Thyroid-Like Follicular Carcinoma of the Kidney in a Young Patient with History of Pediatric Acute Lymphoblastic Leukemia
Figure 2
Histologic and immunophenotypic features of TLFCK on biopsy. (a) Low power view of biopsy showed an atypical area with microfollicles surrounded by chronic inflammatory reaction. (b) High power view demonstrated microfollicles with eosinophilic material filling tubular lumens. ((c) and (d)) Immunohistochemical staining of tumor cells showed reactivity for (c) CK7 and (d) EMA. ((e) and (f)) Tumor cells lacked immunoreactivity for (e) WT-1 and (f) CD56. Scale bars represent 100 μm.
