Histologic Diagnosis of Inflammatory Skin Diseases

Images

…anular zone. 10.82.6A: Perivascular dermatitis and peri-infundibulitis + 10.82.6B: Widely dilated infundibula plugged by orthokeratotic and parakeratotic cells arranged in fashion alternating = Pityriasis rubra pilaris, fully developedSecti…

Dermatology Practical & Conceptual

From the Dermatologikum Hamburg: Quiz

…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 dermatosis of the scalp, among them being local trauma, synthetic fiber…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…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 plays itself out over the course of months, there are many mani…

Histologic Diagnosis of Inflammatory Skin Diseases

Seborrheic dermatitis

…c dermatitis basically is a spongiotic process, especially an infundibulitis, that can be differentiated from other spongiotic processes by proclivity of mounds of scale-crust for lips of infundibular ostia. In evolving lesions when neutrophils are p…

Differential Diagnosis in Dermatopathology

Discussions

…ular and peri-infundibular mixed-cell infiltrate. Suppurative infundibulitis sometimes accompanies granulomas in rosacea. The differential diagnosis histopathologic of tuberculoid leprosy includes lupus vulgaris and the recidivous form of leishmanias…

Differential Diagnosis in Dermatopathology

Discussions

…t a much earlier stage, traction alopecia is a lichenoid peri-infundibulitis/perifolliculitis in which lymphocytes predominate. The differential diagnosis of traction alopecia at that stage of it is lichen planopilaris. Search Derm101.com for trichot…

Differential Diagnosis in Dermatopathology

Tuberculoid leprosy vs. Sarcoidosis

An inflammatory process that results from the effects of a drug administered systemically, e.g., by ingestion, inhalation, injection, or application rectally, and manifested usually by lesions distributed widely and symmetrically. Any of the many ex…