Epidermoid Intramedullary Cyst: A Rare Case Report

Abstract

Epidermoid cysts are tumors that ocur in most parts of the body and are often treated by neurosurgeons, but intramedullary localizations of epidermoid cysts are very rare. The incidence in adults is lower than 1% and in children lower than 3%.We report a case of a 27-year-old patient presenting with thoracic spinal cord compression syndrome (T11-12). The magnetic resonance imaging (MRI) showed an intramedullary cystic mass. It demonstrated low signal intensity on T1-weighted sequence and high signal intensity on T2-weighted sequences, with minimal peripheral enhancement following intravenous administration of gadoteric acid. After surgical removal of the tumor, the pathology confirmed the radiological diagnosis of spinal epidermoid cyst. MRI reduces the delay in diagnosis of spinal cord tumors but should be guided by clinical judgment.

Foramen of Monro choroid plexus papilloma: An extremely rare location managed by endoscopic resection

“…Choroid plexus tumors (CPT) are considered rare tumors that originate from the choroid plexus epithelium. They were classified into three grades according to the newest World Health Organization (WHO); choroid plexus papilloma (CPP) (WHO grade 1), atypical choroid plexus papilloma (WHO grade 2), and choroid plexus carcinoma (CPC) (WHO grade 3), based on their mitotic activity [1 , 6] .…”

“…Choroid plexus papilloma comprises less than 1% of brain tumors and even 0.5% percent of brain tumors in adults [1 , 3] . It is more common in males and can present at any age, with a higher predilection towards children [1 , 2] .…”

“…Choroid plexus papilloma (CPP) is a rare brain tumor that is more commonly encountered in children and infants [1] . It composes around 4%-6% of brain tumors in pediatric populations in comparison to only 0.5% in adults [1] .…”

“…Choroid plexus papilloma (CPP) is a rare brain tumor that is more commonly encountered in children and infants [1] . It composes around 4%-6% of brain tumors in pediatric populations in comparison to only 0.5% in adults [1] . Furthermore, it was noted that the tumor predilects toward certain locations based on age, as it is more common in lateral ventricles in children, meanwhile, in adults, it is more common to be found in the fourth ventricle [1 , 2] .…”

“…The symptoms of increased intracranial pressure and hydrocephalus remain the most frequent presentation in most cases [1] . However, other neurological symptoms and focal neurological deficits can be the first manifestation, or they can be found incidentally [2 , 3] .…”