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  • Title: [Intracranial benign chondroblastoma. A case report and review of the literature].
    Author: Miyake H, Hashi K, Nin K, Shimotake K, Kobayashi A, Handa Y, Hamada Y, Abe K, Miyagawa H.
    Journal: No Shinkei Geka; 1984 Mar; 12(3 Suppl):419-25. PubMed ID: 6462352.
    Abstract:
    A case of benign chondroblastoma extending from the nasal cavity to the frontal region, was reported. A 1-year and 9-month old girl was admitted to our hospital in April 1981 because of generalized convulsion. On admission, she was intact neurologically and had It. nasal obstruction and It. eye discharge. Her laboratory examinations, including serum electrolytes and A1-P, were all in normal range. Plain skull X-P showed marked calcification from midfrontal region to the nasal cavity, and destruction of the frontal base especially in It. side. Plain CT showed isodensity mass with spotty calcification in the nasal cavity and marked high density mass in the frontal region. By contrast enhancement, nasal mass was markedly enhanced and new enhanced mass appeared around the intracranial calcification. Lt. ext. CAG showed the enlarged middle meningeal artery which is the feeder of the tumor, fine tumor vessels and slight tumor stain. Lt. int. CAG only showed the mass effect. After three-stage operation of bifrontal craniotomy, sublabial transnasal approach and rhinotomy, all the tumor was removed and she was discharged with no neurological deficits. The tumor was well demarcated and consisted from solid, cystic and calcified region. The solid region was grayish and easy-hemorrhagic. Histological examination revealed characteristic features of benign chondroblastoma, such as diffuse proliferation of polygonal or round cells, foci of chondroid matrices, scattered polynuclear giant cells and some mitosis.
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