, para-aortic arch, main pulmonary artery window, and below the tracheal carina, the largest with a short diameter of approximately 1.0 cm.
FDG metabolism was increased, with SUVmax = 5.6.
The cardiac silhouette was normal.
Calcification was observed in some arterial walls (including the coronary arteries).
The esophagus was not dilated, and the wall showed no significant thickening or mass; FDG uptake was not increased.
Both breasts were normal, with no abnormal FDG metabolism.
The liver showed no significant abnormalities in shape or size, with smooth borders, no widening of the hepatic fissure, and no significant abnormal density shadows in the liver parenchyma on plain CT scan; 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 or size, no thickening of the gallbladder wall, and no abnormal local FDG uptake.
The pancreas was normal in shape, with no significant abnormal density shadows in the parenchyma; the main pancreatic duct was not widened, and FDG uptake was normal.
Both kidneys are normal in shape and size, with no obvious abnormal density shadows seen in the parenchyma.
The renal pelvis, calyces, and ureters are not widened, and FDG uptake is not significantly abnormal.
Bilateral adrenal glands show no obvious abnormalities on contrast imaging.
The stomach is poorly distended, with no obvious thickening of the gastric wall, and FDG uptake is not significantly abnormal.
The intestines are poorly distended, with increased FDG metabolism in the terminal ileum and part of the colon (SUVmax = 5.3).
An air-filled cavity is seen in the descending duodenum, with no abnormal FDG metabolism.
The uterus is normal in shape, with a low-density shadow measuring approximately 2.0 1.7 cm within the uterine cavity, showing absent FDG uptake.
No abnormal FDG metabolism is seen in the bilateral adnexa.
The bladder is generally distended, with no obvious positive stones.
No enlarged lymph nodes are seen in the abdominal cavity, pelvis, or retroperitoneal region, and FDG metabolism is not abnormal.
No significant fluid accumulation is seen in the abdominal or pelvic cavities.
The spinal alignment was normal, with some vertebral body margin osteophytes, L4/5 and L5/S1 intervertebral disc bulges, and no abnormalities in FDG uptake.
Systemic bone marrow FDG metabolism was increased, with an SUVmax of 3.2.
The mediastinal blood pool SUVmax was 2.0, and the liver SUVmax was 4.2, used for the Deauville score.

Impression

1. a. Space-occupying lesions in the left nasal cavity, left maxillary sinus, and left ethmoid sinus, with increased FDG metabolism, consistent with lymphoma, involving the left orbit, with exophthalmos. b. Hypermetabolic lesions in the spleen, suggestive of lymphoma infiltration. c. Possible infection in the left lower lobe of the lung, lymphoma infiltration to be ruled out; follow-up examination after treatment is recommended for comparison. d. Multiple lymph nodes in both sides of the neck, both hilum, and mediastinum, with increased FDG metabolism, highly suggestive of reactive lymph node hyperplasia; follow-up is recommended to rule out lymphoma infiltration. e. Possible reactive hyperplasia of the entire bone marrow; follow-up is recommended to rule out lymphoma infiltration.

2. A few chronic inflammations and old lesions in both lungs. Calcification of some arterial walls (including coronary arteries).

3. Increased FDG metabolism in the terminal ileum and part of the colon, suggestive of inflammatory or physiological uptake. Duodenal diverticulum in the descending part.

4. Possible uterine cavity effusion, cystic lesions cannot be ruled out; further ultrasound examination is recommended.

5. Degenerative changes in the spine. L4/5 and L5/S1 intervertebral disc bulge.

6. No 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