Splenic lesions and anomalies

Changed by Yuranga Weerakkody, 15 Aug 2018

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There are a number of splenic lesions and anomalies:

Congenital anomalies

Mass lesions

Benign mass lesions

splenic cyst (mnemonic)
splenic pseudocyst
splenic haemangioma: commonest benign splenic lesion
splenic lymphangioma
splenic hamartoma
sclerosing angiomatoid nodular transformation (SANT): fibrosing variant of hamartoma
extramedullary haematopoiesis in the spleen
splenic abscess: sonographically characterised by multiple “target” lesions
~~splennic~~splenic inflammatory pseudotumour⁷
splenic lipoma
splenic a ngiomyolipoma
splenic fibroma ⁷
sarcoidosis
focal splenic lesions in type I Gaucher disease ⁸

Indeterminate mass lesions

Malignant mass lesions

lymphoma: commonest malignant tumour with splenic involvement ²
angiosarcoma of spleen: commonest primary malignant splenic tumour³
haemagiopericytoma of spleen
splenic metastases: 50% malignant melanoma

Diffuse infiltrative processes

Usually manifests as splenomegaly. Some can present as distinct lesions, e.g. granulomas

Other abnormalities

splenic rupture
- traumatic: spleen is the most frequently injured intra-abdominal organ in blunt trauma ²
- non-traumatic
splenic infarction
splenosis

~~-<a href="/articles/splennic-inflammatory-pseudotumour">splennic </a><a href="/articles/inflammatory-pseudotumour-7">inflammatory pseudotumour</a>7 </li>~~
+<a href="/articles/splennic-inflammatory-pseudotumour">splenic </a><a href="/articles/inflammatory-pseudotumour-7">inflammatory pseudotumour</a>7 </li>
~~-<li>focal splenic lesions in type I <a title="Gaucher disease" href="/articles/gaucher-disease">Gaucher disease</a> 8~~
+<li>focal splenic lesions in type I <a href="/articles/gaucher-disease">Gaucher disease</a> 8

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