N6637 Acute disorders of the skin and nails|Bulla,
Burrow, Crust, Cyst, Erosion, Excoriation, Fissure, Macule,
Morphology, Nodule, Papule, Pustule, Scale, Ulcer, Urticarial,
Vesicle, Wheal, Ointments, Creams, Lotions, Solutions, Gel,
Acne Vulgaris, Comedone, Isotretinoin, Hidradenitis
Suppurativa, Burns, Dermatitis Medicamentosa, Drug
Eruptions, Cellulitis, Impetigo, Contact Dermatitis, Fungal
Infections, Herpes Zoster, Pityriasis Rosea, Scabies, Paronychia
Exam Questions Verified and Provided with Complete A+
Graded Rationales Latest Updated 2026
Bulla
A blister, is elevation of the skin, similar to a vesicle but larger than 5mm. filled with serous or
serosanguinous fluid
Burrow
a linear thread-like elevation of the skin, typically a few mm long
Crust
yellowish-brown sticky debris consisting of dried serum, scale, and usually bacteria
Cyst
A circumscribed, firm, yet often slightly compressible, spherical lesion, fixed in the dermis
,erosion
a focal loss of a portion of the epidermis, non-scarring
excoriation
a self-inflicted disruption of the epidermis
Fissure
a vertical cut extending into the dermis
macule or macular
a flat colored change less than 1cm
freckle
morphology
shape of the primary lesion
nodule
a solid lesion up to 2cm in diameter with appreciable deep component
papule
an elevated often dome-shaped bump up to 10mm in diameter
, pustule
a circumscribed lesion visible filled with purulent material
scale
surface alteration resulting in a flakey surface, caused by abnormal proliferation or desquamation of the
outermost epidermal layer
ulcer
A loss of skin extending into the dermis that always heals with scarring
urticarial
Adjective describing plaques that are edematous, erythematous, or blanched
vesicle
a blister up to 5mm in diameter filled with serous or serosanguinous fluid
wheal or hive
an erythematous or blanched edematous plaque with no surface change, present for no more than 24
hours
Ointments
Most potent
Not useful in hairy areas
Burrow, Crust, Cyst, Erosion, Excoriation, Fissure, Macule,
Morphology, Nodule, Papule, Pustule, Scale, Ulcer, Urticarial,
Vesicle, Wheal, Ointments, Creams, Lotions, Solutions, Gel,
Acne Vulgaris, Comedone, Isotretinoin, Hidradenitis
Suppurativa, Burns, Dermatitis Medicamentosa, Drug
Eruptions, Cellulitis, Impetigo, Contact Dermatitis, Fungal
Infections, Herpes Zoster, Pityriasis Rosea, Scabies, Paronychia
Exam Questions Verified and Provided with Complete A+
Graded Rationales Latest Updated 2026
Bulla
A blister, is elevation of the skin, similar to a vesicle but larger than 5mm. filled with serous or
serosanguinous fluid
Burrow
a linear thread-like elevation of the skin, typically a few mm long
Crust
yellowish-brown sticky debris consisting of dried serum, scale, and usually bacteria
Cyst
A circumscribed, firm, yet often slightly compressible, spherical lesion, fixed in the dermis
,erosion
a focal loss of a portion of the epidermis, non-scarring
excoriation
a self-inflicted disruption of the epidermis
Fissure
a vertical cut extending into the dermis
macule or macular
a flat colored change less than 1cm
freckle
morphology
shape of the primary lesion
nodule
a solid lesion up to 2cm in diameter with appreciable deep component
papule
an elevated often dome-shaped bump up to 10mm in diameter
, pustule
a circumscribed lesion visible filled with purulent material
scale
surface alteration resulting in a flakey surface, caused by abnormal proliferation or desquamation of the
outermost epidermal layer
ulcer
A loss of skin extending into the dermis that always heals with scarring
urticarial
Adjective describing plaques that are edematous, erythematous, or blanched
vesicle
a blister up to 5mm in diameter filled with serous or serosanguinous fluid
wheal or hive
an erythematous or blanched edematous plaque with no surface change, present for no more than 24
hours
Ointments
Most potent
Not useful in hairy areas
