Search Results for: infundibulo-sebaceous-apocrine unit

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…hen planopilaris begins as punctate macules equidistant from one another because the process is infundibulofolliculocentric, infundibulofollicular units being equidistant to one another. In time, ostia of infundibula become dilated as they become…

Histologic Diagnosis of Inflammatory Skin Diseases

Foreign body reaction

…cess is granulomatous. Sometimes histiocytes are able to ingest and digest the material that is “foreign,” e.g., sebaceous secretion, cornified cells, bacteria, yeast, and mites from a ruptured infundibulum, but many times their efforts…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…, Noto G. Pseudomonas aeruginosa folliculitis after shower/bath exposure. Int J Dermatol 2000;39(4):270-73. Bibliography for infundibulofolliculitis Heymann WR. Infundibulofolliculitis of the neck. Cutis 2002;70:178–180. Owen WR, Wood C. Disseminate…

Differential Diagnosis in Dermatopathology

Discussions

…rhinophyma, the most dramatic presentation of rosacea, bulbous enlargement of a nose results from tremendous hyperplasia of sebaceous lobules and formation of many infundibular cysts that rupture, thereby sending contents of infundibula into the…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

…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…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

…howed normal follicular density, reduced shaft diameter, and increased percentages of telogen follicles and telogen germinal units. An inflammatory reaction was seen in 75% of patients and focal fibrosis was seen in 25%. Diffuse dermal fibrosis with…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Degeneration Syndrome?

…ttained. A follicle consists of an upper permanent segment, i.e., the isthmus whose boundaries are the point of entry of the sebaceous duct into the base of infundibular epidermis above and the site where corneocytes of the inner sheath desquamate…

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…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…of germinative cells with no indubitable signs of advanced follicular differentiation; no associated follicular papillae 3. Sebaceous cells and lobules often accompany follicles induced by histiocytes and fibrocytes 3. No sebaceous cells or lobules…