These tumours may be seen in the context of Peutz–Jeghers syndrome or be sporadic. Large tumours are more likely to be sporadic. Small incidental tumours are more likely to be syndromic. It has a distinctive appearance under the microscope, from which it derives its name. Image:Sex<unk>  tumour with<unk><unk>  - intermed mag. Intermed. mag. Image:Sex<unk>  tumour with<unk><unk>  - high mag. High mag.
Sex cord tumour with annular tubules
Embryonal tumour with multilayered rosettes
Sclerosing polycystic adenosis
Germ cell neoplasia in situ
Microcystic adnexal carcinoma
Folliculosebaceous cystic hamartoma
Mucinous cystadenoma
Sex cord–gonadal stromal tumour