Search Results for: sebocyte-like melanocyte

On the nature of thought processes and their relationship to the accumulation of knowledge, Part XVI-The process of making a diagnosis

On the nature of thought processes and their relationship to the accumulation of knowledge, Part XVI-The process of making a diagnosis

…the likelihood is much higher that the item will be of class A than of any other class. Items of class A are ten times more likely than class B and 100 times more likely than class C. As we add attributes to the set that represents the attributes…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

…e a 72-year-old woman with a 13-year history of a lichenoid dermatitis, who developed multiple, papular keratoacanthoma (KA)-like lesions and few crater-like nodules on the extremities over a period of 6 months before our observation. Her medical…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…o classification easily, e.g., disseminated superficial actinic porokeratosis, which, at an early stage, is marked by a band like infiltrate of lymphocytes. It is not always possible to differentiate authentic lichen planus from its look-alikes…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…ichen amyloidosis, but some of them are congenital, as in a garment 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…

Extensive regression in pigmented skin lesions: a dangerous confounding feature

Extensive regression in pigmented skin lesions: a dangerous confounding feature

…y specific features of melanoma (Figure 1B). Histopathologic examination showed hyperplasia of the epidermis, prominent scar-like fibrosis of the dermis (corresponding dermoscopically to scar-like depigmented areas), vascular hyperplasia, moderately…

Histologic Diagnosis of Inflammatory Skin Diseases

Cells That Mediate Inflammation (Inflammatory Cells)

…e total protein in eosinophils consists of major basic protein that is localized to the crystalline core of the granule and, like eosinophil peroxidase, is toxic to parasites like Schistosoma mansoni, larval forms of Trichinella spiralis, and…

Histologic Diagnosis of Inflammatory Skin Diseases

Hair Follicles

…ly anagen. At the base of the isthmus is a new follicular germ and beneath it sits an incipient follicular papilla. The germ-like structure, like the germ of the infundibuloapocrine-sebaceous- follicular unit in an embryo, is characterized at its…