necrotic lesion vs ulceration

[usr]

hello

whats the difference between necrotic lesion and ulceration ?

thanks

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[Perry Mason]

Ulceration only applies to surfaces lined by some kind of epithelium/lining, as I understand it

 

[usr]

Ulceration only applies to surfaces lined by some kind of epithelium/lining, as I understand it

isn;t there necrosis in ulcers?

maybe necrotic lesion is a more broad spectrum that includes ulcers? maybe its the pathology term and ulcer is the clinical term of a specific necrotic lesion (of mucous, of specific depth, etc)

thanks

 

[KCShaw]

Necrosis is basically a descriptive term. An ulcer is, yeah, basically an eroded/dead/dying defect in an epithelial surface. So, personally, if you use the term "ulcer" I pretty much know what you're talking about. If you use the term "necrotic lesion" you could be talking about anything with necrosis -- tumor related, infarct related, trauma related, etc., and to me generally means you're not really sure what you've got. Usually I reserve the term "necrosis" for use as a supplemental descriptor -- blah blah blah, with necrosis at the base, at the periphery, patchy throughout, etc.

 

[lipomas]

"necrotic" = dead tissue.
Ulcer = a defect in the surface lining.

Ulcers may or may not be accompanied by a lot of necrosis. Necrosis can be caused by surface ulcers or it may be caused by something else (like lack of blood supply). Ulcers can also arise secondary to necrosis because the surface may be the first thing that breaks down.