1. The plexiform layers of the retina.

2. The inner plexiform layer was appeared during 13th week.

3. Methods We analysed 4 cases if plexiform neurofibromas in the head and neck by reviewing related literature.

4. The cerebral cortex include three layers: outer plexiform layer, cell layer and inner plexiform layer. There are some small cells scatter in outer and inner plexiform layer.

5. How common are they? Plexiform neurofibromas occur in about 15 percent of people with NF1.

6. Results Plexiform bone and osteon banding were mostly observed in nonhuman bones, whereas rarely in human bones.

7. When do they show up? Plexiform neurofibromas can appear at any age, but they usually begin to show up in late childhood or early adolescence.

8. RESULTS Neurofibroma normally grows in two ways:along nerve cord and in plexiform.

9. Results Curative rates were91.74%for cavernous hemangioma, 97.36%for strawberry hemangioma, 95.60%for mixed hemangioma, 79.07%for plexiform hemangioma, and58.97%for port-wine nevus.

10. The expression of VIP exists on photoreceptor- outer segment, inner nuclear layer and inner plexiform layer of retina and choroids, and weak expression exists on ganglion cell and nerve fiber layer.

11. Results show that GABA-IR structure of both groups was observed in amacrine cells, inner plexiform layer, ganglion cells and nerve filament layer.

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12. In the retina of RCS rats, GABA-like immunoreactivity was observed in the inner plexiform layer, few GABA-ergic amacrine cells and the ganglion cell layer.

13. But there is no significant difference on recurrence rate between follicular type and plexiform type among classic type ameloblastoma.

14. Results: GABA-IR structure of both groups was observed in amacrine cells, inner plexiform layer, ganglion cells and nerve filament layer.

15. Objective To explore the applicability of the histological features of plexiform bone and osteon banding to species identification.

16. But as he grew, the condition became so aggressive and severe that he developed a rare large tumor called a plexiform neurofibroma , visible from the back of his shoulder and collarbone.

17. Results:The patients with pelvic varicosis showed network like, non echo areas and plexiform or color ball shaped blood flow signals which were not found in control group.

18. Objective To evaluate the efficacy of DSA-aided superselective embolization in hemostasis of oral and maxillofacial plexiform hemangioma.

19. Results:Among the4cases of NF1,2had defect of the great wings of the sphenoid, bilateral middle cerebellar peduncle gliomas and plexiform neurofibroma respectively.

20. Proximal cords of entrance cord was terminal crest and pectinate muscle, and distal one was plexiform cords.