PMID- 2569683 OWN - NLM STAT- MEDLINE DCOM- 19890921 LR - 20190919 IS - 0161-6412 (Print) IS - 0161-6412 (Linking) VI - 11 IP - 2 DP - 1989 Jun TI - So-called intracranial germ cell tumours: personal experiences and a theory of their pathogenesis. PG - 118-26 AB - We investigated 110 cases of intracranial germ cell tumours (up to the end of 1986), 56% of which showed monotypic histological patterns and 44% were shown to be mixed tumours. All these cases underwent surgery followed by radiation and/or chemotherapy. All cases of choriocarcinoma and embryonal carcinoma died within 2 yr: cases of endodermal sinus tumour also showed poor results (4 yr survival rate was 12.5%). Mature teratoma had a 5 yr survival rate (5YSR) and a 10 yr survival rate (10YSR) of 78.3% each: immature teratoma showed a 5YSR of 44.9%. Two-cell pattern tumours (PTC) showed a 5YSR of 85.8% and a 10YSR of 82.4%. They (PTC) can be divided into two groups (i) germinoma and (ii) pinealoma of pineal parenchyma origin (pineocytoma with lymphocytic infiltration) on the basis of the difference in the tumour cell-stroma relationship and also placental alkaline phosphatase stain. In the pineal region, 70% of PTC belonged to the category of pinealoma and in the suprasellar region, 92% of PTC were germinoma. Germinoma showed a 5YSR of 91.4% and a 10YSR of 91.4%, whereas those of the pinealoma were 78.2% and 68.4% respectively. This suggests that the biological characteristics of germinoma and pinealoma may be different. All these results may bring into question the validity of the germ cell theory, since germinoma, which should be the most undifferentiated according to the theory, was the most benign and choriocarcinoma and endodermal sinus tumour, which should be the most differentiated, were the most malignant in the follow-up study.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Sano, K AU - Sano K AD - Department of Neurosurgery, University of Tokyo, Japan. FAU - Matsutani, M AU - Matsutani M FAU - Seto, T AU - Seto T LA - eng PT - Journal Article PT - Review PL - England TA - Neurol Res JT - Neurological research JID - 7905298 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Brain Neoplasms/etiology/*pathology MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Infant MH - Infant, Newborn MH - Male MH - Middle Aged MH - Neoplasms, Germ Cell and Embryonal/etiology/*pathology RF - 39 EDAT- 1989/06/01 00:00 MHDA- 1989/06/01 00:01 CRDT- 1989/06/01 00:00 PHST- 1989/06/01 00:00 [pubmed] PHST- 1989/06/01 00:01 [medline] PHST- 1989/06/01 00:00 [entrez] AID - 10.1080/01616412.1989.11739874 [doi] PST - ppublish SO - Neurol Res. 1989 Jun;11(2):118-26. doi: 10.1080/01616412.1989.11739874.