Biomaterial Database

Kerosis and comedos without prominent elastosis in Favre-Racouchot disease. 1987

A Hassounah, and G E Piérard

Favre-Racouchot disease often is reported to be characterized by the association of cysts and comedos with prominent solar elastosis. Our histological study of patients who rarely exposed themselves to solar irradiation revealed no association between these signs. We detected only the presence of kerosis, as well as closed and open comedos. There were no true cysts. Actinic damage to the epidermis was absent, and solar elastosis was moderate to discrete. Therefore, the characteristic follicular alterations in Favre-Racouchot disease appear to be independent of and not secondary to solar elastosis.

UI	MeSH Term	Description	Entries
D007633	Keratins	A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.	Cytokeratin,Keratin Associated Protein,Keratin,Keratin-Associated Proteins,alpha-Keratin,Associated Protein, Keratin,Keratin Associated Proteins,Protein, Keratin Associated,alpha Keratin
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D004547	Elastic Tissue	Connective tissue comprised chiefly of elastic fibers. Elastic fibers have two components: ELASTIN and MICROFIBRILS.	Elastic Fibers,Elastic Fiber,Elastic Tissues,Fiber, Elastic,Fibers, Elastic,Tissue, Elastic,Tissues, Elastic
D005148	Facial Dermatoses	Skin diseases involving the FACE.	Favre-Racouchot Syndrome,Nodular Elastoidosis,Facial Dermatosis,Nodular Elastosis,Dermatoses, Facial,Dermatosis, Facial,Elastoidoses, Nodular,Elastoidosis, Nodular,Elastoses, Nodular,Elastosis, Nodular,Favre Racouchot Syndrome,Nodular Elastoidoses,Nodular Elastoses,Syndrome, Favre-Racouchot
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
D012627	Sebaceous Glands	Small, sacculated organs found within the DERMIS. Each gland has a single duct that emerges from a cluster of oval alveoli. Each alveolus consists of a transparent BASEMENT MEMBRANE enclosing epithelial cells. The ducts from most sebaceous glands open into a HAIR FOLLICLE, but some open on the general surface of the SKIN. Sebaceous glands secrete SEBUM.	Gland, Sebaceous,Glands, Sebaceous,Sebaceous Gland
D012871	Skin Diseases	Diseases involving the DERMIS or EPIDERMIS.	Dermatoses,Skin and Subcutaneous Tissue Disorders,Dermatosis,Skin Disease
D013472	Sunlight	Irradiation directly from the sun.	Sunshine