Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

Lichen planus Synonyms Lichen ruber planus Lichen ruber Presentation stereotypical Age and sex More common in women, especially young and middle-aged adults Distribution of lesions Flexor surface of forearms and wrists, but no site is exempt. Occu…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

“So we have to start once more [in regard to what is the authentic nature of lichen rubra moniliformia], returning to the old case of Kaposi by which the question began in 1886.” Pinkus H. Lichen ruber moniliformis Kaposi. Arch Dermato…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…rment type of congenital melanocytic nevus, an epidermal nevus like that known as ichthyosis hystrix, and a connective tissue nevus like a shagreen “patch.” Figure 3.27 Plaque. PROLIFERATION [L. proles (offspring) + ferre (to bear)]: A…

Histologic Diagnosis of Inflammatory Skin Diseases

Cells That Mediate Inflammation (Inflammatory Cells)

…he newly formed phagolysosome, azurophilic granules being more likely to send their contents into phagosomes, whereas specific granules are more likely to discharge their contents extracellularly. Neutrophils function chiefly as phagocytes, but, as m…

Histologic Diagnosis of Inflammatory Skin Diseases

Hair Follicles

…numbers are interspersed among matrical cells in the bulb, few melanocytes are found along the course of the stem and the isthmus; in the infundibulum, melanocytes are disposed in a manner like that of surface epidermis. The growth of hair is cyclica…

Dermatology Practical & Conceptual

Spitz and Reed nevi: acquired or congenital?

…te melanocytes are an expected finding in congenital type nevi like Unna or Miescher nevi, but virtually never seen in acquired nevi like Clark’s [1]. Thus, the occurrence of large and multinucleate melanocytes in about 25% of the lesions analy…