This muscle biopsy is obtained from a 23 year old man with long history of muscle weakness. It is:

1. A congenital myopathy.

2. The salient feature is centrally located nuclei in most muscle fibers.

3. It dose not have nemaline rods.

4. The diagnosis is central core myopathy.

A. I, 2, and 3 are true.

B. Only 1 and 3 are true.

C. Only 2 and 4 are true.

D. Only 4 is true.

E. None of the above.

Answer and Discussion

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