检查 对于那些没有其他原因能够解释的黑棘皮病患者,可能是彻底检查的一个部分。
在症状迅速播散并侵犯黏膜和掌跖部位的患者中,腹部恶性肿瘤的筛查也十分重要。[2]Schwartz RA. Acanthosis nigricans. J Am Acad Dermatol. 1994 Jul;31(1):1-19.http://www.ncbi.nlm.nih.gov/pubmed/8021347?tool=bestpractice.com[11]Schwartz RA. Acral acanthosis nigricans (acral acanthotic anomaly). J Am Acad Dermatol. 2007 Feb;56(2):349-50.http://www.ncbi.nlm.nih.gov/pubmed/17224380?tool=bestpractice.com
恶性 AN 可能伴随突然出现的多发性脂溢性角化或全身性瘙痒。[9]Moore RL, Devere TS. Epidermal manifestations of internal malignancy. Dermatol Clin. 2008 Jan;26(1):17-29.http://www.ncbi.nlm.nih.gov/pubmed/18023768?tool=bestpractice.com
这些患者通常体形消瘦而不是肥胖,一般年龄都在40岁以上。[2]Schwartz RA. Acanthosis nigricans. J Am Acad Dermatol. 1994 Jul;31(1):1-19.http://www.ncbi.nlm.nih.gov/pubmed/8021347?tool=bestpractice.com[9]Moore RL, Devere TS. Epidermal manifestations of internal malignancy. Dermatol Clin. 2008 Jan;26(1):17-29.http://www.ncbi.nlm.nih.gov/pubmed/18023768?tool=bestpractice.com[10]Curth HO. Cancer associated with acanthosis nigricans: a review of the literature and report of a case of acanthosis nigricans with cancer of the breast. Arch Surg. 1943 Dec;47(6):517-52.