Canser yr ysgyfaint: Gwahaniaeth rhwng fersiynau

Mae '''canser yr ysgyfaint''', a elwir hefyd yn '''garsinoma'r ysgyfaint''',<ref name="Merck">{{cite web | title=Lung Carcinoma: Tumors of the Lungs | publisher=Merck Manual Professional Edition, Online edition | url=http://www.merck.com/mmpe/sec05/ch062/ch062b.html#sec05-ch062-ch062b-1405 | accessdate=15 August 2007 | deadurl=no | archiveurl=https://web.archive.org/web/20070816142739/http://www.merck.com/mmpe/sec05/ch062/ch062b.html#sec05-ch062-ch062b-1405 | archivedate=16 August 2007 | df=dmy-all }}</ref> yn diwmor [[ysgyfaint]] ffyrnig lle mae [[Cell|celloedd]] yn [[Meinwe|feinweoedd]] yr ysgyfaint yn tyfu'n afreolus.<ref>{{cite web|title=Non-Small Cell Lung Cancer Treatment –Patient Version (PDQ®)|url=http://www.cancer.gov/types/lung/patient/non-small-cell-lung-treatment-pdq|website=NCI|accessdate=5 March 2016|date=May 12, 2015|deadurl=no|archiveurl=https://web.archive.org/web/20160229172247/http://www.cancer.gov/types/lung/patient/non-small-cell-lung-treatment-pdq|archivedate=29 February 2016|df=dmy-all}}</ref> Gall y fath dwf ledaenu tu hwnt i'r ysgyfaint drwy'r broses metastasis, a hynny i feinweoedd cyfagos neu hyd yn oed rhannau eraill o'r corff.<ref>{{cite book | last1=Falk | first1=S | last2=Williams | first2=C | title=Lung Cancer—the facts | edition=3rd | chapter=Chapter 1 | pages=3–4 | publisher=Oxford University Press | year=2010 | isbn=978-0-19-956933-5 }}</ref> Mae'r rhan fwyaf o ganserau sy'n dechrau yn yr ysgyfaint, a elwir yn ganserau sylfaenol yr ysgyfaint, yn garsinomâu. Y ddau brif fath yw carsinoma ysgyfaint celloedd bychain (SCLC) a charsinoma ysgyfaint di-gelloedd bychain (NSCLC).<ref name=NCI2016Pt>{{cite web|title=Lung Cancer—Patient Version|url=http://www.cancer.gov/types/lung|website=NCI|accessdate=5 March 2016|deadurl=no|archiveurl=https://web.archive.org/web/20160309175259/http://www.cancer.gov/types/lung|archivedate=9 March 2016|df=dmy-all}}</ref> Ymhlith y symptomau mwyaf cyffredin y mae [[peswch]] (gan gynnwys peswch gwaed), colli pwysau, prinder anadl, a phoenau ynghylch y frest.<ref name="Harrison">{{Cite book | last1=Horn | first1=L | last2=Lovly | first2=CM | last3=Johnson | first3=DH | title=Harrison's Principles of Internal Medicine | publisher=McGraw-Hill | editor-last1=Kasper | editor-first1=DL | editor-last2=Hauser | editor-first2=SL | editor-last3=Jameson | editor-first3=JL | editor-last4=Fauci | editor-first4=AS | editor-last5=Longo | editor-first5=DL | editor-last6=Loscalzo | editor-first6=J | year=2015 | chapter=Chapter 107: Neoplasms of the lung | edition=19th | isbn=978-0-07-180216-1 }}</ref>