Which test is included in limited testing for chronic urticaria?
a. CXR
b. ANA
c. ESR
d. FT4
Ans. C. ESR
Practice guidelines provide clinicians two options if history and physical exam are unrevealing: no laboratory testing or limited testing, which includes complete blood count with assessment for eosinophilia, erythrocyte sedimentation rate, and thyroid-stimulating hormone level. The vast majority of chronic urticaria is associated with no laboratory abnormality.
64 year-old female presents with multiple pruritic and painful vesicles that easily slough off ((+) Nikolsky’s sign) on the face, scalp, back, and torso. What is the expected histopathologic finding for the following lesion?
a. Acantholytic blister formed in suprabasal layer of epidermis
b. Acantholytic blister formed in superficial layer of epidermis
c. Subepidermal blister with eosinophil-rich infiltrate
d. Subepidermal blister with neutrophils in dermal papillae
Answer is A. This is a case of pemphigus vulgaris. This is different from bullous pemphigoid.
Choices:
A - Pemphigus vulgaris
B - Pemphigus foliaceus
C - Bullous pemphigoid
D - Dermatitis herpetiformis
A 27 year-old athlete complains of recurrent rashes in the interdigital spaces of his feet. Wood’s Lamp shows the following finding as shown in the picture:
