Sellar teratoma with melanotic progonoma

Melanotic progonoma as a component of ovarian teratoma

“…Our case bears considerable similarity to both MNTI primary in the cerebrum and the single previous example evolving in a teratoma, reported by Tobo et al 2 ,. 4 Advanced gangliocytic or glial differentiation, as part of the nonepithelial component of MNTI has also been recognized 1 ,.…”

“…The tumour most often affects the maxilla of very young children, but exceptional instances involving extracranial sites, as well as adults are on record 1 . Although a maldevelopmental process is likely to play a role in its pathogenesis, MNTI has been noticed only once to occur in the genuinely dysontogenetic context of an intracranial teratoma 2 …”

Mature Teratouna Arising From the Sella. Case Report.

“…24,25) Intrasellar mature teratoma has the potential to undergo ossification, teeth formation, melanotic progonoma, and malignant transformation. 5,[9][10][11][12]26) One case of a highly ossified endosuprasellar mature teratoma contained more than 150 teeth macroscopically identified during the operation. 12) Mature teratomas are benign and usually radioresistant.…”

Melanotic Neuroectodermal Tumor of the Skull and Meninges in Infancy

“…The explosive development of the dis- [25] 3y M PCF D 3w Rubinstein [19] 30y NA PCF NA Best [10] ly M pineal D 5w Sung el al. [36] 38y M PCF D 2m Stowens and Lin [ 1 ] 4m F 3rd V D 18m Hahn et al [26] 21 y M PCF A 9m McCloskcy et al [28] 30y F LT A 18m Boesel et al [23] NA NA PCF NA Araoz and Moore [22] NA NA T NA Ishida et al [27] 1 ly NA PCF NA Shuangshoti [21] 6m M B stem D 2m Tobo et al [37] I4y M sellar NA Shuangshoti [5] 69y M PCF A 9m Russeger et al [31] NA NA NA NA Cohen et al [38] 17w NA pineal A 30m w = Weeks; m = months: y = years: M = male; F = female; PCF = posterior cranial fossa; B stem = brain stem: L = left; T = temporal: 3rd V = third ventricle; A = alive: D = death: NA = not available. …”

“…Actually, most of the 20 cases reported by Shuangshoti [5,21] and by Parizek et al [20] have histo logical features akin to or the same as melanotic medullo blastomas or ependymomas [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], Only a few [38] could be true MNTI on the basis of their histological fea tures. MNTI of the brain, if they exist, have a constantly dismal prognosis due to recurrences or metastasis.…”