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Meningiomas as anatomo-pathological entities were first described in the sixteenth century, but it was Harvey Cusching who in 1922 proposed to identify them with the term "meningioma". They are the most common intracranial tumors, occur between middle and late age and prefer female sex. The symptoms depend on their position with respect to the brain regions. These are mostly benign neoplasms, but there are atypical and even malignant forms. Plaque meningioma refers to a specific macroscopic aspect of the meningioma, due to diffuse dural involvement and usually with extracranial extension. We report here a case of plaque convex meningioma with typical grade I. Key Words: En plaque, Meningioma, WHO Meningioma.I meningiomi come entità anatomo-patologiche furono descritti per la prima volta nel XVI secolo, ma fu Harvey Cusching che nel 1922 propose di identificarli con il termine di “meningioma”. Sono i tumori intracranici più comuni, si manifestano tra la mezza e la tarda età e prediligono il sesso femminile. La sintomatologia è funzione della loro posizione rispetto alle regioni dell’encefalo. Si tratta per lo più di neoplasie benigne, ma esistono forme atipiche ed anche maligne. Il meningioma “a placca” si riferisce a un aspetto macroscopico specifico del meningioma, per coinvolgimento durale diffuso e solitamente con estensione extracranica. Riportiamo qui un caso di meningioma convessità en placca con tipico grado I.

In this work the Authors report their experience on the treatment of a case of cavernous venous sinus thrombosis. The diagnosis is clinical and neuroradiological, CT, MRN, cerebral angiography and orbital venography have aided in establishing the diagnosis during life. Very interesting is the therapeutic approach.

In the present review we report a case of a 53-year-old woman affected with a cyst solitary cerebral hemispheric lesion causing acute generalized seizure. Clinical and neuroradiologic diagnosis of cystic astrocytoma was performed and the patient was operated. Microscopic analysis of the surgical specimen led to a diagnosis of parasitic infection, consistent with neurocysticercosis (NCC). NCC is the most frequent parasitosis of the central nervous system (CNS) in the world. The infective agent is taenia solium larvae. It is endemic in Latin America, Africa and some Asiatic countries, such as India. In Europe, many cases have been reported in Portugal, Spain, Poland and Romania. In Italy NCC is a rare disease. In recent years no cases have been described, but with high rate of immigration from endemic areas (Africa and East Europe) this parasitosis will be found in our country too, particularly affecting communities where hygienic conditions are poor. In conclusion we briefly analyze the relationship between pathogenesis of this parasitosis and its clinical symptoms.

In the present paper the authors report their experience with the surgical treatment of internal hemorrhagic pachymeningiosis (PEI). PEI is an uncommon disease and its treatment is not well defined