Search Results for: x-linked ichthyosis

Histologic Diagnosis of Inflammatory Skin Diseases

Cells That Mediate Inflammation (Inflammatory Cells)

…infected by viruses. Furthermore, suppressor cells have cytotoxic functions. Unlike CD4-positive T helper cells that recognize antigens associated with MHC class II molecules, CD 8-positive suppressor cells identify antigens linked to MHC class I mol…

Dermatology Practical & Conceptual

From the Dermatologikum Hamburg: Quiz

…ase, but without ferrochelatase mutations, that is now called Xlinked dominant protoporphyria [7]. Deposits of protoporphyrin in skin leads to acute photosensitivity. Ultraviolet light absorption by protoporphyrin in plasma and erythrocytes when blo…

Dermatology Practical & Conceptual

Study By Disease

…gely resolved (Quiz #92) Verrucae vulgares (Quiz #704) Viral exanthem (Quiz #760) Viral exanthem (Quiz #821) Viral exanthem (Quiz #822) Vitiligo (Quiz #502) Wegener’s granulomatosis (Quiz #890) Xlinked ichthyosis (Quiz #501) Xanthogranuloma (Q…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Ichthyosis vulgaris Xlinked ichthyosis 1. Cornified layer thickened, but less than half the thickness of the viable epidermis 1. Cornified layer thickened and often at least half the thickness of the viable epidermis 2. Lamellate and basket-woven…

Differential Diagnosis in Dermatopathology

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Ichthyosis vulgaris Xlinked ichthyosis

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Reactive Perforating Collagenosis?

“A case is presented exhibiting an unusual reaction of the skin to superficial trauma. In response to minor trauma, certain changes take place within the papillary layer of the corium characterized by affinity of the connective tissue for hem…

Histologic Diagnosis of Inflammatory Skin Diseases

Grover’s disease

…acantholytic dermatosis Presentation stereotypical Age and sex Middle-aged and elderly adults, hardly ever younger than age 40 years and usually over age 60 years; white men mostly Distribution of lesions Widespread, but especially the trunk and les…

Histologic Diagnosis of Inflammatory Skin Diseases

Nerves

…avel along the course of the superficial and deep vascular plexuses, whence derives the term neurovascular plexuses. Figure 1.82 Unmyelinated cutaneous nerve endings transmit sensations of touch, pressure, temperature, pain, and itch to the central n…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Fibrosing Dermatitis

…assault coming either from outside or from inside the skin. External injuries to skin generally take the form of wounds, i.e., erosions and/or ulcerations (Fig. 5.351 A&B) inflicted by fingernails as they are employed like talons in the act of a…