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Cystic meningiomas

Report of seven cases

Giuseppe Parisi, Rosario Tropea, Salvatore Giuffrida, Maria Lombardo, and Francesco Giuffrè

C ysts are frequently associated with glial or metastatic tumors. It is uncommon, however, to find cysts connected with meningiomas. In his pioneering account, Penfield 20 wrote that “only in very rare cases is there cyst formation” in meningiomas. Cushing and Eisenhardt 5 reported only eight cystic tumors in their series of 313 meningiomas. A further review of the literature shows the rarity of this association; in fact, few other authors have reported cases of cystic meningiomas ( Table

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Roukoz Chamoun, Khaled M. Krisht, and William T. Couldwell

suspected brain tumors. In another report involving 3672 people aged 65 years and older who were enrolled in a population-based study of cardiovascular and cerebrovascular disease, 64 (1.74%) clinically relevant abnormalities were found, and 19 of them were meningiomas (prevalence 0.52%). 35 In a more recent prospective population-based study in the Netherlands involving 2000 people who were 45 years of age or older, the prevalence of benign brain tumors was 1.6%, with meningiomas as the most common (0

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A. Wahab Ibrahim, Mohamed B. Satti, and E. Mustafa Ibrahim

S pinal meningiomas are encountered mostly in the thoracic region in middle-aged women, 1, 11 but occur elsewhere along the spinal canal. 2, 10 They usually present clinically with signs of cord or root compression and are intradural extramedullary neoplasms; 3 however, extradural meningiomas have been described, 4, 5 and all reported cases were reviewed recently. 2 With the exception of one case, 6 all tumors were contained within the spinal canal. We report a case of an ectopic

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Maurizio Domenicucci, Antonio Santoro, Daniel H. D'Osvaldo, Roberto Delfini, Gianpaolo P. Cantore, and Beniamino Guidetti

T he neurosurgical frequency of multiple intracranial meningiomas is low, although it has risen since the introduction of computerized tomography (CT). 18, 23 In 1938, Cushing and Eisenhardt 8 defined this entity as “something more than one meningioma and less than a diffusion of them.” Even now, however, cases reported as multiple meningiomas include a variety of conditions from which these lesions must be differentiated. These include meningioma recurrences, multiple meningiomas

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Ossama Al-Mefty

C ushing and Eisenhardt 17 clearly distinguished meningiomas of the anterior clinoid as “those of the deep or clinoidal third,” and concurrently, Vincent referred to them as “sphenocavernous meningiomas.” 18 Despite this early recognition, these meningiomas are frequently grouped with suprasellar meningiomas or with meningiomas of the sphenoid ridge, 6, 11, 23, 24, 41, 51 masking their ominous course. They are second only to clival meningiomas in surgical mortality and morbidity rates

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Jeffrey L. Karasick and Sean F. Mullan

H istorically , primary intracranial meningiomas rarely metastasize extracranially. We have recently encountered two such cases with histologically verified distant metastases, rendered more unusual by the clinical absence of pulmonary involvement. Fifty-nine additional cases of meningeal tumor with extracranial metasases are recorded in the literature from 1880 to the present; of these only 54 were acceptable as to pathological documentation of intracranial tumor and metastases. Case

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Douglas C. Miller, Robert G. Ojemann, Karl H. Proppe, Barry D. McGinnis, and Hermes C. Grillo

and lymph-node deposits arising from these uterine tumors are histologically and biologically benign. In rare cases, it appears that certain intracranial meningiomas may exhibit similar behavior. 8, 10, 11 We report a case of a parietal parasagittal meningioma which, at the time of presentation, was found to have spread to the right lung. There were no histopathological features of malignancy in either the primary or secondary tumor, and the meningioma was apparently biologically benign

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Menashe Zaaroor, Bernardo Borovich, Lucyna Bassan, Yaffa Doron, and Jan Gruszkiewicz

M eningioma is one of the commonest primary tumors of the central nervous system. Only very occasionally have extracranial or extravertebral meningiomas been reported. 1–5 They can be secondary to extension of an intracranial or intraspinal tumor or they can be primary. The most common sites of these primary extracranial or extraspinal meningiomas are the orbit, the vicinity of the ear, and the skin. Meningiomas of the skin are the rarest and have been reported in the scalp, the forehead

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Hidefuku Gi, Seiichi Nagao, Hideyuki Yoshizumi, Tatsuya Nishioka, Junji Uno, Tadashi Shingu, and Yuzo Fujita

N umerous histological variations have been found in meningiomas, a particularly interesting one being infiltration by plasma cells, lymphocytes, and/or histiocytes. Recent immunocytochemical examinations have revealed the relationship between meningioma and immunoglobulins (Ig's) but it is rare for a patient with meningioma to show a high serum Ig level. We report a case of meningioma with raised serum IgG and IgA in which histochemical studies showed IgG and IgA in infiltrating plasma

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Deon Louw, Garnette Sutherland, William Halliday, and John Kaufmann

differentiation between meningioma and schwannoma is usually straightforward; however, meningiomas are known to mimic other tumors 10–12 and may be confused with schwannoma. 10, 25 Certain ultrastructural features in the cases reported as meningioma were considered compatible with those of schwannoma. Confirmatory immunohistochemistry has been performed in only three previous cases. 3, 24, 27 The advent of recent technological advances has allowed us to examine immunohistochemically two cerebral tumors