RESUMEN
In this report, the patient was pre-diagnosed as meningioma before surgery, which turned out to be meningeal melanocytoma. Hence, we will discuss the interpretation of imaging and neurological statuses that may help avoid this problem. A 45-year-old man had increasing pain around the neck 14 months prior to admission. His cervical spine MR imaging revealed a space-occupying, contrast-enhancing mass within the dura at the level of C1. The neurologic examination revealed that the patient had left-sided lower extremity weakness of 4+, decreased sensation on the right side, and hyperreflexia in both legs. Department of Neuroradiology interpreted CT and MR imaging as meningiom. The patient underwent decompression and removal of the mass. We confirmed diagnosis as meningeal melanocytoma through pathologic findings. Afterwards, we reviewed the patient's imaging work-up, which showed typical findings of meningeal melanocytoma. However, it was mistaken as meningioma, since the disease is rare.
Asunto(s)
Duramadre/diagnóstico por imagen , Melanoma/diagnóstico por imagen , Neoplasias Meníngeas/diagnóstico por imagen , Meningioma/diagnóstico por imagen , Vértebras Cervicales , Diagnóstico Diferencial , Duramadre/patología , Humanos , Imagen por Resonancia Magnética , Masculino , Melanoma/patología , Neoplasias Meníngeas/patología , Persona de Mediana EdadRESUMEN
Enchondroma is a type of benign cartilaginous bone tumor. Enchondroma of the spine is very rare. There are only a few cases of enchondromas located in the lamina of the cervical spine have been reported. Therefore, we report a case of enchondroma in the cervical spine. A 24-year-old female patient presented with a history of neck pain, restriction of neck movement, pain and numbness along the right scapula, and weakness accompanied by wasting of the right hand. Presumptive diagnoses included bony tumors such as an aneurysmal bone cyst or a giant cell tumor. Radiologic examinations revealed a round tumor in the right lamina of C4 with extracortical extension and foramen of C4-5. C4 right hemilaminectomy and facetectomy were performed with near complete removal of the tumor. On histological examination, the tumor was confirmed to be an enchondroma. At the 6-month follow-up, a computed tomography scan showed no recurrence with good alignment.