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Can Hashimoto's Thyroiditis Cause Myositis?

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Posted on Sat, 14 Mar 2015
Twitter Sat, 14 Mar 2015 Answered on
Twitter Mon, 6 Apr 2015 Last reviewed on
Question : Can Hashimmotis thyroiditis produce a myositis like picture ?
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Answered by Dr. Shehzad Topiwala (1 hour later)
Brief Answer:
Thyroid

Detailed Answer:
Yes it can but the hypothyroidism caused by the Hashimoto's needs to be severe enough to cause muscle damage. So if hypothyroidism is undiagnosed or untreated then the TSH. can rise significantly. In such cases muscles can get affected. However it results in a 'myopathy' rather than 'myosotis'. The latter refers to inflammation of the muscle just like the process occurring in the thyroid in Hashimoto's. But it is more of a muscle weakness
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Shehzad Topiwala

Endocrinologist

Practicing since :2001

Answered : 1663 Questions

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Can Hashimoto's Thyroiditis Cause Myositis?

Brief Answer: Thyroid Detailed Answer: Yes it can but the hypothyroidism caused by the Hashimoto's needs to be severe enough to cause muscle damage. So if hypothyroidism is undiagnosed or untreated then the TSH. can rise significantly. In such cases muscles can get affected. However it results in a 'myopathy' rather than 'myosotis'. The latter refers to inflammation of the muscle just like the process occurring in the thyroid in Hashimoto's. But it is more of a muscle weakness