Neuromuscular

Unknowns: Neuropathic disorders

Each of these biopsies is from a patient with a neuropathy.
What is the most likely diagnosis?

A

H & E stain
What are the different causes of small angular muscle fibers?
What stains are useful in this differential diagnosis?

Answer

B

ATPase pH 9.4 stain
What disease most commonly produces this pattern of muscle fiber atrophy?.

Answer

C

NADH-TR stain
What processes produce this anatomical change in muscle fibers?
What muscle most frequently shows this change?

Answer

D

ATPase pH 9.4 stain
What disease most commonly produces this pattern of muscle fiber atrophy?.

Answer

E

VvG stain
What is this structure (arrow)?

Answer

F

H & E stain
What is this darkly staining structure (center)?
What does it say about the course of the pathologic process?

Answer



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12/30/2010