Benign solid lesions that may involve the spleen

What are some benign solid lesions that may involve the spleen?

Hemangioma, hamartoma, and sarcoidosis.

Hemangioma is the most common benign vascular neoplasm of the spleen, is typically <2 cm in size, and has low attenuation, low-intermediate T1-weighted and high T2-weighted signal intensity, peripheral enhancement, and centripetal fill-in of enhancement on delayed phase postcontrast images.

Hamartoma is an uncommon nonneoplastic benign lesion which is typically solitary and round in shape, has intermediate attenuation, intermediate T1-weighted and high T2-weighted signal intensity relative to spleen, and diffuse early enhancement which becomes isointense to spleen on delayed phase images.

Sarcoidosis, due to idiopathic formation of noncaseating granulomas, may demonstrate low attenuation, low signal intensity, and hypoenhancing lesions in the spleen along with splenomegaly (the most common finding), hepatomegaly, hepatic lesions, and lymphadenopathy.


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