Dermal Mass – 10/25
Biopsy of this lesion reveals a poorly-defined dermal mass of small blue monomorphic round cells with scant cytoplasm and nuclear molding. Which histologic stain is most helpful in distinguishing this lesion from small cell lung carcinoma?
A. CK20
B. TTF-1
C. Chromogranin
D. Synaptophysin
E. Somatostatin
To find out the correct answer and read the explanation, click here.
Brou …
Biopsy of this lesion reveals a poorly-defined dermal mass of small blue monomorphic round cells with scant cytoplasm and nuclear molding. Which histologic stain is most helpful in distinguishing this lesion from small cell lung carcinoma?
A. CK20
B. TTF-1
C. Chromogranin
D. Synaptophysin
E. Somatostatin
To find out the correct answer and read the explanation, click here.
Brou … 
Match the photo to the plant identified:
A. Poison ivy
B. Gingko
C. Poison oak
D. Mango leaves
E. Poison sumac
To find out the correct answer and read the explanation, click here.
Brought to you by our brand partner Derm In-Review, a product of Sanovaworks.
… 
In this month’s installment of our Therapeutic Cheat Sheet series, we explore a new topical approach to rosacea: ivermectin 1% topical cream (Soolantra). This topical cream is a useful tool for combating rosacea in a multimechanistic way.
Click image to enlarge
Further Reading
Efficacy and Safety of Ivermectin 1% Cream in Treatment of Papulopustular Rosacea: Results … 
A 10-year-old male presents with recurrent crops of hypopigmented macules and crusted papules on the trunk and extremities. What is the hypothesized pathogenesis of this disorder?
A. CD4+ cell infiltrate
B. HHV-6/HHV-7
C. Malassezia
D. Deficiency in vitamin A
E. Preceding streptococcal pharyngitis
To find out the correct answer and read the explanation, click here.
Brought to … 
As dermatologists, we know that not every warm, red, swollen leg represents cellulitis. Chronic venous insufficiency causing stasis dermatitis can present very similarly. While dermatologists are likely able to (in most cases) distinguish between the two conditions, the same cannot always be said of providers outside of our specialty from whom our patients may also be seeking care. Dr. Jeave Reser …