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  Indian J Med Microbiol
 

Figure 1: (a) Endoscopic view of the left nasal cavity showing thick black pigmented patches in the lumen of the sac around the common canaliculus with probe in situ. (b) Endoscopic view of the right nasal cavity of the same patient showing diffuse black pigmentation of the lacrimal sac lumen with probe in situ.(c and d) Microphotograph of the same patient showing abundant pigmentation into the cytoplasm of the fibrous tissue and stroma

Figure 1: (a) Endoscopic view of the left nasal cavity showing thick black pigmented patches in the lumen of the sac around the common canaliculus with probe <i>in situ</i>. (b) Endoscopic view of the right nasal cavity of the same patient showing diffuse black pigmentation of the lacrimal sac lumen with probe in situ.(c and d) Microphotograph of the same patient showing abundant pigmentation into the cytoplasm of the fibrous tissue and stroma