Ultrastructure of Dural Lesions Produced in Lumbar Punctures

Fig. 41.1

Dura-arachnoid lesion produced by 22G Quincke needle. External surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×100; b, ×80 (From Reina et al. [9]; with permission)

Fig. 41.2

Fig. 41.3

Dura-arachnoid lesion produced by 22G Quincke needle. Internal surface of human dural sac (arachnoid layer). Scanning electron microscopy. Magnification: a, ×100; b, ×100

Fig. 41.4

Dura-arachnoid lesion produced by 22G Quincke needle. Internal surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×100; b, ×100. (With permission (a from Reina et al. [10]; with permission. b from Reina et al. [3]; with permission))

Fig. 41.5

Dura-arachnoid lesion produced by 25G Quincke needle. External surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×150; b, ×200 (From Reina et al. [9]; with permission)

Fig. 41.6

Dura-arachnoid lesion produced by 25G Quincke needle. Internal surface of human dural sac (arachnoid layer). Scanning electron microscopy. Magnification: a, ×200; b, ×200 (From Reina et al. [3]; with permission)

Fig. 41.7

Dura-arachnoid lesion produced by 25G Whitacre needle. External surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×200; b, ×200 (a from Reina et al. [6]; with permission. b from Reina et al. [3]; with permission)

Fig. 41.8

Dura-arachnoid lesion produced by 25G Whitacre needle. Internal surface of human dural sac (arachnoid layer). Scanning electron microscopy. Magnification: a, ×200; b, ×150 (a from Reina et al. [6]; with permission. b from Reina et al. [3]; with permission)

Fig. 41.9

Dura-arachnoid lesion produced by 25G Whitacre needle. Internal surface of human dural sac (arachnoid layer). Scanning electron microscopy. Magnification: a, ×100; b, ×200 (a from Reina et al. [6]; with permission)

Fig. 41.10

Dura-arachnoid lesion produced by 27G Whitacre needle. External surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×200; b, ×200

Fig. 41.11

Dura-arachnoid lesion produced by 27G Whitacre needle. External surface of human dural sac (external dural laminas). Scanning electron microscopy. Magnification: a, ×200; b, ×200 (From Reina et al. [9]; with permission)