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 Indian J Med Microbiol  
 

Figure 17 (A-C):(A) An example of minimal residual squamous cell carcinoma of the oral tongue (hematoxylin and eosin (H and E), original magnification ×40). (B) A minute focus of residual squamous cell carcinoma, about 1mm wide and 1mm deep, with submucosal scar in the left lower corner (H and E, original magnification ×100). (C) The diagnostic biopsy was represented by five tissue fragments, all of which were smaller than 5mm in greatest dimension and had invasive squamous cell carcinoma. The exact measurement of the depth of invasion in this case is difficult given the fragmented nature of diagnostic biopsy. Only one biopsy fragment had normal squamous mucosa allowing measurement of the depth of invasion (H and E, original magnification ×40)

Figure 17 (A-C):(A) An example of minimal residual squamous cell carcinoma of the oral tongue (hematoxylin and eosin (H and E), original magnification ×40). (B) A minute focus of residual squamous cell carcinoma, about 1mm wide and 1mm deep, with submucosal scar in the left lower corner (H and E, original magnification ×100). (C) The diagnostic biopsy was represented by five tissue fragments, all of which were smaller than 5mm in greatest dimension and had invasive squamous cell carcinoma. The exact measurement of the depth of invasion in this case is difficult given the fragmented nature of diagnostic biopsy. Only one biopsy fragment had normal squamous mucosa allowing measurement of the depth of invasion (H and E, original magnification ×40)