Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
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To describe an association between Graves' disease and myasthenia gravis and discuss the clinical features and laboratory tests that may help distinguish these two diseases. ⋯ The overlapping clinical features may cause diagnostic confusion when myasthenia gravis and Graves' disease coexist, and numerous tests may be needed to distinguish these two conditions, which have differing treatments and prognoses.