Search Results for: infundibulo-sebaceous-apocrine unit

A Clinical Atlas of 101 Common Skin Diseases

Lichen Planus

…violaceous papules that have a polygonal outline and flat top, and that tends to favor flexural surfaces of skin and the buccal mucosa of the oral cavity. It sometimes affects follicles and nail units as well….

A Clinical Atlas of 101 Common Skin Diseases

Acne Vulgaris

A disease of infundibulosebaceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve…

A Clinical Atlas of 101 Common Skin Diseases

Verrucae

Papules on skin and mucous membranes that result from infection of keratinocytes by different types of papillomavirus and classified according to their silhouettes, to wit, papillated (verrucae vulgares on different sites such as volar skin, i.e.,…

A Clinical Atlas of 101 Common Skin Diseases

Epidermal Nevi

…Epidermal nevi are hamartomas in which the epidermis is abnormal, being hyperkeratotic, and in which lesions are aligned along Blaschko’s lines….

A Clinical Atlas of 101 Common Skin Diseases

Dyshidrotic Dermatitis

A pruritic papular and vesicular inflammatory process of unknown cause that tends to affect the sides of fingers and toes, as well as palms and soles. The name “dyshidrotic” is misleading; the condition has no relation whatever to…

A Clinical Atlas of 101 Common Skin Diseases

Melanocytic Nevi and Melanotic Macules

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different…

A Clinical Atlas of 101 Common Skin Diseases

Candidiasis

…ry disease caused by the yeast Candida albicans and manifested clinically as erythematous papules and pustules that may become confluent to form plaques in the case of the former and erosions in the case of the latter. The nail unit may be affected…

Histologic Diagnosis of Inflammatory Skin Diseases

Embryologic Development

…ss at the base of the future surface epidermis. Germinative cells proliferate to become the infundibular epidermis, apocrine unit, sebaceous unit, and hair follicle. The bulge of the follicle situated beneath the future sebaceous gland represents…