Dermatology Flashcards

(71 cards)

1
Q

impetigo contagiosa

etiology

A

Caused by group A beta-hemolytic streptococcus (GABHS) or staphylococcus aureus (can be a combination) Highly infectious and spread through close contact

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2
Q

impetigo contagiosa

signs and symptoms

A

Mild itching and soreness followed by eruption of small vesicles and pustules that rupture and crust
Generally develops in body folds subject to friction

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3
Q

impetigo contagiosa

treatment

A

Cleansing and topical antibacterial agents

Systemic antibiotics

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4
Q

folliculitis

etiology

A

Inflammation of hair follicle
Most often caused by staphylococcus aureus
Begins as thin, yellowish-white pustules with a hair in the center (can present with a narrow red areola around the pustules)
Occurs most often around the scalp, buttocks, back of head and extremities although in men it can occur around the face and neck.
Moist warm environment and mechanical occlusion contribute to condition

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5
Q

folliculitis

signs and symptoms

A

Redness around follicle followed by development of papule or pustule at the hair follicle
Followed by development of crust that sloughs off with the hair
Deeper infection may cause scarring and alopecia (loss of hair) in that area

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6
Q

folliculitis

treatment

A

Management is much like impetigo
Moist heat is used to increase circulation
Antibiotics can also be used depending on the condition

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7
Q

furunculosis

etiology

A

Deep infection of hair follicle resulting in pustule formation
More severe form of folliculitis

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8
Q

furunculosis

signs and symptoms

A

Pustule that becomes reddened and enlarged as well as hard from internal pressure
Pain and tenderness increase with pressure
Most will mature and rupture

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9
Q

furunculosis

treatment

A

Care involves protection from additional irritation
Referral to physician for antibiotics
Keep athlete from contact with other team members while boil is draining

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10
Q

carbuncles

etiology

A

Deeper, more serious lesion arising from more than one hair follicle

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11
Q

carbuncles

signs and symptoms

A

Larger and deeper than furuncle and has several openings in the skin
May produce fever and elevation of WBC count
Starts hard and red and over a few days emerges into a lesion that discharges yellowish pus

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12
Q

carbuncles

treatment

A

Surgical drainage combined with the administration of antibiotics
Warm compress is applied to promote circulation

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13
Q

acne vulgaris

etiology

A

Inflammatory disease of the hair follicle and the sebaceous glands (pilosebaceous unit) commonly affecting the face, chest, and back
Believed to be caused by the hyperkeratinization (thickening of the horny layers of skin – Vitamin A deficiency) of the hair follicle causing follicullar plugging trapping propionibacterium acnes
Sex hormones may contribute

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14
Q

acne vulgaris

signs and symptoms

A

Present with whiteheads, blackheads, flesh or red colored papules, pustules or cysts
May scare if chronic and deep
Psychological impact

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15
Q

acne vulgaris

treatment

A

Can be very challenging to treat
Topical and systemic agents used to treat acne
Mild soaps are recommended

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16
Q

paronychia and onychia

etiology

A

Caused by staph, strep, and/or fungal organisms that accompany contamination of open wounds or hangnails
Damage to cuticle puts finger at risk

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17
Q

paronychia and onychia

signs and symptoms

A

Rapid onset; painful with bright red swelling of proximal and lateral fold of nail
Accumulation of purulent material w/in nail fold

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18
Q

paronychia and onychia

treatment

A

Soak finger or toe in hot solution of Epsom salt 3 times daily
Topical antibiotics, systemic antibiotics if severe
May require pus removal through skin incision

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19
Q

cellulitis

etiology

A

An acute, spreading inflammation of the dermis and subcutaneous tissue usually produced by a bacteria (strep and/or staph)
May be caused by fungi and viruses as well

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20
Q

cellulitis

signs and symptoms

A

Red, hot, swollen, and tender localized area with diffuse margins
Person may have systemic s/s including fever, chills, and malaise

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21
Q

cellulitis

treatment

A

Antibiotics (may require hospitalization)
Bedrest
Elevation of the involved extremity
Mark the margins of the cellulitis in order to track progression or regression

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22
Q

tinea capitis

signs and symptoms

A

Ringworm of the scalp begins as a small papule that spreads peripherally
Appears as small grayish scales resulting in scattered balding
Easily spread through close physical contact

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23
Q

tinea corporis

treatment

A

Topical antifungal cream

Oral antifungal agent may be indicated

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24
Q

tinea cruris

etiology

A

Symmetric red-brown scaling plaque with snake-like border

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25
tinea cruris | signs and symptoms
Mild to moderate itching
26
tinea cruris | treatment
Treat until cured Will respond to many of the non-prescription medications Failure to respond to normal management may suggest a non-fungal problem (such as bacteria) and should be referred to a physician May require additional topical medications and oral prescriptions
27
tinea pedis | etiology
Most common form of superficial fungal infection Tricophyton species are most common cause of athlete’s foot Webs of toes may become infected by a combination of yeast and dermatophytes
28
tinea pedis | signs and symptoms
Extreme itching on soles of feet, between and on top of toes Appears as dry scaling patch or inflammatory scaling red papules forming larger plaques May develop secondary infection from itching and bacteria
29
tinea pedis | treatment
Topical antifungal agents and good foot hygiene
30
tinea versicolor | etilogy
Is a noncontagious, chronically relapsing, superficial fungal infection caused by the yeast Mallassezia furfur
31
tinea versicolor | signs and symptoms
Characterized by scaling macules on the trunk and is more prevalent in warmer climates during the summer
32
tinea versicolor | treatment
``` Topical antifungals (selenium sulfide: Selsun blue) Oral antifungals if indicated ```
33
varicella | etiology
Caused by the varicella-zoster virus and has a incubation period of about 14 to 21 days
34
varicella | signs and symptoms
Characterized by “teardrop” vesicles on an erythematous base that erupt. Lesions quickly become pustular and then crust
35
varicella | treatment
Topical antipruritic lotions, oatmeal baths, and wearing light colored clothing. May use Acyclovir therapy if problematic such as in immunosuppressed individuals
36
Herpes Simplex Labialis, Gladiatorum, and Herpes Zoster | etiology
Highly contagious and is usually transmitted directly through a lesion in the skin or mucous membrane Resides in sensory nerve neurilemmal sheath following initial outbreak Recurrent attacks stimulated by sunlight, emotional disturbances, illness, fatigue, or infection
37
Herpes Simplex Labialis, Gladiatorum, and Herpes Zoster | signs and symptoms
Early indication = tingling or hypersensitivity in an infected area 24 hours prior to appearance of lesions Local swelling followed by outbreak of vesicles Athlete may feel ill w/ headache, sore throat, swollen lymph glands, and pain in area of lesions Vesicles generally rupture in 1-3 days spilling serous material Heal in generally 10-14 days If an athlete has an outbreak they should be disqualified from competition due to contagious nature of condition
38
Herpes Simplex Labialis, Gladiatorum, and Herpes Zoster | treatment
Herpes simplex lesions are self limiting - reduce pain and promote early healing Use of antiviral drugs can reduce recurrence and shorten course of outbreak
39
verruca vulgaris | etiology
Different types of human papillomavirus have been identified
40
verruca plana | signs and symptoms
Small, round, elevated papules with rough dry surfaces Painful if pressure is applied May be subject to secondary bacterial infection
41
verruca plana | signs and symptoms
If vulnerable, they should be protected until treated by a physician Use of electrocautery, topical salicylic acid, or liquid nitrogen are common means of managing this condition
42
verruca plantaris | etiology
Spread through papilloma virus
43
verruca plantaris | signs and symptoms
Located on sole of foot, on or adjacent to areas of abnormal weight bearing Areas of excessive epidermal thickening Discomfort, point tenderness Hemorrhagic puncta (black seeds)
44
verruca plantaris | treatment
While in competition, protect and prevent spreading Pair away callus and apply a keratolytic (40% salicylic acid plaster) Following season, wart can be removed by freezing it or by electrodessication (maintain protection until removal)
45
molluscum contagiosum | etiology
Poxvirus (A large DNA virus that replicates in the cytoplasm of infected cells) infection which is more contagious than warts (especially during direct body contact)
46
molluscum contagiosum | signs and symptoms
Small, flesh, or red colored, smooth-domed papules with central umbilication
47
molluscum contagiosum | treatment
Physician referral is necessary | Cleansing and destructive procedure (counterirritant such as cantharidin, surgical removal or cryosurgery)
48
contact dermatitis | etiology
Plants are the most common cause (poison ivy, poison oak, sumac, ragweed, primrose) Topical medications Chemicals found in fragrances and preservatives of soaps, detergents
49
contact dermatitis | signs and symptoms
Onset may range from 1 day to 1 week Redness, swelling, formation of vesicles that ooze fluid and form crust, constant itching May change from redness and blistering to erythematous scaling, lichenified papules, and plaques
50
contact dermatitis | treatment
Avoid allergen | Tap water compresses or soaks, topical corticosteroids
51
atopic dermatitis | etiology
Not understood, but believed to be hereditary having a immunological origin
52
atopic dermatitis | signs and symptoms
Pruritius, erythematous, and edematous papules and plaques often showing crusting
53
atopic dermatitis | treatment
Emollients, topical steroids (hydrocortisone), and in severe cases oral steroids
54
interigo | etiology
Inflammation of body folds often due to chafing together of the warm, moist skin especially in those overweight or diabetic May become infected with bacteria or yeast
55
interigo | signs and symptoms
Red, raw looking skin that may itch, ooze, or be a little sore Usually located in the inner thighs, armpits, or underside of breasts or belly
56
interigo | treatment
Yeast or bacterial infections can be treated with oral or topical medications Keep area dry and exposed to air May use powders and cotton fabrics to help absorb sweat
57
psoriasis | etiology
Exact cause is unknown -- genetic factors may play a role in condition Infection, smoking, some drugs and possible hormonal factors may cause an outbreak
58
psoriasis | signs and symptoms
Lesion begins as reddish papules that progress to plaques Lesions progress to yellowish white scaly condition that tends to be located on the elbows, knees, trunk, genitalia, and umbilicus
59
psoriasis | treatment
Teaching patient self management Glucocorticoids and kerolytic agents can be used in conjunction with each other Long term oral medications may be necessary Counseling may be necessary for psychological aspects of condition
60
sebaceous cyst | etiology
Also known as an epidermal cyst caused when sebum release is blocked from escaping the sebaceous gland It is a collection of keratin-like material, usually white, cheesy, or firm, contain in a cyst wall, which normally appears as a small, nontender lump under the skin Generally benign and left alone unless they are cosmetically unacceptable or if they get infected
61
sebaceous cyst | signs and symptoms
Can occur on any skin surface, but are common on the face, back or base of ears, chest, and back If infected it can be red, swollen, hot, and painful
62
sebaceous cyst | treatment
If infected, it can be treated with antibiotics and then excised when it is not inflamed Otherwise it is often ignored
63
scabies | etiology
Caused by mites which cause extreme nocturnal itching (tunnels and lays eggs)
64
scabies | signs and symptoms
Appear as dark lines between fingers and toes, body flexures, nipples, and genitalia Excoriations, pustules, and papules caused by itching tends to hide true cause Skin develops hypersensitivity to the mite
65
scabies | treatment
Permethrin 5% is treatment of choice Washing of bedding and clothes is necessary Topical corticosteroids may be necessary to treat itching
66
skin carcinomas | etiology
Repeated overexposure to the sun’s ultraviolet ray’s (OR tanning beds) Most common is basal cell carcinomas that arise from the basal cell layer of the epidermis or hair follicles
67
skin carcinomas | signs and symptoms
Lesions may appear any place on body, but more common in sun-exposed areas such as face, neck, back, ears, forearms, and back of hands Both are painless Basal cell carcinoma appear as a smooth, small, waxy nodule that appears translucent Squamous cell carcinoma are characterized by a firm, red nodule with visible scales Both often ulcerate and form a crust
68
skin carcinomas | treatment
``` Complete eradication of the lesion Size, shape, location, and invasiveness will determine the treatment Surgery (90% of cases) Radiation therapy Electrodesiccation Cryosurgery Laser therapy ```
69
malignant melanoma | etiology
Neoplasm composed of abnormal melanocytes appearing in both the epidermis and dermis believed to be caused by overexposure to ultraviolet rays People with fair complexions more at risk
70
malignant melanoma | signs and symptoms
Characterized by lesions having irregular borders and diverse in color Each type has specific characteristics
71
malignant melanoma | treatment
Level of invasion and measure of the melanoma’s thickness will determine the appropriate treatment Surgical excision of the lesion is most common May have to remove nearby lymph nodes Chemotherapy may be recommended