Dermatology Exam I
-exam elaborations with 100% verified answer/solutions-
Excel & Succeed - academic year (2026-2027)
201 Q&A
Folliculitis
Infection or irritation of the hair follicles, commonly caused by Staph aureus
Shaving/plucking
What is the most common cause/risk factor of developing folliculitis?
Sycosis
Severe, deep-seated, recalcitrant folliculitis or tine affecting the entire shaft of
the hair follicle. Almost always related to shaving/haircutting
Abscess
Localized inflammation with purulent material in cavity. Tender, erythematous,
fluctuant mass. Most commonly found on axilla, perirectal, buttocks, head and
neck
Furuncle
Deep-seated folliculitis with a single head, 1-2 cm, red tender nodule
Carbuncle
,Deep-seated folliculitis with multiple heads of interconnecting abscesses
Cellulitis
Carbuncles are commonly seen along with ____ due to infection spread
Ecthyma gangrenosum
Rare, cutaneous manifestation of pseudomonas septicemia. Begins as an
erythematous/hemorrhagic macule and proceeds to necrotic erosion with
erythematous halo
Pseudomonas septicemia
Ecthyma gangrenosum is a rare, cutaneous manifestation of _____
Pyoderma gangrenosum
Rare skin disorder of unknown etiology. Begins with tender, erythematous
vesicles. Vesicles then become dusky red/indurated. Necrotizing spreading
border leads to ulcers with a purulent base and purple-red margin
Cribriform scarring
Patients with pyoderma gangrenosum develop ____ scarring
Pyoderma gangrenosum
Cribriform scarring is associated with what skin condition?
IBD (ulcerative colitis, Crohn's)
RA
Chronic active hepatitis
What are some systemic conditions commonly associated with pyoderma
gangrenosum?
High dose systemic steroids and cyclosporine. Improvement in 3 weeks
What is the treatment for pyoderma gangrenosum?
Cellulitis
, Acute spreading infection of dermal and subcutaneous tissue with slightly less
well-defined edges. Erythematous, tender edematous area, warm to touch.
Well-defined, but irregular borders
Adults - lower extremities
Kids - face/neck
What is the MC part of the body affected by cellulitis in adults? Children?
Annular
Ring-shaped lesion
Guttate
Drop-like skin lesion
Targetoid lesion (iris)
Lesion that looks like a circle within a circle
Erythema multiforme
What is an example of a targetoid lesion?
Zosteriform
Linear shape of skin lesion along a nerve route
Arciform
Lesion shaped like an arc, or half-moon
Gyrate
Twisted spiral lesion
5.5 months
How long does it take a fingernail to grow from matrix to free edge?
12-18 months
How long does it take for a toenail to grow from matrix to free edge?
Macule
-exam elaborations with 100% verified answer/solutions-
Excel & Succeed - academic year (2026-2027)
201 Q&A
Folliculitis
Infection or irritation of the hair follicles, commonly caused by Staph aureus
Shaving/plucking
What is the most common cause/risk factor of developing folliculitis?
Sycosis
Severe, deep-seated, recalcitrant folliculitis or tine affecting the entire shaft of
the hair follicle. Almost always related to shaving/haircutting
Abscess
Localized inflammation with purulent material in cavity. Tender, erythematous,
fluctuant mass. Most commonly found on axilla, perirectal, buttocks, head and
neck
Furuncle
Deep-seated folliculitis with a single head, 1-2 cm, red tender nodule
Carbuncle
,Deep-seated folliculitis with multiple heads of interconnecting abscesses
Cellulitis
Carbuncles are commonly seen along with ____ due to infection spread
Ecthyma gangrenosum
Rare, cutaneous manifestation of pseudomonas septicemia. Begins as an
erythematous/hemorrhagic macule and proceeds to necrotic erosion with
erythematous halo
Pseudomonas septicemia
Ecthyma gangrenosum is a rare, cutaneous manifestation of _____
Pyoderma gangrenosum
Rare skin disorder of unknown etiology. Begins with tender, erythematous
vesicles. Vesicles then become dusky red/indurated. Necrotizing spreading
border leads to ulcers with a purulent base and purple-red margin
Cribriform scarring
Patients with pyoderma gangrenosum develop ____ scarring
Pyoderma gangrenosum
Cribriform scarring is associated with what skin condition?
IBD (ulcerative colitis, Crohn's)
RA
Chronic active hepatitis
What are some systemic conditions commonly associated with pyoderma
gangrenosum?
High dose systemic steroids and cyclosporine. Improvement in 3 weeks
What is the treatment for pyoderma gangrenosum?
Cellulitis
, Acute spreading infection of dermal and subcutaneous tissue with slightly less
well-defined edges. Erythematous, tender edematous area, warm to touch.
Well-defined, but irregular borders
Adults - lower extremities
Kids - face/neck
What is the MC part of the body affected by cellulitis in adults? Children?
Annular
Ring-shaped lesion
Guttate
Drop-like skin lesion
Targetoid lesion (iris)
Lesion that looks like a circle within a circle
Erythema multiforme
What is an example of a targetoid lesion?
Zosteriform
Linear shape of skin lesion along a nerve route
Arciform
Lesion shaped like an arc, or half-moon
Gyrate
Twisted spiral lesion
5.5 months
How long does it take a fingernail to grow from matrix to free edge?
12-18 months
How long does it take for a toenail to grow from matrix to free edge?
Macule
