Alveolar Soft Part Sarcoma of Urinary Bladder Occurring as a Second Primary Malignancy: A Case Report and Literature Review

Figure 2

H&E staining on low-powered field. The infiltrative tumor composed of polygonal cells, which arranged in small nests and intervened with blood vessels. These tumor cells posed abundant finely granular eosinophilic to foamy cytoplasm and moderately irregular nuclei.