Splenic metastases

Dr Bruno Di Muzio and Dr Henry Knipe et al.

Splenic metastases are relatively rare on imaging, although they are more commonly found on autopsy. Typically they are part of a widespread metastatic disease.

The rate of splenic metastases varies between 1-10% of autopsy studies, depending on whether microscopic or macroscopic metastases were included 1.

Most commonly a solitary splenic (solid or cystic) mass, may rarely be infiltrative 1,4. Primary sources include 1,2,5:

  • solitary or multiple well-defined masses
  • most commonly appear as a hypoechoic lesion (target appearance), although can be iso- or hyperechoic 3,5
  • CEUS: rapid wash-in and wash-out 5
  • usually hypoattenuating masses
  • cystic components may be present 5
  • T1: low signal intensity
  • T2: high signal intensity
  • C+ (Gd): variable, mostly depending on the primary malignancy 5
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Article information

rID: 35112
System: Haematology
Tag: cases
Synonyms or Alternate Spellings:
  • Metastases to the spleen

Cases and figures

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    Metastatic melano...
    Case 1: malignant melanoma
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    Case 2: unknown primary
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