Derm buzz words

Question 1

-polygonal
-flexor surfaces
-Koebnerization
-violet/purple-violaceous
-Wickham striae
-dx: punch bx

Answer 1

Lichen Planus

Question 2

-starts bright red papule
-blue discoloration (necrosis)
-white blanching (vasospasm)
-Bulls eye lesion
-ulceration

Answer 2

Brown recluse spider bite

Question 3

• dark red pruritic urticarial plaques on the flexor surfaces
  -then into tense bullae on the surface of the plaques

Answer 3

Bullous pemphigoid

Question 4

-6 mm, red irregularly shaped, sharply demarcated, eroded lesion
organ donated to pt inc risk

Answer 4

Squamous cell carcinoma

Question 5

• cold-like symptoms about a week before the eruption
  -”herald patch” – large circular salmon-colored patch with a trailing edge of scale
  Around 2 weeks lateR, smaller red papules with scale develop on the trunk along Langer’s lines appearing like a “Christmas tree” on trunk and proximal extremities
  -young adults

Answer 5

Pityriasis rosacea

Question 6

secondary to Pseudomonas aeruginosa
staphylococcal infection
hot tub or swimming 1-4 days ago

Answer 6

folliculitis

Question 7

Depigmentation on face and distal extremties
-pink lesions
-depigmented macules and patches on the dorsal hands, axilla, face, fingers, or genitalia
-check thyroid stimulating hormone

Answer 7

vitiligo

Question 8

topical retinoids

Answer 8

comedonal acne

Question 9

-pearly papule with central ulceration and telangiectasias

Answer 9

Basal cell carcinoma

Question 10

grouped vesicles that are intensely pruritic on the elbows, knees, sacral area, and buttocks.
-Immunofluorescence of a skin biopsy shows IgA deposits.
-tx: dapsone and GF diet

Answer 10

Dermatitis Herpetiformis

Question 11

-think-oral contraceptive use
hyperpigmentation to her face-cheeks.
-light-to-dark brown macules to bilateral upper cheeks
-Family history
► Sun exposure
► Estrogen- pregnancy, IUDs, OCPs
► Thyroid disorders
► Medications
► Scented products- phototoxic reaction

Answer 11

Melasma

Question 12

Koplik spots-white spots in mouth
“3 Cs”: cough, coryza, and conjunctivitis
head to toe Cephalocaudal
-couch may persist 2 weeks
-paramyxovirus
- gray-white, raised lesions on an erythematous base on buccal mucosa(in mouth)
-Exanthematous rash can be on soles and palms
-Maculopapular red blanching rash

Answer 12

measles

Question 13

-slapped cheek
-5th dx
-Myalgias
Facial Rash
-Child is usually still active and playful
-Can return to school when energy levels back
-Parvovirus B19.
Occurs mostly in school aged children
-Transmission: respiratory secretions, blood exposure, vertical transmission from mother to fetus.

Answer 13

Erythema Infectiosum

Question 14

-rubella virus a togavirus
3 day rash. Mild pink, macular, cephalocaudal spread
- more rapid spread
- generalized rash within 24 hours
Does not darken or coalesce
-Mild nonexudative Conjunctivitis
-Soft palate petechiae (Forchheimer sign)
-Children: symptoms 3-8 days, Low grade fever, Lymphadenopathy (postcervical, occipital, postauricular)
-if pregnant birth defects

Answer 14

Rubella (german meseals)

Question 15

-HHV 3
-2-4mm red papule that develops an irregular outline (“rose petal”) with thin-walled clear vesicles appears on the surface (“dew drops”)
-Cluster of vesicles on an erythematous base
-Begins on trunk and spreads to face and extremities
-Prodome-low grade Fever, Malaise, Anorexia, Headache

Answer 15

varicella

Question 16

-reactivated Varicella Virus
Painful, burning, tingling rash
Follows Dermatomal pattern
The rash is usually a single stripe of vesicles

Answer 16

Herpes Zoster (shingles)

Question 17

-HSV 6,7
-High fever (104F)
3-5 days
Rhinorrhea, Cough
Nausea, vomiting, diarrhea
Lymphadenopathy
After Fever: Maculopapular Rash
-Rose-pink macules and/or papules that blanch
- trunk then to face!!!

Answer 17

Roseola (6ths)

Question 18

Reye syndrome

Answer 18

caused by The use of aspirin (salicylates) in children with varicella infection
-a rare but serious condition that causes swelling in the liver and brain.

Question 19

neonatal varicella infection

Answer 19

When a pregnant woman develops varicella in the third trimester, especially within 5 days before to 2 days after delivery
-high risk ,This can be life-threatening for the newborn due to the lack of maternal antibodies and an immature immune system.

Question 20

Pilonidal Disease

Answer 20

rf:Obesity
Prolonged sitting
Hirsutism
Male>Female (3:1)
Young adults, peak 16-20
tx:incision and drainage under local anesthesia
Wound is cleaned (hair and debris removal) and packed with gauze
Antibiotics are necessary only if there is evidence of cellulitis or the patient is immunocompromised

Question 21

chronic, recurrent, painful deep-seated nodules, abscesses, draining sinus tracts and scars.
-Commonly: Axillae and inguinal folds, Sub mammary folds,Perineal area, buttocks, mons pubis, Scalp, postauricular area, Back
-rf: after puberty and more often in females with flare-ups associated with menses
Obesity
Smoking
Tight fitting clothing
Certain autosomal dominant gene mutations
- recurrent nodules, draining sinus tracts, and progressive scarring in typical locations such as the axillae and groin. It significantly impacts quality of life.

Answer 21

Hidradenitis Suppurativa