nbme1 blk4q 45 - niceday

[ArchivalUser]

45. A 20-year-old man comes for a routine health maintenance examination. He has a 15-year history of difficulty relaxing his hands after tightly gripping objects or after shaking hands. His father has cataracts and frontal baldness. Examination shows thin forearms. There is moderate weakness of the hands and difficulty releasing after gripping with his hands. Which of the following is the most likely diagnosis?

A
) Amyotrophic lateral sclerosis

B
) Cervical spondylosis

C
) Multiple sclerosis

D
) Myasthenia gravis

E
) Myasthenic (Lambert-Eaton) syndrome

F
) Myotonic muscular dystrophy

G
) Polymyalgia rheumatica

H
) Polymyositis

I
) Progressive neuropathic (peroneal) muscular atrophy

[ArchivalUser]

F) myotonic dystrophy

[ArchivalUser]

I gGUESS F.IS ANYONE CAN EXPLAIN THIS QUESTION ANSWER. THANX.

[ArchivalUser]

wasting of the muscles (muscular dystrophy), posterior subcapsular iridescent cataracts (opacity of the lens of the eyes), heart conduction defects, endocrine changes and myotonia (difficulty relaxing a muscle).is all part of myotonic dystrophy

for detail read this http://en.wikipedia.org/wiki/Myotonic_dystrophy