To describe the imaging characteristics of cystic lesions ofbrain according to their most frequent location. To describe the most frequent age of presentation of the cystic lesions of the brain. To propose a diagnostic imaging algorithm for cerebral cystic lesions.

Cerebral cystic lesions are observed with high frequency in clinical practice, therefore the radiologist must know them and keep in mind a diagnostic algorithm which will allowan accurate diagnosis. A location-based approach is a very important topic in establishing an appropriatedifferential diagnosis. Some locations are practically pathognomonic for certain diseases, while others are suggestive but not specific (1).

Systematic research of the literature was carried out and compare with the databaseof our institution; the most representative cases were selected and organized in a diagnostic algorithm ( Table 1 ). This algorithm is based on the classification proposed by Osborn and Preece in the article called: “Intracranial cyst: Radiologic – Pathologic correlation and imaging approach” (1) and in the ECR educational exhibit: “Differential diagnosis of intracranial cystic lesions” with the DOI: 10.1594/ecr2015/C-0215. We focus in supratentorial and benign lesions although some tumoral lesions will...

Complete knowledge of cerebral cystic lesions as well as having an organized diagnostic algorithm that takes into account relevant aspects such as the characteristics of the lesion, its location, the age of the patient, among others, is important to make an accurate diagnosis and to propose differentialdiagnoses.

Fundación Universitaria Sanitas Bogotá Colombia

1. Osborn AG & Preece MT. Intracranial cyst: Radiologic-pathologic correlation and imaging approach. Radiology 239.3 (2006) 650 - 664. 2.Pu Y, Mahankali S, Hou J et-al. High prevalence of pineal cysts in healthy adults demonstrated by high-resolution, noncontrast brain MR imaging. AJNR Am J Neuroradiol 28.9 (2007)1706-1709. 3.Mehta MP, Chang SM, Guha A et-al. Principles and Practice of Neuro-Oncology, A Multidisciplinary Approach. Demos Medical. (2010) ISBN:1933864788. 4.Osborn AG. Rathke cleft cyst. In: Diagnostic imaging: brain. Salt Lake City, Utah: Amirsys, 2004; II-2-16. 5.Swearingen B, Biller...