This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
Carpal tunnel syndrome can be caused by the following except - 
Select and explain. 
A. Diabetes Mellitus, B. Amyloidosis, C. Addison's Disease, D. Hypothyroidism
C: Addison's Disease
Answer: C: Addison's Disease 
Explanation: Causes of carpal tunnel syndrome

There are many causes of carpal tunnel syndrome : -


idiopathic: - This is the most common cause.
Pregnancy and menopause
Metabolic : - Gout, Diabetes mellitus
Endocrine : - Hypothyroidism, Myxedema, Acromegaly, Hyperparathyroidism.
Deposition disorder : - Amyloidosis, Sarcoidosis, Rheumatid arthritis, Leukemia, CRF, Mucopolysaccharoidosis.
Alcoholism
Local causes: - Malunited Colle's fracture, osteoarthritis of the carpal bones, synovitis of flexor tendon sheath, hematoma.