Editing Appendicitis (section)

== '''Appendiceal mucocele (on CT)''' ==

* Note that mucocoele is an     imaging finding, not a histologic finding any more
* This finding can occur due to     chronic obstruction and distension (due to continued mucin secretion),     without any neoplastic findings on histology. Normal epithelium with no     dysplasia.
* No known risk for     transformation to malignancy
* Risk factors for neoplasm on     CT:
** Larger lesion (diameter      >13mm)
** Isolated focal distal      dilation with normal appendix proximally
** Mural curvilinear      calcifications, especially eggshell in appearance
** Diameter >2cm
** Absence of peri-appendiceal      stranding
** Increase in wall thickness      is not associated with neoplasm
* What to do:
** If operation can be      performed laparoscopically and cancer doesn't involve the base of the      appendix, go ahead
** Ensure mesoappendix is      excised
** Evaluate all regions in the      abdomen
** Generous biopsy of one or      two peritoneal implants, if present
** If no dysplasia on      histology, simple resection is curative and no further follow-up is      required

[[Category:Colorectal]]
[[Category:Intern education]]