Search Results for: infundibulitis

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…blade of a microtome missed the infundibulum and, instead, sampled the changes around it. This is not a folliculitis, but an infundibulitis. 10.27.3A: Pustular dermatitis, infundibular, mixed-cell + 10.27.3B: Eosinophils predominate over neutrophils…

Histologic Diagnosis of Inflammatory Skin Diseases

"Perforating folliculitis" of chronic renal disease

…ouses such a lesion sometimes reveal the character basic to it, namely, infundibulocentric. Because the original suppurative infundibulitis has been excoriated so furiously, almost always all vestiges of it have been obliterated by the time a biopsy…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…ctly above the base of a wedge-shaped infiltrate of inflammatory cells is a clue to an insect “bite.” Spongiotic infundibulitis in the center of a wedge-shaped, perivascular and interstitial infiltrate made up of lymphocytes mostly is a…

Histologic Diagnosis of Inflammatory Skin Diseases

Elastosis perforans serpiginosa

…follicularis et parafollicularis in cutem penetrans” and which probably is nothing other than a widespread suppurative infundibulitis that persists and becomes complicated by rubbing in the form of prurigo nodularis, analogous to what develops…

Histologic Diagnosis of Inflammatory Skin Diseases

Reactive perforating collagenosis

…purative infundibulitis unrelated to trauma. Acquired perforating disorder of renal disease/diabetes begins as a suppurative infundibulitis and ends as picker’s nodules; severe pruritus brought about by the effects of the suppurative…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…no longer is able to contain contents of it, some of which are dispersed into the dermis where they induce suppurative peri-infundibulitis that progresses to granulomatous perifolliculitis and, eventually, to fibrosing peri-infundibulitis pictured…

Histologic Diagnosis of Inflammatory Skin Diseases

Pyoderma gangrenosum

…tes of neutrophils, marked edema of the papillary dermis, and an intact epidermis, but it is not associated with suppurative infundibulitis. Sometimes pyoderma gangrenosum and Sweet’s syndrome are indistinguishable from one another on grounds…

Histologic Diagnosis of Inflammatory Skin Diseases

Study By Disease

…ve folliculitis (Quiz #811) Suppurative folliculitis (Quiz #814) Suppurative folliculitis (furuncle) (Quiz #812) Suppurative infundibulitis (Quiz #665) Suppurative infundibulitis in a patient with Crohn’s disease (Quiz #897) Suppurative…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Pityrosporum Folliculitis and Demodectic Folliculitis?

…tinuity with the follicle. The infiltrates of inflammatory cells, neutrophils usually, within an infundibulum constitutes an infundibulitis, not a folliculitis. Nearly all suppurative infundibulitides, and especially those on the face, are…