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  Indian J Med Microbiol
 

Figure 3: Artistic representation of the three classes described by Neidre and Macnab: Type 1A, conjoined nerve root originating from the rostral nerve root itself rather than from the thecal sac; Type 1B, conjoined nerve root arising from the thecal sac near the caudal nerve root; Type 2A, two nerve roots exiting from the same neural foramen, leaving one unoccupied neural foramen; Type 2B, two nerve roots exiting from one neural foramen with all the other foramina occupied; and Type 3, two adjacent nerve roots with an anastomosis between them

Figure 3: Artistic representation of the three classes described by Neidre and Macnab: Type 1A, conjoined nerve root originating from the rostral nerve root itself rather than from the thecal sac; Type 1B, conjoined nerve root arising from the thecal sac near the caudal nerve root; Type 2A, two nerve roots exiting from the same neural foramen, leaving one unoccupied neural foramen; Type 2B, two nerve roots exiting from one neural foramen with all the other foramina occupied; and Type 3, two adjacent nerve roots with an anastomosis between them