Neuroendocrine cervical cancer: Have we made any steps forward in its management?

Abstract

Introduction: Neuroendocrine tumors (NEC) were first described by Albores-Saavedra in 1972 and these tumors account for only 0.9% to 1.5% of all invasive cervical cancers.^1,2 The most common type is small cell neuroendocrine carcinoma (SCNEC) of the cervix, which accounts for 80% of cases.2 The poor prognosis despite advances in treatment remains still a huge problem, so the aim of our review is to cover all current therapeutic options.

Method: We searched for all available interventional studies, reviews, case reports and meta-analyses published from 1995 to 2023.

Results: In 2017 Castle et al.⁹ published a systematic review and meta-analysis and concluded that SCNC and large cell neuroendocrine carcinoma (LCNC) are, in most cases, caused by HPV, primarily HPV18 and HPV16. Comparative genomics data suggest that cervical NEC may be genetically more similar to common cervical cancer subtypes than to extra-cervical SCNEC of the lung and bladder.¹³ Surgery is recommended as the primary treatment in early stages of disease, with radical hysterectomy and nodal assessment followed by adjuvant pelvic radiotherapy and/or chemotherapy. However, simple hysterectomy may be adequate when followed by adjuvant radiotherapy with concurrent cisplatin and etoposide as additional chemotherapy.¹⁵ Considering that pathologic and clinical behavior is similar to small cell lung cancer, patients usually receive platinum and etoposide as part of their primary therapy.¹⁶ The recurrent disease remains a major clinical problem, because there is no standard treatment modality for these patients, and individualized therapy is recommeded.

Conclusion: Current therapeutic modalities are mainly based on experience in the treatment of SCNEC of the lung. Certainly, a multidisciplinary approach is very important inorder to design a personalized management plan.