Introduction: Solitary plasmacytoma is a malignant plasma cell tumor that is much rarer than multiple myeloma. The location in the vault of plasmacytoma is extremely rare. We report the case of a plasmacytoma of the cranial vault in a 53-year-old adult. Observation: A 53-year-old man consulted for tinnitus, left hypoacusis and trigeminal neuralgia of the left V2 and V3, which had been evolving for one year and was aggravated one month later by the appearance of a left temporal swelling with decreased visual acuity on the left. The MRI confirmed the existence of a lesional process of the temporal vault, in T1 iso signal, T2 hypersignal and flair, intensely and heterogeneously enhanced after injection of gadolinium. Anatomopathological study revealed a solitary temporal plasmacytoma, which was referred to oncology for further management. Discussion: Plasmacytoma is defined as an isolated malignant plasma cell tumor without clinical, biological, or radiological signs of Myeloma. Craniocerebral localization is rare and constitutes only 0.7% of all solitary plasmacytomas. Conclusion: Cranial plasmacytoma is a rare tumor that should be investigated for associated myeloma. Although the imaging appearance is not very specific, plasmacytoma should be considered in the differential diagnosis of any invasive lytic lesion of the cranial vault.

Introduction and importance: Glioblastoma is the most common primary malignant brain tumor in adults. It is enhanced by the abnormal proliferation of central nervous system cells called astrocytes. Microvascular endothelial proliferation is one of the criteria for a histological diagnosis. Hypervascular glioblastoma simulating an arteriovenous malformation is an involuntary manifestation and constitutes a rare entity. Case presentation: The authors report a case of a 44-year-old patient with no history followed. Symptoms began 6 months ago with the gradual onset of headaches without vomiting or seizures associated with a drop in normal visual acuity without neurological deficit. Cerebral imaging including cerebral angiography concluding with a right parieto-occipital cerebral process probably associated with an arteriovenous malformation. Clinical discussion: The management was surgical by biopsy after a right parieto-occipital bone flap concluding in glioblastoma. The patient needs chemotherapy and radiotherapy sessions with good clinical evolution. Conclusion: The coexistence of an arteriovenous malformation and glioblastoma remains an association whose pathophysiology still remains to be explored.

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Craniopharyngioma is a benign and rare intracranial tumor. In children, the clinic is characterized by the semiological, neurological, ophthalmological, and endocrine tripod. Medical imaging, represented by computed tomography (CT) and especially magnetic resonance imaging (MRI), has revolutionized the approach to the diagnosis of the latter. It has a slow evolution and likely to recur late. Thus, prolonged clinical-radiological follow-up is important to affirm a cure. The aim of this study is to highlight the epidemiological, clinical, paraclinical, therapeutic and evolutionary characteristics of craniopharyngiomas in children. This work consisted of a retrospective study of 11 pediatric cases of this tumor collected in the Neurosurgery Department of the IBN ROCHD University Hospital in Casablanca between January 2011 and January 2017. In this series, the child's craniopharyngiomas accounted for a rate of 45.8% of all these tumors. The average age of our patients was 9.09 years, with a sex ratio of 0.37. The average time to diagnose was 10 months. The picture was dominated by 100% visual disturbances, signs of intracranial hypertension at 63.63% and endocrine disorders at 36.36%. The lesion was intra and suprasellar seat in 91% of cases and suprasellar seat in 9%. Tumor size was less than 4cm in 54.53% of cases. Hydrocephalus is observed in 27.27% of cases. The fronto-pterrional modus operandi was the most used 72% of cases. Total exeresis was achieved in 9.1% of cases. Overall trends were favorable in 72% of cases without noting mortality. Tumor progressive recovery was observed in 9.1% of cases, but there were no recurrences. Given its location, the treatment of craniopharyngioma can lead to significant consequences in children affecting the long-term quality of life, hence the importance of post-operative follow-up and multidisciplinary management.