Pathology All of the following are helpful for diagnosis of medullary Ca thyroid except – A Spindle cell stroma with few follicles B Amyloid deposition C Calcitonin in stroma D Histological mitochondria is essential for diagnosis 💡 Explanation All of the following are helpful for diagnosis of medullary Ca thyroid except - ✓ Correct Answer: D. Histological mitochondria is essential for diagnosis