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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blaschkitis?

…ns and Marot in their report of relapsing acquired unilateral skin lesions following Blaschko’s lines.” Megahed et al. Acquired relapsing self-healing Blaschko dermatitis. J Am Acad Dermatol 1994;31:849–52. “Blaschkitis is a…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lentigo?

…noma. In: Elder DE (ed.). Lever’s Histopathology of the Skin. Philadelphia, PA: Lippincott Williams & Wilkins, 2005:723. The word lentigo derives from the Latin word for lentil and was applied first in dermatology to pigmented lesions that…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus versus Systemic Lupus Erythematosus? II

…Idiopathic connective tissue disorders. In: Pathology of the Skin with Clinical Correlations. Philadelphia, PA: JB Lippincott, 1989:11.2. “Three major clinical variants are recognized—chronic discoid lupus erythematosus which involves only th…

Histologic Diagnosis of Inflammatory Skin Diseases

Embryologic Development

All constituents of human skin are derived from either ectoderm or mesoderm. The epithelial structures, i.e., epidermis (surface and infundibular), apocrine units, sebaceous units, hair follicles, eccrine units, and nail units, come from ectoderm. M…

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