Common causes include foods such as peanuts, tree nuts, sesame, fish, shellfish, dairy products and eggs.

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Common causes of slipping margins include increased product costs, increased shipping expense, finance costs, sales and discounting or inventory shrinkage due to theft or waste (food business).

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Less common causes of enlarged lymph nodes include infections such as cat scratch disease, tuberculosis and sexually transmitted diseases.

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Common causes of vocal cord paralysis include viral infections, along with tumors or cancers that can compress the recurrent laryngeal nerve, a branch of the vagus nerve (which provides specific innervation to the heart as well as other vital internal organs).

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