Excision, incision, biopsy
Excision, incision, and biopsy may be difficult to interpret. They are organized according to the following general structure.
Excision
Organ excision. Any excisional act involving the organ; usually (organ)-ectomy, or similar, is a synonym. Organ excision , itself, does not specify whether it is complete or partial, nor does it specify what is excised.
For example,
23968004 |Excision of colon (procedure)| or one of the synonyms, Colectomy
Complete or total excision
Concepts may include complete or total to indicate complete removal or excision of the organ.
For example,
63016009 |Total resection of urinary bladder (procedure)| with the synonyms Complete cystectomy, Total excision of bladder, and etc
Partial excision
Concepts may include partial to indicate removal or excision of part of the organ. Specifying partial excision does not differentiate between a partial excision of or from the organ.
For example,
708929007 |Laparoscopic partial excision of kidney using robotic assistance (procedure)| or one of the synonyms, Partial nephrectomy, laparoscopic with robot assistance
Lesion or tissue
Concepts may indicate removal of a lesion or tissue; excision of a lesion or tissue from an organ may be complete or partial.
For example,
72106008 |Excision of lesion of liver (procedure)|
69031006 |Excision of breast tissue (procedure)|
Lesion Modelling
The word lesion can be used to refer to both structural and functional abnormalities. If a procedure refers to a lesion that is a structural abnormality, then model with a 405816004 |Procedure morphology (attribute)| of << 52988006 |Lesion (morphologic abnormality)|.
Excision(al) biopsy
Excisional biopsy of organ generally means that tissue or a lesion or suspected lesion is necessarily entirely excised, not the entire organ. It is a partial excision of (from) the organ. This is true even when small polyps are removed.
For example,
116237003 |Excisional biopsy of lesion of rectum by transanal approach (procedure)|
Incision
An organ incision is any incisional act involving the organ; usually (organ)-otomy, or similar, is a synonym
For example,
45558009 |Incision of lung (procedure)| or the synonym, pneumonotomy
Any incision procedure that does not necessarily involve division (as opposed to ordinarily does not involve division) remains primitive without an available negation operator
Incisional biopsy
Incisional biopsy of organ; incisional biopsy of lesion of organ; usually with open approach. Incisional biopsy of [organ] necessarily implies incision and removal of a lesion, and is by definition a partial excision, since the site is the organ, and an excision is done, but the entire lesion is not necessarily removed.
For example,
237378001 |Incisional biopsy of breast (procedure)|
Modeling Biopsies
Biopsies, like other removal procedures, may have two direct objects, the morphology and the site. It is permissible to use Procedure site - Direct (attribute) for biopsies, even if subtypes might have a direct object that is a morphology.
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