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. Author manuscript; available in PMC: 2007 Apr 17.
Published in final edited form as: Otolaryngol Head Neck Surg. 2007 Apr;136(4):589–596. doi: 10.1016/j.otohns.2006.11.039

Figure 2.

Figure 2

Lower power H&E photographs illustrating the implanted (a) and contralateral control (b) cochleae of a rat 52 hours following middle ear inoculation of 3 x 104 CFU S. pneumoniae. This animal exhibited clinical and histological (CNS) evidence of meningitis. In this example there is severe labyrinthitis throughout the implanted ear (a) while the contralateral cochlea exhibits evidence of infection mainly localized to the scala tympani of the basal turn (b). Higher power micrograph of Gram stain of the OSL (c) and modiolus of the implanted cochlea (d), the modiolous (e) and the internal acoustic meatus (f) of the contralateral cochlea, illustrates the presence of bacteria (arrows). The approximate location of the higher power micrographs (c-f) are illustrated in (a) and (b). bn: bone. Scale bar: (a) & (b) 200 μm; (c-f) 10 μm.