<prompt> Amyloid like stroma is seen in-Papillary tumorFollicular tumorMedullary tumorAnaplastic tumor  <response>: harshmohan textbook of pathology 7th edition. most medullary carcinoma of thyroid have amyloid deposits in stroma which stains positively with Congo red.the amyloid deposits are believed to represents stored calcitonin derived from the neoplastic C cells in the form of pro hormone. 