Histologic Diagnosis of Inflammatory Skin Diseases

Bacillary angiomatosis

Bacillary angiomatosis Synonyms Epithelioid angiomatosis Presentation stereotypical Age and sex Any age in patients with acquired immunodeficiency syndrome or with other forms of immunosuppression; rarely in patients without immunodeficiency Distrib…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Palpable Purpura?

…astic vasculitis is the fact that a variety of other unrelated diseases also are palpable purpuras. Mucha-Habermann disease, in addition to consisting of reddish papules, scaly papules, vesicles, ulcers, and scars, often displays purpuric papules. Th…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Hyalin?

“With the high power the hyaline is seen in very varied forms, which all show the same fuchsin red reaction. The first forms a section by itself; it comprises hyaline balls of different size, which lie free between the epithelial cells, and w…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Origin of Adnexal Neoplasms?

…tissue from which they arise.” Warren S. Neoplasm. In: Anderson WAD, ed. Anderson’s Pathology. 4th ed. St. Louis, MO: CV Mosby Co; 1961:450. “Tumors are classified on the basis of cell type, tissue of origin, whether benign or ma…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Breast a Sweat Gland?

“The breast is a modified sweat gland covered by skin and subcutaneous tissue.” Rosai J. The breast. In: Ackerman’s Surgical Pathology. 7th ed. St. Louis, MO: CV Mosby, 1989:1193. “The mammary glands are modified swat gla…

Dermatology Practical & Conceptual

Regression of nevi in a melanoma patient treated with interferon

Background High-risk melanoma patients are occasionally offered adjuvant treatment with interferon alpha 2b as a postsurgical treatment. This treatment is thought to improve disease-free survival by upgrading immunomodulatory functions, which cause…

Dermatology Practical & Conceptual

Letter to the Editor

To the Editor, In her essay, “On the nature of thought processes and their relationship to the accumulation of knowledge, Part XIII: The nature of evidence” [1], Cris Anderson helps us to look at the question of why a person would choose an alternat…

Histologic Diagnosis of Inflammatory Skin Diseases

Tuberculosis

Tuberculosis Synonyms Lupus vulgaris Presentation stereotypical Age and sex Any age in both sexes, usually adults Distribution of lesions Localized or widespread, depending on the manifestation specific of the disease Individual lesions Papules, pla…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Junctional Activity and Active Junctional Nevus?

“With further maturation junctional activity ceases and the lesion is composed only of dermal nevus cells (intradermal nevus).” Weedon D. Lentigines, nevi, and melanomas. In: Skin Pathology. 2nd ed. New York, NY: Churchill-Livingstone,…