Search Results for: infundibulitis

Histologic Diagnosis of Inflammatory Skin Diseases

Incontinentia pigmenti

…sis. Unlike incontinentia pigmenti, erythema toxicum neonatorum is not a spongiotic dermatitis; it seems to be a suppurative infundibulitis that houses countless eosinophils, akin to eosinophilic pustular folliculitis of HIV and Ofuji’s…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…emplar, parakeratosis is accompanied mostly by a thinned or absent granular zone. 10.82.6A: Perivascular dermatitis and peri-infundibulitis + 10.82.6B: Widely dilated infundibula plugged by orthokeratotic and parakeratotic cells arranged in fashion…

From the Dermatologikum Hamburg: Quiz

From the Dermatologikum Hamburg: Quiz

…ed stage of the disease, and it is not clear to date what early lesions looked like, i.e., whether pustulation started as an infundibulitis or within surface epidermis. A broad variety of events have been documented to evoke erosive pustular…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…g present here. Perifolliculitis is common in lichen striatus. 10.61.5A: Perivascular dermatitis, patchy lichenoid, and peri-infundibulitis, lichenoid + 10.61.5B: Predominance of lymphocytes = Lichen striatus Because a lesion of lichen striatus…

Differential Diagnosis in Dermatopathology

Discussions

…to traction alopecia at the end of its course chronological. At a much earlier stage, traction alopecia is a lichenoid peri-infundibulitis/perifolliculitis in which lymphocytes predominate. The differential diagnosis of traction alopecia at that…

Differential Diagnosis in Dermatopathology

Discussions

…telangiectases in the upper part of the dermis, and a perivascular and peri-infundibular mixed-cell infiltrate. Suppurative infundibulitis sometimes accompanies granulomas in rosacea. The differential diagnosis histopathologic of tuberculoid…

Differential Diagnosis in Dermatopathology

Tuberculoid leprosy vs. Sarcoidosis

An inflammatory process, caused by the spirochete Treponema pallidum, that tends to evolve through three stages, namely, primary (typified usually by a solitary chancre), secondary (characterized by widespread macules and papules on skin and mucous…