FDG PET/CT in Cryptogenic Multifocal Ulcerating Stenosing Enteropathy.

Area of Science:

• Gastroenterology
• Nuclear Medicine
• Radiology

Background:

• Cryptogenic multifocal ulcerating stenosing enteropathy (CMUSE) is a rare small intestine disease.
• It presents with anemia or obstruction due to small bowel ulcers and strictures.

Observation:

• A case of CMUSE demonstrated multiple foci of activity in the small bowel on FDG PET/CT.
• This imaging finding is crucial for understanding the disease's presentation.

Findings:

• FDG PET/CT can reveal multifocal activity in the small bowel in CMUSE.
• This activity pattern is similar to other conditions affecting the small intestine.

Implications:

• CMUSE should be considered in the differential diagnosis of multifocal small bowel FDG activity.
• This includes differentiating it from conditions like lymphoma, carcinoma, tuberculosis, Crohn disease, Behçet disease, and drug-induced enteropathy.