6 A secondary melanoma in teratomatous
lesions originates at the dermo-epidermal junction similar to a cutaneous melanoma.
Biopsy of the mediastinal mass suggested a GCT with immature teratomatous
Ovarian mucinous tumors associated with mature cystic teratomas: morphologic and immunohistochemical analysis identifies a subset of potential teratomatous
origin that shares features of lower gastrointestinal tract mucinous tumors more commonly encountered as secondary tumors in the ovary.
Computed tomography showed a large lobulated solid cystic 5x9 cm mass in right adnexa which was well defined, bosselated and had hyper vascular enhancement with fatty component and calcific foci suggestive of a teratomatous
No immature or teratomatous
component could be identified and thus diagnosed as choristoma of tongue (Fig.
Young et al (10) have identified epidermoid cysts, some in concert with small Walthard rests, but in the absence of any other teratomatous
Yolk sac tumour often occurs as malignant foci within a large tumour and biopsy may reveal only teratoma, however elevated AFP may reveal its presence and vice versa biopsy may only show yolk sac component and teratomatous
component may not be samples as in our case initially.
Although this proposition is felt by many to be less likely, as the typical age of presentation for these tumours is beyond that normally seen for teratomas, these tumours lack other potential teratomatous
components and do not display intratubular germ cell neoplasia.
Levy, "Dermoid, epidermoid and teratomatous
cysts of the tongue and the floor of the mouth," Journal of Oral Surgery, vol.