Fig. 2
From: Uncommon metastatic journey: unusual breast metastases of medullary thyroid carcinoma: a case report
(A) Histological section at low magnification showing the carcinomatous proliferation (black arrow) invading the non-neoplastic mammary stroma (white arrow) (H&E x40). (B) Histological section showing the carcinomatous proliferation arranged in islands and clusters of monomorphic cells (H&E x100)