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Dermatology Hot Topics

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Authors

Opioid prescribing is rarely straightforward. The well respected Opioid Calculator from colleagues "down under" has simplification and safety built in. 

Opioid Calculator by FPM ANZCA: App Review 

The rash on this man's hands and the red scaly lesions on his trunk are consistent with erythema annulare centrifugum (EAC).

A) EAC is thought to represent a reactive process or antigenic “hypersensitivity” reaction. 

B) Although  often idiopathic, EAC has been associated with dermatophytosis.

C) Other reported associations include infectious agents, chronic diseases, and malignancy. 

D) EAC is often self-limited, but can be chronic and relapsing.

How much do you know about erythema annulare centrifugum?

Clinical Topics

Painful Fissures on Both Hands  

This 13-year-old boy presents with hyperpigmented skin on his neck. He is 66.75 inches and weighs 232 pounds.

This 13-year-old boy presents with hyperpigmented skin on his neck. He is 66.75 inches and weighs 232 pounds. Your suspicion?

13-year-old With Hyperpigmented Rash

A 9-year-old boy presented with a 1-week history of pruritus and rash on his elbows, knees, back, and legs. Several areas of excoriation were noted. He had recently run through a field of tall grass but denied any other exposure history.

A 9-year-old boy presented with a 1-week history of pruritus and rash on his elbows, knees, back, and legs. He had recently run through a field of tall grass but denied any other exposure history. Your Dx?

What Cause of This Itchy Rash?


This intensely itchy, blistering rash on the forearms and upper chest of a 13-year-old girl occurred after a day at the beach. The girl had polymorphic light eruption (PMLE), the most common abnormal reaction to UV light.

A. PMLE classically presents as a papular or papulovesicular eruption on the arms and anterior chest

B. The reaction usually begins 12 to 24 hours after an initial exposure to light of a suddenly increased intensity

C. Some parts of the body are severely involved while similarly exposed areas are paradoxically spared

D. The rash resolves after 7 to 10 days, often leaving whitish scarring

What are the characteristics of this blistering rash caused by exposure to UV light? 

Intensely Pruritic Rash After Sun Exposure in a Tween Girl 

A 68-year-old man presented with two growths on his chest, which he said had been slowly expanding over the past 2 years. They were occasionally tender and had bled with minimal trauma.

Can you identify the 2 slowly expanding growths on the chest of this 68-year-old man?

Pearly Pink Chest Lesions 


These 2 patients presented with a swollen hand and rapidly proximally progressive edema secondary to a bite.

These 2 patients presented with a swollen hand and rapidly proximally progressive edema secondary to a bite. What creature did the biting?

Swollen Hands-What’s Biting?

Ted W. James, MD

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