Alpha Boubacar Bah

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Decision-making criteria for optimal management of meningiomas in neurofibromatosis type 2 (NF2) patients is hampered by lack of robust data, particularly long-term natural history. Seventy-four NF2 patients harboring 287 cranial meningiomas followed up for a mean period of 110.2 months were studied retrospectively. The median number of meningiomas per(More)
A differential analysis framework of longitudinal FLAIR MRI volumes is proposed, based on non-linear gray value mapping, to quantify low-grade glioma growth. First, MRI volumes were mapped to a common range of gray levels via a midway-based histogram mapping. This mapping enabled direct comparison of MRI data and computation of difference maps. A(More)
Vito Martella, Alessandro Bianchi, Irene Bertoletti, Luca Pedrotti, Alessandro Gugiatti, Alessia Catella, Paolo Cordioli, Maria S. Lucente, Gabriella Elia, and Canio Buonavoglia Author affi liations: Università di Bari, Bari, Italy (V. Martella, M.S. Lucente, G. Elia, C. Buonavoglia); Istituto Zooprofi lattico Sperimentale della Lombardia e dell’Emilia(More)
BACKGROUND As new treatment modalities develop for the management of vestibular schwannomas (VS) in patients with neurofibromatosis type 2, it remains crucial to ascertain the natural history of the disease. OBJECTIVE To determine the relationship between hearing and tumor growth in patients undergoing conservative VS management. METHODS Patients(More)
Rodent-borne and other communicable diseases are of particular concern to vulnerable populations in complex humanitarian emergencies. We assessed the risk of Lassa fever to refugees and humanitarian aid workers in the Forest Region of Guinea by trapping rodents and testing them for the presence of Lassa virus infection. Our study provides a point prevalence(More)
Choroid plexus papillomas (CPP) are rare tumors of the central nervous system, usually occurring in the ventricular system. Apart from spinal drop metastases, CPPs are generally unique tumors. In this report, the authors present two exceptional adult cases involving multiple benign CPPs located in both intra- and extraventricular locations. The tumors were(More)
Sickle-cell disease is common among patients of Afro-Caribbean origin. Though it can precipitate neurological conditions, it only rarely causes neurosurgical problems, with very few reported cases. We describe the case of a 7-year-old girl with a background of sickle-cell disease (SCD) brought into an acute neurosurgical unit in extremis, signs of a raised(More)
Neurofibromatosis type 2 (NF2) is rare genetic disorder characterized by the development of multiple benign tumors of the nervous system. The majority of people with NF2 are diagnosed in the second or third decade of life with bilateral vestibular schwannomas. Among NF2 patients followed up in our NF2 clinic, seven patients have been diagnosed with NF2(More)
We describe an unusual case of malignant transformation of benign cranial nerves schwannoma eleven months after surgery and five months post radiotherapy. There has been no evidence of recurrence after 5 years follow-up. This early malignant transformation of a schwannoma involved cranial nerves IX, X, XI. Due to the uncommon presentation and the(More)
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