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Primary spinal lymphoma carries a low incidence and poor prognosis. The most reliable diagnostic signs have been segmental swelling of the cord on myelography and increased cellularity of cerebrospinal fluid. Biopsies of spinal tumors or their cerebral extensions showed lymphoma of the non-Hodgkin type only. Peroxidase-antiperoxidase staining for light(More)
The effect of trypsin digestion on the immunoperoxidase-PAP staining of paraffin sections from normal and abnormal tissue was studied. Trypsin treatment reduced background staining considerably, but enhanced specific staining. Results were, therefore, much easier to read. Possible reasons for this result are discussed.
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