An ectopic hormone is a hormone produced by tumors derived from tissue that is not typically associated with its production.
[1] On the other hand, the term entopic is used to refer to hormones produced by tissue in tumors that are normally engaged in the production of that hormone.
[2] The excess hormone secretion is considered detrimental to the normal body homeostasis.
[3] This hormone production typically results in a set of signs and symptoms that are called a paraneoplastic syndrome.
[2] Some clinical syndromes caused by ectopic hormone production include: