PMC3905332_01
Specimen of spleen with a cyst measuring 8 cm x 8 cm, with cyst wall showing trabeculations
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F1
On serial sectioning, a large cyst of size 8 cm x 8 cm was identified at one end [Figure 1].
Cyst wall lined by flattened epithelium with fibrocollagenous tissue and congested blood vessels (H and E; x100)
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F2
Rest of the splenic tissue showed congestion [Figure 2].
(a) The cells lining the cyst showed positivity for cytokeratin (b) and were negative for CD 34
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F3
The lining cells were positive for pancytokeratin and were negative for CD-34 [Figures 3a and b].