Histological regression in primary cutaneous melanoma: recognition, prevalence and significance. 1992

K Blessing, and K M McLaren
Department of Pathology, Aberdeen University, Scotland, UK.

Five hundred and sixty-three primary cutaneous melanomas were assessed for the presence of histological regression in relation to the thickness of the lesion and features such as sex, anatomical location and clinical outcome. Regression was more common in thin lesions, being seen in 46% of thin (less than 1.5 mm) lesions, 32% of intermediate (1.5-3.0 mm) lesions and 9% of thick (greater than 3.0 mm) lesions. However, severe regression was only identified in 6.5% of thin lesions, 5.2% of intermediate lesions and 1.5% of thick melanomas. Regression was more common in superficial spreading melanomas and in lesions from the trunk and lower limb. Moderate and severe regression were seen slightly more often in men. Clinical follow-up, although not of statistical significance, suggests that regression in thin lesions is a sinister histological feature.

UI MeSH Term Description Entries
D008297 Male Males
D008545 Melanoma A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445) Malignant Melanoma,Malignant Melanomas,Melanoma, Malignant,Melanomas,Melanomas, Malignant
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009365 Neoplasm Regression, Spontaneous Disappearance of a neoplasm or neoplastic state without the intervention of therapy. Neoplasm Remission, Spontaneous,Remission, Spontaneous Neoplasm,Regression, Spontaneous Neoplasm,Spontaneous Neoplasm Regression,Spontaneous Neoplasm Remission
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D012878 Skin Neoplasms Tumors or cancer of the SKIN. Cancer of Skin,Skin Cancer,Cancer of the Skin,Neoplasms, Skin,Cancer, Skin,Cancers, Skin,Neoplasm, Skin,Skin Cancers,Skin Neoplasm
D015995 Prevalence The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given time. Period Prevalence,Point Prevalence,Period Prevalences,Point Prevalences,Prevalence, Period,Prevalence, Point,Prevalences

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