Derm II cntnd...

pizudohu's version from 2016-09-24 22:48

Section 1

Question Answer
Pigmented lesionsseborrehic keratosis, basal cell carcinoma (BCC), actinic keratosis, Squamous cell carcinoma, neviverrucae (warts)
begin as light tan macule, and over time become more pigmented and elavated forming a plaque - eventually evolve into a warty papule with greasy texture and stuck on appearance seborrehic keratosis
t/f: seborrehic keratosis is normal occurancetrue - they occur in ppl over the age of 30; seen more commonly in patients with oily skin
most common type of skin cancer (75% of all skin cancers); common locally destructive malignant tumor of the basal cells of the lower epidermis basal cell carcinoma (BCC)
risk factors for BCC1) sun exposure - 85% occur on head and neck, 2) skin types I and II (fair skin, always burns), 3) exposure to radiation
can be precursor for squamous cell carcinoma (SCC); common in lighter individuals; sun-exposed areas; multiple plaques, brown, pink, or tan colored with scale. rough upon touch; begin as faint red macules - slightly scaly patch - enlargesactinic karatosis (AK) and squamous cell carcinoma (SCC)
nevipigmented or nonpigmented tumors of the skin that contain nevus cells (nevus cells originate from melanocytes)benign nevus pigmentosum -> dysplastic nevus -> melanoma
skin cancer screeningABCD

Section 2

Question Answer
most common viral infection of skin; common papillomavirus (HPV); signs and symptoms: rough with black dots, tender with pressure, absence of skin linesverrucae (warts)
disease of sebaceous glands beginning at puberty present on the face, neck, and trunk; affects 70% of the population; papules, pustules, nodules, and cysts = primary lesions; scarring, pitting, and excoriations= secondary lesionsacne vulgaris
inflammation at hair follicles, macules, bacterial causefolliculitis
crusting, deep tissue erythemiacellulitis
pustular diseasesacne vulgaris, folliculitis, cellulitis
signs of serious pustular infectionpurulent discharge, increasing pain/tenderness, swelling, redness, heat, foul smell, lymphangitis (red line leading twd. lymph nodes), fever, chills
vesicular diseasesherpes zoster & herpes simplex virus
painful acute dermatomal infection (pain, pruritis, dull ache in affected dermatome; may have pustules, erosion, or crust), possibly fever, malaise, or headache, located most commonly on trunk and 1st branch of trigeminal nerve (forehead, eyes, nose) - following one dermatomeherpes zoster
what causes herpes zosterreactivation of dormant varicella zoster virus (VZV)
definition of herpes simplex virusviral disorder of the skin characterized by grouped vesicles on an erythematous base
patient presents tingling or discomfort which rapidly evolves to a papule or vesicle, then it erodes and crusts. precipitated by stress, trauma, sunlight, fever, menses, pregnancy. spreads via close contact during vesicular stageherpes simplex virus
HSV of the eye causes purulent conjunctivitis with corneal ulceration and possible blindnesskeratoconjunctivitis (cannot miss this!!!)
very rare disorder; infant presents following a 2-21 day incubation period. leads to disseminated or CNS infection including refractory grand mal seizures, rapid progression to coma or deathneonatal HSV infection (get the maternal history, HSV +?)

Section 3

Question Answer
hair disordersHair loss: (alopecia, trichotillomania); Hair growth: (hirsuitism)
excessive growth of terminal hair in a male sexual growth patternhirsuitism
transient increased shedding of normal hair. causes increased daily hair loss and thinning of hair. Alopecia
types of alopeciaalopecia areata (1 patch); alopecia totalis or universalis (completely bald)
signs of nail infection onycholysis (separation of the nail bed) due to oncychomycosis; paronychial infection
signs of trauma in nailhabit tie, melanoma (streak down center - divide nail into diff colors) vs. nail trauma
signs of underlying disease in nailclubbing (indication of pulmonary/GI disease); pitted nail/splinter hemorrhages