Thyrotoxic myopathy affects ?: (A) Muscles of the neck, (B) Proximal limb muscles, (C) Distal limb muscles, (D) Muscles of the tongue
Answer is B. Thyrotoxic myopathy affects proximal limb muscles i.e. the front thigh muscles, arm muscles. Weakness is more when muscle contracts isometrically either while getting down steps or lifting a full bucket. Once hypehyroidism is controlled, recovery occurs. Reference : page 473 SRB's manual of surgery 5th edition