Category Archives: Image Challenge

Image Challenge of the Week!

A 34-year old woman presents with persistent foreign body sensation in her upper eye lid. She is a contact-wearer. Eversion of the upper eyelid reveals the following:

GPC.PNG
Postepy Dermatol Alergol. 2015 Jun; 32(3): 204–209.

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Image Challenge of the Week!

A 56-year old man presented with sharp abdominal pain and is in acute distress. He has a history of osteoarthritis and takes chronic NSAIDs. Abdominal plain film is shown below. What is the sign shown by the arrow below and the diagnosis it applies?

Telltale triangle sign
N Engl J Med 2010; 362:2410

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Image Challenge of the Week!

Shown below are multiple atypical nevi in a patient. Several of these nevi have asymmetric, have irregular borders, and red-brown color, meeting several of the “ABCDE” criteria commonly used by clinicians to identify nevi suggestive of melanocytic tumors. The black arrow in the image below points to the a lesion that does not meet the “ABCDE” criteria but was nonetheless biopsied and demonstrated melanoma in situ on histologic examination. What clinical rule/heuristic was used to select this nevus for biopsy?

s7j02671.tif
Arch Dermatol. 1998;134(1):103-104.

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