One of the following thyroid carcinomas is associated with the production of thyrocalcitonin and pheochromocytoma:

Correct Answer: B

Rationale: Medullary thyroid carcinoma produces calcitonin and is linked to pheochromocytoma in MEN2 syndromes.

Correct Answer: D

Rationale: Steroids increase gluconeogenesis, leading to hyperglycemia.

Correct Answer: C

Rationale: Thymectomy can improve myasthenia gravis in cases with thymoma by reducing autoantibody production.

Correct Answer: A

Rationale: Herpes zoster primarily affects the dorsal root ganglion, causing segmental rash and pain.

Correct Answer: C

Rationale: Myoclonic seizures involve sudden, brief muscle jerks.