Leiomyoma of the small bowel is an uncommon mesenchymal tumour. They occur most frequently in the jejunum 1.
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Clinical presentation
May present with abdominal pain, haemorrhage and anaemia secondary to ulceration and bleeding, though many are indolent 2.
Radiographic features
CT
well-circumscribed soft-tissue mass, typically homogeneously enhancing but may have variable enhancement patterns 1
large lesions can be associated with calcification and ulceration
MRI
homogenous and sharply defined soft tissue lesion 1
usually exhibits uniform post-gadolinium enhancement
Differential diagnosis
gastrointestinal stromal tumour (GIST): may be indistinguishable on imaging 1
leiomyosarcoma of the small bowel: larger lesion (> 6 cm), ill defined margins, surrounding lymphadenopathy, central necrosis 1