PMC3928915_01
Hypodense splenic mass
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F1
On CT-scan examination the hypodense mass was shown at central portion of spleen that induced marginal bulging [Figure 1].
Well circumscribed bulging brown colored mass
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F2
After sectioning a well circumscribed bulging brown colored mass, 8 cm in greatest diameter was identified with softer consistency than splenic tissue [Figure 2].
Diffuse infiltration of fibroblasts and inflammatory cells
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F3
On microscopic examination, the mass showed diffuse infiltration of fibroblasts and inflammatory cells mainly composed of lymphocytes, significant number of plasma cells, some histiocytes and neutrophils [Figure 3].
Anaplastic lymphoma kinase 1 is negative in myofibroblastic cells
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F4