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Difference between revisions of "Diagnostic size cutoffs"
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[[Image:Lung carcinoid tumourlet - low mag.jpg|thumb|right|A [[carcinoid tumourlet]]; if it were larger it would be a [[carcinoid lung tumour]]. [[H&E stain]].]] | |||
'''Diagnostic size cutoffs''' are cutoffs which (in part) define a [[diagnosis]] and are seen in a number of places in [[pathology]]. They are usually somewhat arbitrary by their nature; however, they often make sense from a biologic big picture/management perspective. It doesn't make sense to treat [[ADH]] and low-grade [[DCIS]] the same, as their behaviour is different. | '''Diagnostic size cutoffs''' are cutoffs which (in part) define a [[diagnosis]] and are seen in a number of places in [[pathology]]. They are usually somewhat arbitrary by their nature; however, they often make sense from a biologic big picture/management perspective. It doesn't make sense to treat [[ADH]] and low-grade [[DCIS]] the same, as their behaviour is different. | ||
==Rationale== | |||
In [[pathology]], size matters. With other things equal, in the context of how tumours are currently evaluated, big tumours usually do worse than small tumours. | In [[pathology]], size matters. With other things equal, in the context of how tumours are currently evaluated, big tumours usually do worse than small tumours. | ||
==A table of diagnostic size cutoffs== | |||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
!Smaller lesion (precursor) | !Smaller lesion (precursor) | ||
| Line 10: | Line 13: | ||
|- | |- | ||
|[[Papillary adenoma of the kidney]] | |[[Papillary adenoma of the kidney]] | ||
|<= | |<=1.5 cm<ref name=pmid26935559>{{Cite journal | last1 = Moch | first1 = H. | last2 = Cubilla | first2 = AL. | last3 = Humphrey | first3 = PA. | last4 = Reuter | first4 = VE. | last5 = Ulbright | first5 = TM. | title = The 2016 WHO Classification of Tumours of the Urinary System and Male Genital Organs-Part A: Renal, Penile, and Testicular Tumours. | journal = Eur Urol | volume = | issue = | pages = | month = Feb | year = 2016 | doi = 10.1016/j.eururo.2016.02.029 | PMID = 26935559 }}</ref> | ||
|[[Papillary renal cell carcinoma]] | |[[Papillary renal cell carcinoma]] | ||
| - | | must be low [[ISUP nucleolar grade]] to call ''papillary adenoma''; cut-off was 0.5 cm in previous WHO GU book<ref>{{Ref WHOGU|28}}</ref> | ||
|- | |- | ||
| [[Atypical alveolar hyperplasia]] | | [[Atypical alveolar hyperplasia]] | ||
| Line 22: | Line 25: | ||
| <2mm | | <2mm | ||
| Low-grade [[ductal carcinoma in situ]] | | Low-grade [[ductal carcinoma in situ]] | ||
| Different criterion for lesions in an [[intraductal papilloma]] | | Different criterion for lesions in an [[intraductal papilloma of the breast]] | ||
|- | |- | ||
| [[Atypical ductal hyperplasia]] in an [[intraductal papilloma]] | | [[Atypical ductal hyperplasia]] in an [[intraductal papilloma of the breast]] | ||
| <3mm | | <3mm | ||
| Low-grade [[ductal carcinoma in situ]] in an intraductal papilloma | | Low-grade [[ductal carcinoma in situ]] in an intraductal papilloma | ||
| Different criterion for lesions '''not''' in an [[intraductal papilloma]] | | Different criterion for lesions '''not''' in an [[intraductal papilloma of the breast]] | ||
|- | |- | ||
| [[Pulmonary carcinoid tumourlet]] | | [[Pulmonary carcinoid tumourlet]] | ||
| Line 49: | Line 52: | ||
{{Reflist|1}} | {{Reflist|1}} | ||
[[Category: | [[Category:Cancer staging]] | ||