Synonyms:

Endodermal cyst,

Diagnosis:

Usually by MRI. Pathology is confirmatory.

Findings on investigations:

MRI:

• Anterior to the cord
• Associated with vertebral abnormalities lower than the lesion. Associated with respiratory tract abnormalities if bronchogenic cyst and GIT abnormalities if neuroenteric.

Pathology:

Histology:

• Well differentiated columnar epithelium, ciliated or nonciliated +/-mucus +/-goblet cells. PAS positive membrane
• Rarely more developed features occur intestine-like mucosa (Neuroenteric), cartilage (Bronchogenic)

Immunohistochemistry: CEA positive, EMA positive