Small cell neuroendocrine carcinoma of the cervix complicated with mental abnormality and refractory hyponatremia: a case report

Small cell carcinoma of the cervix (SCCC) is a rare type of cervical cancer, which has high-degree malignancy, strong invasion, and poor prognosis. It can secrete a variety of hormones because of its particularity. There is a theoretical concern that these hormones do not cause clinical symptoms. However, relatively large studies showed hyponatremia caused by hormones occur in SCCC. Here the authors discuss the clinical course of a 43-year-old woman with SCCC that presented both refractory hyponatremia and neurologic symptoms at the same time. We can attain some experience through the treatment of this patient, that treatment of the primary disease until after the correction of electrolyte disturbances is not proposed. In addition, the complications will alleviate and disappear naturally after treatment of the primary disease.

Small cell carcinoma of cervix; Neuroendocrine carcinoma; SIADH

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