medulloblastoma Path.
(mɪˌdʌləʊblæˈstəʊmə)
Pl. -blastomas, -blastomata.
[f. medulla + -o + blasto- + -oma.]
A malignant tumour of the central nervous system that usually occurs in the cerebellum of children.
| 1925 Bailey & Cushing in Arch. Neurol. & Psychiatry (Chicago) XIV. 193 We shall adopt for our cases the term Medulloblastoma as appropriate to the particular tumors to which we independently wish to call attention. 1926 ― Classification Tumors of Glioma Group 118 Medullo⁓blastomas..are rapidly growing, soft, malignant tumors which not infrequently, when they reach the leptomeninges, disseminate themselves through the subarachnoid spaces. 1974 Passmore & Robson Compan. Med. Stud. III. xxxiv. 75/1 Medulloblastomata usually arise from the inferior vermis and involve the flocculus and nodule. Hence the presentation is often difficulty in walking, truncal ataxia and a tendency to sudden falls. |