A Clinical Atlas of 101 Common Skin Diseases

Herpes Simplex, Zoster, and Varicella

Conditions caused by infection with different strains of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic…

A Clinical Atlas of 101 Common Skin Diseases

Melanocytic Nevi and Melanotic Macules

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

Therapeutic Strategies in Dermatology

Sarcoidosis: Clinical Case

Clinical Case Case 1 38-year-old African American man No significant past medical history Review of systems reveals a chronic persistent cough over the past 4-5 months, mild fatigue, with no ocular complaints, no palpitations, and no other syste…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lentigo?

“Because lentigines are larger and more variegated than true freckles, they are not uncommonly biopsied to exclude melanocytic dysplasia or radial growth phase melanoma, such as lentigo maligna.” Murphy G. Melanocytic tumors. In: Derma…

Dermatology Practical & Conceptual

Pigmented tumor in the nostril

Abstract A 64-year-old man was noted to have a single pigmented lesion in the nostril of his nose. Clinical examination revealed a 5 mm nodular growth and brown lesion. With a presumed clinical diagnosis of malignant skin tumor, a biopsy was perform…

Histologic Diagnosis of Inflammatory Skin Diseases

Sebaceous Units

…elial cells proliferate once again and, one by one, accumulate lipid. In the course of weeks, fully lipidized sebaceous lobules, as well as ducts, come to replace undifferentiated cells of the mantle. After scores of years, at menopause and andropaus…

Histologic Diagnosis of Inflammatory Skin Diseases

Muscles

In the skin, smooth muscle occurs in two different unrelated settings. One is in fascicles that form muscles of hair erection and the other is in the wall of arterioles and venules. The fascicles that make up the arrector pili muscle originate from…