Lipomas of the Digestive Tract: General Aspects and Imaging

Abstract Lipomas are the second most common benign, non-epithelial tumor of the gastrointestinal tract after leiomyoma. They can grow at all levels of digestive tract with a variable frequency. This involvement may be single or multiple in one or more segments. These lesions with a low development can rarely cause serious complications requiring prompt treatment. Therapeutic decision is guided by symptoms and tumor size. Conventional radiography with digestive opacification allows locating the tumor. On cross-sectional imaging, lipomas appear as homogeneous fatty tumors or rarely with internal fine septa. Computed tomography and magnetic resonance imaging allow the final diagnosis of lipomas in its uncomplicated forms

Atypical alveolar proteinosis

Alveolar proteinosis is a rare pulmonary disease characterized by intra-alveolar accumulation of surfactant composed of lipoproteinaceous material, related to a lack of surfactant resorption by alveolar macrophages. Crazy paving pattern is characteristic, but not specific. The multinodular forms of this affection remain exceptional