[ XXXX : a histopathology observation].

@entity1 @entity6515 @entity75 @entity4 @entity6693 @entity281 @entity292
OBJECTIVE: To investigate the pathology characteristics of @entity6515 with @entity281 , in order to reduce the recurrence rate after surgery and improve operative technique. METHOD: Twenty-five @entity1 diagnosed as @entity6515 with @entity281 were analyzed. There were 14 @entity1 in @entity281 history group, 9 in infective stage group, and 2 in recurrence group respectively. The whole piece of @entity292 and scar tissue was completely excised during operation. The specimens were observed by naked eye and serial tissue sections were analyzed. RESULT: (1) Macroscopically, in @entity281 history group, initial morphology can be maintained near the @entity292 orifice, but the distal tissue was dark red scar tissue. In infective stage group, the distal tissue of the specimens was granulation tissue and cicatricial tissue. The granulation tissue was crisp and bright red. In recurrence group, @entity75 with severe @entity4 was observed, with a classical dumb-bell appearence. (2) Microscopically, in @entity281 history group and recurrence group, we can see that the distal @entity292 tissue was discontinuous and was separated by scar tissue. In infective stage group, we can find neo-angiogenesis and infiltration of plasma cells, lymphocytes, neutrophil between interrupted @entity292 tissues. (3) All @entity1 were followed up for 6-12 month, without recurrence. CONCLUSION: The @entity292 tissue of @entity6515 with @entity281 was divided by the scar tissue, and they did not communicate with each other. Complete delineation of @entity292 is hardly achieved by @entity6693 staining. Radical excision of the @entity292 and scar tissue may help to avoid leaving viable squamous epithelial remnants and reduce the recurrence rate.
