PMC7984877_01
CT of June 2, 2016 showing posteromedial oval image to the left kidney of 2,4 cm.
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In addition to the common abdominal imaging findings, the abdominal CT scan showed an oval image of densified posteromedial fat attenuation in the left kidney (Figure 1).
CT of November 2019 showing the important growth of the mass located between the left kidney and the psoas muscle.
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During an outpatient follow-up in 2019, a new abdominal CT detected a significant increase in mass size, measuring 7.1 x 5.0 x 7.0 cm, without evidence of suspicious lymphadenopathy (Figure 2).
Mature adipose tissue associated with a mixed inflammatory infiltrate with sparse hematopoietic precursors, lymphocytes, and plasmacytes. Hematoxylin Eosin (HE) 100 X.
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Immunohistochemistry showing the absence of expression of the MDM2 protein, CDK4.
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