lecture 36 terms Flashcards
check on learning (25 cards)
structural that binds keratin in the skin to epithelial cells and promotes nice strong barrier against pathogens
filaggrin
red, patchy, raised skin rash
papules
dry rectangular scales on skin of lower legs and shins (fish scale-like)
Ichthyosis
small rough bumps on face, arms, thighs (gooseflesh skin)
Keratosis pilaris
inflammation of skin on and around lips
Hyperlinear palms and cheilitis
Dennie Morgan line; extra fold of skin under the eye? and very indicative of this disease?
Atopic pleat
atopic dematitis
Blisters ooze & crust, may get infected.
Chronic atopic dermatitis can lead to tough/thickened skin
lichenification
general term for a group of rare autoimmune blistering epithelial disorders that results from loss of normal intercellular attachments in epidermis
Pemphigus
autoimmune destruction of desmoglein 1 (in epidermis, esp scalp). Least severe form of pemphigus
Pemphigus foliaceus
autoimmune destruction of desmoglein 3 lesions in epidermis & mucous membranes (e.g., in mouth) (basal layer of epidermis- 2ndary bacterial infections)
Pemphigus vulgaris (more severe)
firm sliding pressure with finger separates normal-appearing epidermis, producing an erosion
Positive Nikolsky’s sign
Punch biopsy, histopath: intraepithelial blister, intercellular edema and loss of cell attachments
acantholytic cells
The basal layer of keratinocytes are usually still hanging onto the basement membrane
tombstoning
showing antibody deposits and activation of complement, and ELISA for IgG4, IgG1, C’
Direct immunofluorescent staining
rounded, nucleated keratinocytes formed due to antibody-mediated damage of desmoglein
Tzanck smear
Sulfasalazine, pentoxifylline are what type of drugs?
anti TNF drugs
Rituximab is comprised of?
anti-CD20 antibody + IVIG
mycophenolate mofetil, azathioprine are a type of?
immunosuppressants
present in >90% of scleroderma patients
Vasospasm that causes discoloration of fingers and toes.
Makes digits turn blue, cold, and numb (like frostbite)
Raynaud’s phenomenon
skin lesions on lines of trauma (like poison ivy)
Koebner phenomenon
usually asymmetric peripheral joint involvement, less commonly symmetric joint or axial disease
psoriatic arthritis
Condition in which lighter patches develop on the skin due to loss of melanin pigmentation
Melanocyte destruction.
Any location on the body may be affected.
Vitiligo
one or few areas of depigmentation
Focal pattern
depigmentation on one side of the body
Segmental pattern