Exam 20: Endocrine System

A 24 year old woman noted a swelling in her neck.She sought advice from her GP who also noticed some enlarged cervical lymph nodes.The GP recommended she have her thyroid gland surgically removed,which was accomplished within the week.A representative section of the gland is shown in the accompanying photomicrograph.Which one of the following is the best diagnosis?

A 27 year old woman was jogging on her treadmill,as she did every day,but noticed her pulse reached 160 beats per minute within 60 seconds on the track.She quickly exhausted herself.She sought advice from her GP who found out she was also losing weight.The GP also noticed a large,bulging thyroid gland in her neck.The gland was later removed,and a representative section is shown in the right side of the accompanying photomicrograph,with normal tissue for comparison on the left.Which one of the following is the best diagnosis?

A 57 year old woman with diabetes and chronic renal failure was experiencing several bouts with kidney stones.These were proven to be derived from calcium,and her serum calcium level was found to be high normal.Her parathyroid glands were all removed,and a representative gland is shown in the bottom photomicrograph,compared to a normal parathyroid (from another patient)in photo (a).Which one of the following is the best diagnosis?

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?