Figure 3 : (a) A photomicrograph of a section in the nasal mucosa of the control group showing faint and
minimal collagen fibers in lamina propria (curved arrow). (b) A photomicrograph of a section in the nasal
polyp group IIb showing extensive accumulation of collagen fibers at the basal lamina and lamina propria
(curved arrow). (c) A photomicrograph of a section in the nasal polyp of group IIa showing accumulation of
collagen fibers at the basal lamina and lamina propria (curved arrow). (d) A photomicrograph of a section
in the nasal polyp group IIIb showing extensive accumulation of collagen fibers at the basal lamina and
lamina propria (curved arrow). (e) A photomicrograph of a section in the nasal polyp of group IIIa showing
minimal collagen fibers in the lamina propria [Masson’s trichrome, X 400].

Faruk et al.Journal of Histology & Histopathology  2014 1:2DOI : 10.7243/2055-091X-1-2