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[[Melanoma]] is a group of serious skin cancers that arise from pigment cells (melanocytes); '''acral lentiginous melanoma''' is a kind of [[lentiginous]]<ref name="pmid17596173">{{cite journal |last1=Phan |first1=A. |last2=Touzet |first2=S. |last3=Dalle |first3=S. |last4=Ronger‐Savlé |first4=S. |last5=Balme |first5=B. |last6=Thomas |first6=L. |title=Acral lentiginous melanoma: histopathological prognostic features of 121 cases |journal=British Journal of Dermatology |date=2007 |volume=157 |issue=2 |pages=311–318 |doi=10.1111/j.1365-2133.2007.08031.x |pmid=17596173 |language=en |issn=1365-2133}}</ref> skin melanoma.<ref name="Andrews">{{cite book |author1=James, William D. |author2=Berger, Timothy G. |title=Andrews' Diseases of the Skin: clinical Dermatology |publisher=Saunders Elsevier |year=2006 |isbn=978-0-7216-2921-6 |display-authors=etal}}</ref><ref>{{Cite web|title = acral-lentiginous melanoma|url = http://medical-dictionary.thefreedictionary.com/acral-lentiginous+melanoma|access-date = 2015-05-23}}</ref> Acral lentiginous melanoma is the most common subtype in people with darker skins and is rare in people with lighter skin types. Acral lentiginous melanoma is observed on the [[Hand|palms]], [[Sole (foot)|soles]], under the [[Nail (anatomy)|nails]] and in the [[oral mucosa]]. It occurs on non-hair-bearing surfaces of the body, which have not necessarily been exposed to sunlight. It is also found on mucous membranes.<ref>{{Cite book|title = Pathology and Genetics of Skin Tumours|url = https://books.google.com/books?id=3QV1qKU_YrgC&q=Acral+lentiginous+melanoma+observed+on&pg=PA55|publisher = IARC|date = 2006|isbn = 9789283224143|first = Philip E.|last = LeBoit}}</ref> It is the most common form of melanoma diagnosed amongst [[Asian people|Asian]] and sub-Saharan African ethnic groups.<ref>{{Cite book|title = Textbook of Aging Skin|url = https://books.google.com/books?id=9-ALWZhXomAC&q=Acral+lentiginous+melanoma+ethnic+groups&pg=PA558|publisher = Springer Science & Business Media|date = 2010-01-22|isbn = 9783540896555|first = Miranda A.|last = Farage}}</ref> The average age at diagnosis is between sixty and seventy years.<ref>{{Cite book|title = Textbook of Physical Diagnosis: History and Examination|url = https://books.google.com/books?id=Kse7AgAAQBAJ&q=Acral+lentiginous+melanoma++age+of+diagnosis&pg=PA104|publisher = Elsevier Health Sciences|date = 2014-01-07|isbn = 9780323225076|first = Mark H.|last = Swartz}}</ref> |
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[[Melanoma]] is a group of serious skin cancers that arise from pigment cells they are really gay cells (melanocytes); '''acral lentiginous melanoma''' is a kind of [[lentiginous]]<ref name="pmid17596173">{{cite journal |last1=Phan |first1=A. |last2=Touzet |first2=S. |last3=Dalle |first3=S. |last4=Ronger‐Savlé |first4=S. |last5=Balme |first5=B. |last6=Thomas |first6=L. |title=Acral lentiginous melanoma: histopathological prognostic features of 121 cases |journal=British Journal of Dermatology |date=2007 |volume=157 |issue=2 |pages=311–318 |doi=10.1111/j.1365-2133.2007.08031.x |pmid=17596173 |language=en |issn=1365-2133}}</ref> skin melanoma.<ref name="Andrews">{{cite book |author1=James, William D. |author2=Berger, Timothy G. |title=Andrews' Diseases of the Skin: clinical Dermatology |publisher=Saunders Elsevier |year=2006 |isbn=978-0-7216-2921-6 |display-authors=etal}}</ref><ref>{{Cite web|title = acral-lentiginous melanoma|url = http://medical-dictionary.thefreedictionary.com/acral-lentiginous+melanoma|access-date = 2015-05-23}}</ref> Acral lentiginous melanoma is the most common subtype in people with darker skins and is rare in people with lighter skin types. Acral lentiginous melanoma is observed on the [[Hand|palms]], [[Sole (foot)|soles]], under the [[Nail (anatomy)|nails]] and in the [[oral mucosa]]. It occurs on non-hair-bearing surfaces of the body, which have not necessarily been exposed to sunlight. It is also found on mucous membranes.<ref>{{Cite book|title = Pathology and Genetics of Skin Tumours|url = https://books.google.com/books?id=3QV1qKU_YrgC&q=Acral+lentiginous+melanoma+observed+on&pg=PA55|publisher = IARC|date = 2006|isbn = 9789283224143|first = Philip E.|last = LeBoit}}</ref> It is the most common form of melanoma diagnosed amongst [[Asian people|Asian]] and sub-Saharan African ethnic groups.<ref>{{Cite book|title = Textbook of Aging Skin|url = https://books.google.com/books?id=9-ALWZhXomAC&q=Acral+lentiginous+melanoma+ethnic+groups&pg=PA558|publisher = Springer Science & Business Media|date = 2010-01-22|isbn = 9783540896555|first = Miranda A.|last = Farage}}</ref> The average age at diagnosis is between sixty and seventy years.<ref>{{Cite book|title = Textbook of Physical Diagnosis: History and Examination|url = https://books.google.com/books?id=Kse7AgAAQBAJ&q=Acral+lentiginous+melanoma++age+of+diagnosis&pg=PA104|publisher = Elsevier Health Sciences|date = 2014-01-07|isbn = 9780323225076|first = Mark H.|last = Swartz}}</ref> |