|Classification and external resources|
Medullary carcinoma may refer to one of several different tumors of epithelial origin. As the term "medulla" is a generic anatomic descriptor for the mid-layer of various organ tissues, a medullary tumor usually arises from the "mid-layer tissues" of the relevant organ.
Medullary carcinoma most commonly refers to:
Medullary carcinoma may also refer to tumors of:
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