biopsy

Monkey Esophagus – Friday Pop Quiz 5/7
monkey esophagus
by NEXT STEPS IN DERM TEAM on
A biopsy for DIF is negative. IIF is positive for IgG antibodies directed against monkey esophagus. Which of the following is true regarding the diagnosis? A. The primary target antigen is desmoglein 1 B. A positive DIF would show intercellular and linear IgG & C3 along the BMZ C. It is associated with bronchiolitis obliterans D. Autoantibody titers correlate with disease activ …
Patient Buzz: Misdiagnosed Skin Conditions
Differential diagnosis
by Allison Sit on
Women’s Health recently wrote an article about four skin conditions that are commonly misdiagnosed. Why do primary care providers sometimes misdiagnose common skin conditions? What conditions are challenging for dermatologists to diagnose? What steps can a dermatologist take to make a differential diagnosis? For expert advice, I contacted Steve Daveluy, MD, FAAD, associate professor and pr …
Spindle Cells – Friday Pop Quiz 1/10
spindle cells
by NEXT STEPS IN DERM TEAM on
Biopsy of one of the lesions pictured reveals spindle cells forming slit-like vascular channels. Which of the following is also associated with the cause of these lesions? A. Bacillary angiomatosis B. Merkel cell carcinoma C. Angiosarcoma D. Multicentric Castleman disease E. Nasopharyngeal carcinoma To find out the correct answer and read the explanation, click here. Brought t …
Papules – Friday Pop Quiz 7/26
papules pathology
by NEXT STEPS IN DERM TEAM on
A 34-year-old Caucasian female presents for evaluation of several skin-colored papules on the cheeks. She notes her mother and sister have similar findings. A biopsy is done and pathology results are shown below. Which of the following is true about this disorder? A. It is inherited in an X-linked recessive fashion. B. These patients should be referred to nephrology and pulmonology. C …