SARAH MICHELLE CRASH COURSE
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Contact dermatitis
- linear distribution, localized
-Treatment: topical steroids
Vesicular lesions
treat within 48-72 hours with antiviral medication.
Chronic ulcerative stomatitis
- autoimmune
- larger in size and number
-weeks-months to resolve
-resistant to topical steroids
-Treatment: Hydroxychloroquine.
Impetigo
-Honey crusted
-Yellow-dry drainage
-usually on face
-Bullous vs. Nonbullies
-Bullous typically MRSA, Treatment is doxycycline
Pityriasis rosacea
"CHRISTMAS TREE" pattern rash (rash on CLEAVAGE lines). "HERALD PATCH" - spreads to back
and abdomen
-usually goes away on own
Brown recluse spider bite
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,- possible white halo
-Systemic symptoms
Erythema Migrans (Lyme disease) and RMSF
- Treatment is doxycycline
-RMSF: North Carolina, tick bite, rash on palms/soles
-3-5 days after symptoms begin
-Lyme disease: "bulls' eyes"/Target lesion
- doxycycline (amoxicillin if pregnant).
Measles (Rubeola)
- kolpiks spots
- fever
-cough, congestion, conjunctivitis
-3-5 days after initial symptoms, rash
- Koplik spots are tiny grains of white sand.
- Give MMR at 12 months to prevent reoccurrence.
Mumps
- parathyroid gland swelling (also seen in bulimia)
- salivary gland stone
Actinic keratosis
- dry, scaly lesions on sun-exposed area
-pink, yellow, tan, pale, brown
-Treatment: topical 5FU, cryotherapy
- precursor to squamous cell carcinoma
Cafe-au lait spots
- hyperpigmentation
-typically, benign
-> 6-8, underlying neurofibromatosis
Intertrigo
- rash present in skin folds
-minimize moisture, antifungal, topical steroids
Malignant melanoma
-asymmetry, border color, diameter > 6mm, evolution
- black/brown spot under nail vs. splinter hemorrhage (endocarditis).
Seborrheic keratosis
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,-"pasted on", older adults
- benign
Basal cell carcinoma
-shiny, waxy, pearly
- telangiectasias present= visible blood vessels across lesion.
- most common type of skin cancer
-Biopsy, refer to dermatology.
Atopic dermatitis (Eczema)
-intensely pruritic, itch, scratch, itch cycle
- located on flexor surfaces (creases)
- 3 A's (atopic dermatitis, asthma, allergies)
- Treatment: emollients, topical steroids
nummular eczema
-high-potency steroids for treatment
-simple, round, arms and legs
-underlying atopic dermatitis
Plaque psoriasis
-Auspitz sign vs. Koebner phenomenon.
- thick, silverly scales that are present
-Treatment: topical steroids, emollients, or coal tar
-Auspitz sign: plaques are scratched, pin-point bleeding
-Koebner phenomenon: Trauma to skin leading to plaques formation.
Shingles
-vesicular, follows a dermatome
-burning, tingling before rash appears
-new pain on one side of the body
-Shingrix at age 50
-Immunocompromised patients > 18 years old
-Treat within 48-72 hours of symptom onset
-Acyclovir is the cheapest antiviral
-Shingles near eyes: refer to ophthalmology (risk for permanent cornea scarring and even
blindness).
Scabies
-intensely pruritic
-everyone in house with similar symptoms
-hands, between fingers
-Treatment: permethrin cream, wash everything with hot water.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Varicella (Chicken pox)
-varying stages of healing lesions
-varicella vaccine: > 12 months old
-return to school when all lesions are crusted over
Head lice (Pediculosis capitis)
-Pediatric, all ages
-incessant of the scalp
-super contagious
-Treatment: permethrin (Nix) (only kills live lice), nits and eggs need to be combed out, child
may require second treatment.
-wash clothing/bedding in hot water.
Mollosum contagiosium
-little indent in middle of lesion, lesion umbilicate or having a dimpling.
-flesh colored
-highly contagious
-found in groin on child, suspect sexual abuse (STI).
-Treatment: usually resolve on own
Anthrax lesion
-may see on a cattle farmer
-ulcerated and black
-lesion is painless
-Treatment: fluroquinolone (if no systemic involvement) = ciprofloxacin, tetracycline as an
alternative.
Hidradenitis suppurativa
-risk factors are smoking and obesity
-recurrent issue
-can lead to nodules, pustules, or even abscesses in the sweat glands
-groin, axilla, thighs, under breasts
-not related to poor hygiene, more linked to genetics
-Treatment: NSAIDs, warm compresses, topical clindamycin. Severe= I&D, wound culture,
antibiotics > 2 weeks.
Folliculitis
-skin infection of hair follicles and surrounding tissue
-usually resolves on own
-Treatment: warm compresses, mupirocin, PCN, cephalexin
Rosacea
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
Contact dermatitis
- linear distribution, localized
-Treatment: topical steroids
Vesicular lesions
treat within 48-72 hours with antiviral medication.
Chronic ulcerative stomatitis
- autoimmune
- larger in size and number
-weeks-months to resolve
-resistant to topical steroids
-Treatment: Hydroxychloroquine.
Impetigo
-Honey crusted
-Yellow-dry drainage
-usually on face
-Bullous vs. Nonbullies
-Bullous typically MRSA, Treatment is doxycycline
Pityriasis rosacea
"CHRISTMAS TREE" pattern rash (rash on CLEAVAGE lines). "HERALD PATCH" - spreads to back
and abdomen
-usually goes away on own
Brown recluse spider bite
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,- possible white halo
-Systemic symptoms
Erythema Migrans (Lyme disease) and RMSF
- Treatment is doxycycline
-RMSF: North Carolina, tick bite, rash on palms/soles
-3-5 days after symptoms begin
-Lyme disease: "bulls' eyes"/Target lesion
- doxycycline (amoxicillin if pregnant).
Measles (Rubeola)
- kolpiks spots
- fever
-cough, congestion, conjunctivitis
-3-5 days after initial symptoms, rash
- Koplik spots are tiny grains of white sand.
- Give MMR at 12 months to prevent reoccurrence.
Mumps
- parathyroid gland swelling (also seen in bulimia)
- salivary gland stone
Actinic keratosis
- dry, scaly lesions on sun-exposed area
-pink, yellow, tan, pale, brown
-Treatment: topical 5FU, cryotherapy
- precursor to squamous cell carcinoma
Cafe-au lait spots
- hyperpigmentation
-typically, benign
-> 6-8, underlying neurofibromatosis
Intertrigo
- rash present in skin folds
-minimize moisture, antifungal, topical steroids
Malignant melanoma
-asymmetry, border color, diameter > 6mm, evolution
- black/brown spot under nail vs. splinter hemorrhage (endocarditis).
Seborrheic keratosis
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,-"pasted on", older adults
- benign
Basal cell carcinoma
-shiny, waxy, pearly
- telangiectasias present= visible blood vessels across lesion.
- most common type of skin cancer
-Biopsy, refer to dermatology.
Atopic dermatitis (Eczema)
-intensely pruritic, itch, scratch, itch cycle
- located on flexor surfaces (creases)
- 3 A's (atopic dermatitis, asthma, allergies)
- Treatment: emollients, topical steroids
nummular eczema
-high-potency steroids for treatment
-simple, round, arms and legs
-underlying atopic dermatitis
Plaque psoriasis
-Auspitz sign vs. Koebner phenomenon.
- thick, silverly scales that are present
-Treatment: topical steroids, emollients, or coal tar
-Auspitz sign: plaques are scratched, pin-point bleeding
-Koebner phenomenon: Trauma to skin leading to plaques formation.
Shingles
-vesicular, follows a dermatome
-burning, tingling before rash appears
-new pain on one side of the body
-Shingrix at age 50
-Immunocompromised patients > 18 years old
-Treat within 48-72 hours of symptom onset
-Acyclovir is the cheapest antiviral
-Shingles near eyes: refer to ophthalmology (risk for permanent cornea scarring and even
blindness).
Scabies
-intensely pruritic
-everyone in house with similar symptoms
-hands, between fingers
-Treatment: permethrin cream, wash everything with hot water.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Varicella (Chicken pox)
-varying stages of healing lesions
-varicella vaccine: > 12 months old
-return to school when all lesions are crusted over
Head lice (Pediculosis capitis)
-Pediatric, all ages
-incessant of the scalp
-super contagious
-Treatment: permethrin (Nix) (only kills live lice), nits and eggs need to be combed out, child
may require second treatment.
-wash clothing/bedding in hot water.
Mollosum contagiosium
-little indent in middle of lesion, lesion umbilicate or having a dimpling.
-flesh colored
-highly contagious
-found in groin on child, suspect sexual abuse (STI).
-Treatment: usually resolve on own
Anthrax lesion
-may see on a cattle farmer
-ulcerated and black
-lesion is painless
-Treatment: fluroquinolone (if no systemic involvement) = ciprofloxacin, tetracycline as an
alternative.
Hidradenitis suppurativa
-risk factors are smoking and obesity
-recurrent issue
-can lead to nodules, pustules, or even abscesses in the sweat glands
-groin, axilla, thighs, under breasts
-not related to poor hygiene, more linked to genetics
-Treatment: NSAIDs, warm compresses, topical clindamycin. Severe= I&D, wound culture,
antibiotics > 2 weeks.
Folliculitis
-skin infection of hair follicles and surrounding tissue
-usually resolves on own
-Treatment: warm compresses, mupirocin, PCN, cephalexin
Rosacea
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
