Search Results for: infundibuloapocrine-sebaceous-follicular unit

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

A malignant neoplasm made up of abnormal germinative cells analogous to those that compose the folliculosebaceous-apocrine germ in an embryo and that usually manifests clinically as a papule or nodule which may become ulcerated. On the basis of…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus versus Systemic Lupus Erythematosus? II

…nt to its termination, that is, a chronic inflammation or infiltration limited solely to the skin, and affecting chiefly the sebaceous glands and the parts immediately adjacent to them, ending in complete absorption, or in a cicatricial contraction…

Prediction without Pigment: a decision algorithm for non-pigmented skin malignancy

Prediction without Pigment: a decision algorithm for non-pigmented skin malignancy

…red to as a starburst vessel pattern in the reference cited [16] (Figure 2F – SCC) and BCC with ulceration, as well as sebaceous gland hyperplasia (additional clue: several white or yellow clods in central location) and molluscum contagiosum…

Extensive regression in pigmented skin lesions: a dangerous confounding feature

Extensive regression in pigmented skin lesions: a dangerous confounding feature

Abstract Spontaneous regression in melanomas is not an uncommon phenomenon, as it has been described in 10-35% of primary cutaneous lesions [1]. Regression does not appear to predict a more favorable course, since even fully regressed melanomas may…

Appearances may be deceiving

Appearances may be deceiving

The patient A 64-year-old white female presented with an asymptomatic brown-to-black nodular lesion located on her back in proximity (about 1.7 cm) to a surgical scar; indeed, the patient had developed a melanoma in situ on her back in 2010. She…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen striatus

…pidermis and, sometimes, between the dermis and epithelial structures of adnexa Necrotic keratinocytes scattered as solitary units within the epidermis Slight spongiosis Focal parakeratosis Fully developed Superficial and deep perivascular…

Differential Diagnosis in Dermatopathology

Discussions

…annulare, in contrast with the palisaded pattern of that condition, deposits of mucin are less abundant and histiocytes per unit area of dermis are fewer. Not uncommonly, both patterns are encountered together in the same section of tissue. Those…

Histologic Diagnosis of Inflammatory Skin Diseases

Acquired epidermolysis bullosa

…y acute discoid lupus erythematosus. Some lesions of acquired epidermolysis bullosa seem to be centered around an infundibulofollicular unit. Having studied numerous examples of acquired epidermolysis bullosa, we remain unable to formulate specific,…

Multiple familial trichoepithelioma: confirmation via dermoscopy

Multiple familial trichoepithelioma: confirmation via dermoscopy

…©2016 Navarrete-Dechent et al.] Discussion Trichoepitheliomas are rare benign hamartomatous tumors originating from the pilosebaceous follicle. They most commonly present as solitary papules, but in the familial setting they appear in clusters…