Less common disorders:M
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佚名
| DISEASE AND CAUSES | PATHOPHYSIOLOGY | SIGNS AND SYMPTOMS |
| Mastocytosis | ||
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Proliferation of mast cells systemically and within skin. |
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| Mastoiditis | ||
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An inflammation and infection of the air cells of the mastoid antrum. |
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| Medullary sponge kidney | ||
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Collecting ducts in the renal pyramids dilate, forming cavities, clefts, and cysts that produce complications of calcium oxylate stones and infections. |
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| Melasma | ||
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Thought to be due to the effects of estrogen and progesterone on melanin production. |
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| Mycosis fungoides | ||
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Rare, chronic malignant T-cell lymphoma originating in the reticuloendothelial system of the skin, and affecting lymph nodes and internal organs. |
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| Myelodysplastic syndromes | ||
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Preleukemic disorders that progress to leukemia |
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| Myocarditis | ||
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Initial infection triggers an autoimmune, cellular, and possibly humoral response resulting in myocardial inflammation and necrosis. |
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