This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S., Subject name: Medicine
A 23-year-old woman with impaired pain and temperature sensation in her arms but normal light touch. ACT scan reveals dilatation of the central part of the spinal cord in the cervical region (syringomyelia) For the above patient with a neurologic condition, select the most likely associated findings. 
Select and explain. 
A. hyperkalemia, B. weakness and atrophy of the hands, C. hypokalemia, D. hypercalcemia
B: weakness and atrophy of the hands
Answer: B: weakness and atrophy of the hands 
Explanation: Syringomyelia is characterized by a dissociated sensory loss. Atrophy of the muscles can result in a claw hand deformity. Fasciculations are commonly found.