2015, Number 2
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Arch Neurocien 2015; 20 (2)
Primitive cerebral melanoma
Vargas-Olguín E, Rejón-Pérez JD, Alcántara-Gómez LA, Uribe-Olalde JS, Flores-Vázquez M, Robledo-Moreno E, Reyes-Velasco E
Language: Spanish
References: 12
Page: 161-165
PDF size: 392.33 Kb.
ABSTRACT
Statistically, intracranial malignant melanoma in the population is approximately 0.005 cases / 100 000, with a
prevalence towards the male population. Principles have been described to the approach for diagnosis and surgical
oncologic treatments. We present a case report of a man 39-year-old, with evolution characterized by headache,
lateralization gait, dysmetria, dysdiadochokinesia, truncal ataxia and Romberg. Starting the diagnostic protocol is
identified by MRI the presence of a lesion in the right posterior fossa, with significant edema. That is why it is
scheduled for surgical management, achieving total resection of the lesion and subsequent report by the Clinical
Pathology Service as melanoma. Immunohistochemistry tests being positive S100 and HMB 45 in the extension
studies for ophthalmology, dermatology and gastroenterology with conducting Panendoscopy was not possible to
find another source of tumor growth. The study of positron emission tomography showed no positivity across the
previously known save intracranial growth.
Conclusion: patterns of diagnosis of melanoma of the central nervous
system make it essential to thoroughly investigate possible sites of origin and rule out metastatic lesions; regarding
the management, consider total ablation wherever possible and the use of aggregate cancer therapy.
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