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Multiple Choice

Myxedema is best described as which condition?

Myxedema describes severe thyroid hormone deficiency in an adult. When thyroid hormone levels drop dramatically, mucopolysaccharides accumulate in the skin and other tissues, causing generalized nonpitting edema, thickened and dry skin, and a slowed metabolism with fatigue and cold intolerance. This is characteristic of adult hypothyroidism with severe hormone deficiency. The other conditions don’t fit this picture: a hyperthyroid state presents with weight loss and heat intolerance; diabetes insipidus causes excessive urination and thirst due to ADH issues; a pineal gland tumor affects melatonin-related functions and doesn’t produce the hypothyroid edema pattern seen in myxedema.

Myxedema describes severe thyroid hormone deficiency in an adult. When thyroid hormone levels drop dramatically, mucopolysaccharides accumulate in the skin and other tissues, causing generalized nonpitting edema, thickened and dry skin, and a slowed metabolism with fatigue and cold intolerance. This is characteristic of adult hypothyroidism with severe hormone deficiency.

The other conditions don’t fit this picture: a hyperthyroid state presents with weight loss and heat intolerance; diabetes insipidus causes excessive urination and thirst due to ADH issues; a pineal gland tumor affects melatonin-related functions and doesn’t produce the hypothyroid edema pattern seen in myxedema.