There is a group of cases with the clinical picture and course of spinal cord tumor in which, at operation, no neoplasm of the spinal cord or other pathologic change except adhesions of the arachnoid to the spinal pia and to the dura is to be found. These adhesions vary from rather fine discrete bands to adherent processes completely surrounding the spinal cord and producing complete obstruction of the subarachnoid spaces. In both varieties of adhesions marked disturbances in spinal cord function have been found, and the evolution of the clinical signs has been identical, in most respects, with that of true spinal cord tumors.
Cases of spinal arachnoid adhesions were little recognized in this clinic before the routine use of the finer cerebrospinal fluid manometric tests, which are now used in all suspected spinal cord neoplasms. It is significant that in the past three years I have encountered ten
BYRON STOOKEY. ADHESIVE SPINAL ARACHNOIDITIS SIMULATING SPINAL CORD TUMOR. Arch NeurPsych. 1927;17(2):151–178. doi:10.1001/archneurpsyc.1927.02200320003001