Therapeutic Strategies in Dermatology

Tuberculosis, Cutaneous: Overview

…formerly called “tuberculids” (erythema induratum, papulonecrotic tuberculid, lichen scrofulosum). In all cases, tissue biopsies for culture should be performed. Often in the later conditions, cultures and polymerase chain reaction studie…

A Clinical Atlas of 101 Common Skin Diseases

Tuberculosis

An inflammatory process caused by Mycobacterium tuberculosis. In the skin, it may be primary as a consequence of direct inoculation (tuberculosis verrucosa cutis) or secondary to a focus of tuberculosis in another organ (the lung for lupus vulgaris,…

A Clinical Atlas of 101 Common Skin Diseases

Rosacea

A papular and pustular inflammatory process that is centered in follicles and is distributed mostly in the middle third of the face in both vertical and horizontal directions. Among the varied manifestations of rosacea are innumerable telangiectases…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Id Reactions?

…and Fourie reported that in four of their patients, lesions of papulonecrotic tuberculid evolved into lupus vulgaris. This phenomenon supports the supposition that lesions of papulonecrotic tuberculid represent a local reaction to the hematogenous di…

Histologic Diagnosis of Inflammatory Skin Diseases

Nodular vasculitis

…re numerous “tuberculids,” among them rosacea-like tuberculid of Lewandowsky, papulonecrotic tuberculid, lupus miliaris disseminatus faciei, acnitis, and lichen scrofulosorum. In brief, many conditions typified by tuberculoid granulomas w…

Histologic Diagnosis of Inflammatory Skin Diseases

Rosacea

…atol 1951;63:409–18. Laymon CW, Michelson HE. The micropapular tuberculid. Arch Dermatol 1940;42:625–40. Laymon CW, Schoch EP Jr. Micropapular tuberculid and rosacea. Arch Dermatol Syphilol 1948;58:286–300. Lewandowsky F. Über rosacea-ähnliche Tuberk…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.94.1A: Infundibulitis, spongiotic, and peri-infundibulitis, granulomatous + 10.94.1B: Lymphocytes and plasma cells around collections of epithelioid histiocytes = Rosacea, papular  Spongiosis in an infundibulum is a finding comm…

Histologic Diagnosis of Inflammatory Skin Diseases

Tuberculosis

…und in some of these lesions by polymerase chain reaction. (b) Papulonecrotic tuberculid presents itself as an eruption symmetric of ulcerated papules and nodules in young adults. (c) Lichen scrofulosorum consists of grouped papules in tuberculous ch…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Wegener’s Granulomatosis?

“Inside the nose besides extensive necrosis, there is a cell-rich granulomatous tissue with granulomatous epithelioid cell foci which surround the vessels. . . . In both lungs: infarct-like necrosis in which one finds severe changes in the ve…