Fibrous Obliteration



Fibrous Obliteration


Scott R. Owens, MD









Gross pathology photograph shows an appendix with fibrous obliteration of the tip image, which gives a narrowed appearance due to a mucinous cystic neoplasm of the more proximal lumen image.






Hematoxylin & eosin shows a cross section of an appendix with fibrous obliteration. Note the absence of normal appendiceal lymphoid tissue. Submucosal fat and vessels image are retained.


TERMINOLOGY



Synonyms



  • Distal fibrous occlusion



ETIOLOGY/PATHOGENESIS


Idiopathic



  • Possibly proliferative in origin


  • Many associated with neural proliferations (neuromas)



    • Uncertain whether this causes fibrosis or results from it


    • Mast cells may be involved

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Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Fibrous Obliteration
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