January 10, 2022 Case of the Week

60s female, weakness lower extremities, saddle anesthesia, urinary retention

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Answer: Enterogenous cyst
•CT: multiloculated intradural cyst, compressing spinal cord

•FNA: cyst contents, ciliated cells with scant cytoplasm, histiocytes & proteinaceous debris
•Histo: cystic lesion w/ ciliated columnar epithelium lining (w/ mucin vacuoles). IHC: POSITIVE: CEA, CKAE1/3. NEGATIVE: GFAP, S100 (r/o ependymal cyst).