CHOROID PLEXUS TUMORS
\kˈɔːɹɔ͡ɪd plˈɛksəs tjˈuːməz], \kˈɔːɹɔɪd plˈɛksəs tjˈuːməz], \k_ˈɔː_ɹ_ɔɪ_d p_l_ˈɛ_k_s_ə_s t_j_ˈuː_m_ə_z]\
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Benign or malignant tumors which arise from the choroid plexus of the ventricles of the brain. Papillomas (see PAPILLOMA, CHOROID PLEXUS) and carcinomas are the most common histologic subtypes, and tend to seed throughout the ventricular and subarachnoid spaces. Clinical features include headaches, ataxia and alterations of consciousness, primarily resulting from associated HYDROCEPHALUS. (From Devita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2072; J Neurosurg 1998 Mar;88 (3):521-8)
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Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.