MRCP UK EXAMINATIONS

NEUROLOGY

MYOTONIC DYSTROPHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Disease characterized by the inability to relax muscles at will following contractions
A
Fibromylasia
B
Duchenne’s muscular dystrophy
C
Fibrodysplasia ossificans progressiva
D
Myotonic muscular dystrophy
Explanation: 

Detailed explanation-1: -Myotonia congenita is an inherited neuromuscular disorder characterized by the inability of muscles to quickly relax after a voluntary contraction.

Detailed explanation-2: -Progressive weakness and muscle wasting (a decrease in muscle strength and size) caused by degenerating muscle fibers begins in the upper legs and pelvis before spreading into the upper arms. Other symptoms include: Loss of some reflexes. A waddling gait.

Detailed explanation-3: -MMD patients may experience painful muscle cramping because of myotonia, which is delayed relaxation or sustained contraction of the muscle fibers. Grip myotonia can be shown by delayed opening of the hand with difficulty extending the fingers after tight grip.

Detailed explanation-4: -Muscular dystrophy is a group of inherited diseases characterized by weakness and wasting away of muscle tissue, with or without the breakdown of nerve tissue.

There is 1 question to complete.