MONDO_0006055 (sex cord-stromal tumor) is a neoplasm involving a sex cord. Also known as: Sex cord stromal tumor, Sex cord stromal tumour, Sex cord-stromal neoplasm, Sex cord-stromal tumor, Sex cord-stromal tumor, no ICD-O subtype, Sex cord-stromal tumor, no ICD-O subtype (morphologic abnormality), Sex cord-stromal tumour, neoplasm of sex cord.