A 36 Year Old Woman Noticed a Lump in Her

A 36 year old woman noticed a lump in her neck.When seen by her GP,she also noted that she had been fatigued lately.He palpated a nodular thyroid that was somewhat tender.Because of the cosmetic defect that the patient felt,the thyroid was removed.A representative section is shown in the accompanying photomicrograph.Which one of the following is the best diagnosis?

A) Follicular carcinoma
B) Graves' disease
C) Hashimoto's thyroiditis
D) Multinodular goitre
E) Papillary carcinoma
F) Thyroid adenoma