Endocrine Diseases
The skin interacts with the endocrine system in many ways. Some of these are discussed in this chapter. Leventhal JS, et al: Skin manifestations of endocrine and neuroendocrine tumors. Semin Oncol…
Diseases of Subcutaneous Fat
An inflammatory disorder that is primarily localized in the subcutaneous fat is termed a panniculitis. This group of disorders may be challenging for both the clinician and the dermatopathologist. Clinically,…
Cutaneous Laser Surgery
Cutaneous laser surgery is a continually evolving area of dermatology. Development of new lasers, as well as improvements in existing lasers, continues to advance the field. As a result of…
Bacterial Infections
Bacterial infections in the skin often have distinct morphologic characteristics that should alert the clinician that a potentially treatable and reversible condition exists. These cutaneous signs may be an indication…
Hansen Disease
Epidemiology The World Health Organization (WHO) has committed itself to eliminating Hansen disease as a public health problem, but the disease remains endemic in certain regions, with 95% of cases…
Diseases Resulting From Fungi and Yeasts
Superficial and Deep Mycoses Fungal infections, including dermatophytes and candida, are the most common type of infection worldwide. Cutaneous infections are divided into superficial (those that affect mostly the skin)…
Cutaneous Lymphoid Hyperplasia, Cutaneous T-Cell Lymphoma, Other Malignant Lymphomas, and Allied Diseases
Cutaneous Lymphoid Hyperplasia (Lymphocytoma Cutis, Lymphadenosis Benigna Cutis, Pseudolymphoma) Benign cutaneous lymphoid hyperplasia can be caused by medications, injected foreign substances, infections, and arthropod bites, or it may be idiopathic….
Melanocytic Nevi and Neoplasms
Melanocytes originate in the embryonal neural crest and migrate to the epidermis, dermis, leptomeninges, retina, mucous membrane epithelium, inner ear, cochlea, and vestibular system. Nevus cells are a form of…
Macrophage/Monocyte Disorders
Granulatomatous reactions generally represent patterns of chronic inflammation that may take a long time to develop and a long time to respond to treatment. Granulomatous inflammation can occur in the…
Connective Tissue Diseases
Lupus erythematosus (LE), dermatomyositis (DM), scleroderma, rheumatoid arthritis, Sjögren syndrome, eosinophilic fasciitis, relapsing polychondritis, and related disorders are classified as connective tissue diseases. Basic to all these is a complex…
