Synchronous mucinous metaplasia and neoplasia of the female genital tract with external urethral meatus neoplasm: A case report

Highlights • We present a case of multiple mucinous metaplasia and neoplasia of cervix, endometrium, fallopian tube, ovary, and mesenterium with external urethral meatus neoplasm. • Immunohistochemistry showed almost same pattern in each neoplasms. • PCR-direct sequencing showed no existence of both KRAS and GNAS mutations. • This report suggests a possibility of synchronous mucinous metaplasia and neoplasia “beyond” female genital tract.