What is the probable diagnosis for a cyst in a child which is located at and associated with veebral defects -

Ans. is 'c' i.e., Neuroenteric cyst Veebral defect in association with intraspinal cyst suggest the diagnosis of neuroenteric cyst. Any cyst in mediastinum (posterior), abdomen or intraspinal, in association with veebral defect, suggest the diagnosis of neuroentric cyst. Neuroenteric cysts o These cysts result from incomplete separation of the notochord from the foregut which causes a persistant communication or adhesion between the ectoderm of spinal cord and endoderm of the foregut. The lining epithelium of these cysts are endodermal in origin. o These cysts are associated with ? i) Veebral anomalies (most common) Hemiveebrae, spina bifida, fused veebrae, absent veebrae, diastematomyelia. ii) Intestinal anomalies - Duplication, malrotation, imperforate anus. iii) Others Cloacal / bladder exstrophy, renal agenesis. o Most of the neuroenteric cysts are located ? i) Intraspinal MC at cervicothoracic region. ii) Mediastinum MC in Posterior mediastinum on right side.