Search Results for: infundibulitis

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.39.1A: Infundibulitis, spongiotic, and peri-infundibulitis + 10.39.1B: Predominance of lymphocytes in and around infundibula dilated by corneocytes = Fox-Fordyce disease Spongiosis in the wall of an infundibulum near the site where an apoc…

Histologic Diagnosis of Inflammatory Skin Diseases

Majocchi’s granuloma

…only at the apogee of it; the condition begins as suppurative infundibulitis that, in time, becomes suppurative peri-infundibulitis and, not uncommonly, suppurative folliculitis and perifolliculitis, eventually being associated with granulomatous inf…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…A comedo in association with granulomatous and fibrosing peri-infundibulitis = Acne vulgaris Many of the findings pictured here may be seen in other types of suppurative infundibulitis, but the presence of a comedo in the context of the suppurative p…

Histologic Diagnosis of Inflammatory Skin Diseases

Hair Follicles

…generally is designated “folliculitis” really is infundibulitis, the infundibulum rather than the follicle being the epithelium involved. Infundibulitides usually are suppurative, e.g., noninfectious, as in acne vulgaris, and infectious,…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Fibrosing Dermatitis

…(sclerosis). Fibrosing dermatitis (as well as fibrosing peri-infundibulitis/perifolliculitis and fibrosing panniculitis) results, in every instance, from injury to nonepithelial tissue, usually connective tissue, the assault coming either from outsi…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…r folliculitis.” It seems, however, to be a suppurative infundibulitis fundamentally to which has been attracted large numbers of eosinophils. 10.27.2A: Perivascular and interstitial dermatitis + 10.27.2B: Lymphocytes and eosinophils in and aro…

Histologic Diagnosis of Inflammatory Skin Diseases

"Perforating folliculitis" of chronic renal disease

…nal disease Comment This condition, essentially a suppurative infundibulitis, is vexing to patients practically and to physicians conceptually. It is troubling to patients because the suppurative infundibulitis induces maddening pruritus, and is frus…

Histologic Diagnosis of Inflammatory Skin Diseases

Elastosis perforans serpiginosa

…fferential diagnosis histopathologic Longstanding suppurative infundibulitis, including Kyrle’s disease, is not associated with an increased number of elastic fibers in the papillary dermis or of elastic fibers in channels that, in company with…

Histologic Diagnosis of Inflammatory Skin Diseases

Reactive perforating collagenosis

…nical Perforating “folliculitis” is a suppurative infundibulitis unrelated to trauma. Acquired perforating disorder of renal disease/diabetes begins as a suppurative infundibulitis and ends as picker’s nodules; severe pruritus broug…

Histologic Diagnosis of Inflammatory Skin Diseases

Pyoderma gangrenosum

…if present, representing the uppermost part of a suppurative infundibulitis, the infundibulum having been cut obliquely Fully developed Dense diffuse infiltrate of neutrophils extending throughout the dermis and, sometimes, into the subcutaneous fat…