Search Results for: tuberculosis

Histologic Diagnosis of Inflammatory Skin Diseases

Tuberculosis verrucosa cutis

…Unlike the situation in primary inoculation tuberculosis, in which a host never before had exposure to tubercle bacilli, in tuberculosis verrucosa cutis, a host had developed immunity to tubercle bacilli previously. As a consequence, instead of…

Histologic Diagnosis of Inflammatory Skin Diseases


…eous fat manifested clinically at first by one or more red nodules that, in time, become ulcerated and heal with scars, usually on the posterior aspect of the legs of short, thick-legged women. No cause is usually found, but when Mycobacterium…

A Clinical Atlas of 101 Common Skin Diseases

Atypical Mycobacterial Infections

Infection of skin and subcutaneous tissue by atypical mycobacteria, that is, mycobacteria other than those responsible for tuberculosis and leprosy, expressed clinically as keratotic and crusted papules, plaques, nodules, and tumors that may be…

A Clinical Atlas of 101 Common Skin Diseases

Borreliosis (Lyme Disease)

An inflammatory disease caused by the spirochete Borrelia burgdorferi that manifests itself in the skin as erythematous lesions with figurate shapes, e.g., (round, ellipsoid, and arcuate) (erythema chronicum migrans), pseudolymphomatous nodules…

A Clinical Atlas of 101 Common Skin Diseases

Erythema Nodosum

An inflammatory process, i.e., a panniculitis, marked by tender erythematous plaques, nodules, or tumors (or combinations thereof) that usually affect the anterior aspect of the legs and, less often, the arms, and induced by processes, in an organ…

Therapeutic Strategies in Dermatology

Erythema Multiforme: Key Points

Key Points Erythema multiforme (EM) is a clinical syndrome marked by either target lesions and/or mucosal erosions. It may be idiopathic or seen in association with infections or medications. EM has been reported in association with herpes simplex…

Therapeutic Strategies in Dermatology

Varicella & Herpes Zoster: Treatment

Treatment Primary Varicella Infection Primary varicella is typically a self-limited and mild infection in healthy immunocompetent children under 12 years old and treatment is not generally recommended in such cases. In adolescents and adults, early…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…t is not “transient,” although it may be. Error: Tuberculids are true hypersensitivity reactions to mycobacteria tuberculosis. Reason: All of the conditions referred to in times past (when tuberculosis was rife and the cause of it was…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Id Reactions?

…1920:563. “They [tuberculids] are considered immune reactions within the skin due to hematogenous dissemination of M. tuberculosis or its antigens from a primary source, in an individual with strong antituberculous cell-mediated immunity….