Search Results for: infundibulo-sebaceous-apocrine unit

Histologic Diagnosis of Inflammatory Skin Diseases

Foreign body reaction

…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 are in vain; silica, suture, material of tattoos, urates, and sp…

Differential Diagnosis in Dermatopathology

Discussions

…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 dermis and inducing suppurative granulomatous inflammation that cu…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

…creased 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 destruction of follicular structures was present in 5% of the s…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen striatus

…gmented papules in dark-skinned persons Involvement of a nail unit with eventual dystrophy of the nail plate Differential diagnosis clinical Linear lichen planus is purple, and individual papules are topped by white streaks arranged in a reticulated…

Histologic Diagnosis of Inflammatory Skin Diseases

Psoriasis

…duce lesions other than psoriasiform ones, e.g., vesicular or infundibulofollicular (Majocchi’s granuloma), vegetating plaque, nodules, and tumors (kerion). Seborrheic dermatitis is characterized by serum in conjunction with mounds of parakerat…

Differential Diagnosis in Dermatopathology

Discussions

…tion, 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 patterns are not reflected in differences in appearance clinical….

Dermatology Practical & Conceptual

About transitions

Dear Readers, Mark A. Hurt, the Editor of the Book Review Section of Dermatology Practical & Conceptual has decided, after a decade of contributions, that the time has come to him to transition out of his role. Mark was recruited by Bernie Acker…