Table 3.
Histological diagnosis by the site of tissue sampling
| Pineal Lesion (N = 50*) | Neurohypophyseal Lesion (N = 36*) | Distant Site (N = 9) | ||||
|---|---|---|---|---|---|---|
| Number of Patients | (%) | Number of Patients | (%) | Number of Patients | (%) | |
| Pure germinoma | 46 | 92.0 | 30 | 83.3 | 8 | 88.9 |
| germinoma with STGC | 1 | 2.0 | 2 | 5.6 | 0 | 0.0 |
| Germinoma and mature teratoma | 2 | 4.0 | 1 | 2.8 | 0 | 0.0 |
| IMT | 0 | 0.0 | 1 | 2.8 | 0 | 0.0 |
| Germinoma and IMT and EC | 0 | 0.0 | 0 | 0 | 1 | 11.1 |
| EC | 1 | 2.0 | 0 | 0 | 0 | 0.0 |
| Granulomatous inflammation | 0 | 0.0 | 2 | 5.6 | 0 | 0.0 |
Abbreviations: STGC = syncytiotrophoblastic giant cells; IMT = immature teratoma; EC = embryonal carcinoma; *simultaneous tissue sampling of pineal and neurohypophyseal lesion in 6 cases.