A patient with myasthenia gravis is found to have an anterior mediastinal mass.This mass proves to be a tumor.Most likely it is a:
A) Thyroid adenoma
B) Parathyroid adenoma
C) Neuroblastoma
D) Smooth muscle cell tumor
E) Thymoma

Question

Quizplus · Accepted Answer

Myasthenia gravis is often associated with thymoma, a tumor of the thymus gland located in the anterior mediastinum. Thyroid adenomas and parathyroid adenomas are typically found in the neck and not in the mediastinum. Neuroblastomas are more commonly found in children and smooth muscle cell tumors, such as leiomyomas, are rare in the mediastinum.

A Patient with Myasthenia Gravis Is Found to Have an Anterior