Nov. 05, 2021
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(Left) A cross section of the spinal cord shows dense infiltration of the leptomeninges by metastatic carcinoma. (Hematoxylin-eosin; x8) (Right) Detail from the previous section showing direct invasion of tumor across the pia mater into the spinal parenchyma. (Hematoxylin-eosin; x52) (Contributed by Dr. Marc D Winkelman.)