Can you diagnose this boy with painful nodules on his feet?

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The photos in this case were taken soon after the painful and red papules appeared.

Image credit: Author provided

Image credit: Author provided

Welcome to this Contemporary Pediatrics poll. Take a look at the following case below. After reading through the description, choose a multiple choice answer and try to guess the correct patient diagnosis.

Then, come back to ContemporaryPediatrics.com on Monday, January 6 at 12:00 PM ET for the full case presentation, differential diagnoses, and the correct patient diagnosis.

Image credit: Author provided

Image credit: Author provided

This case was provided by Amar Davé, MD, FAAP and Pahroul Davé, APRN.

The case:

A boy aged 10 years presented to the outpatient office with a history of painful nodules on the plantar surface of his bilateral feet 8 to 10 hours after spending time in a hot tub. He was unable to bear weight or put on socks and shoes due to his pain. The photos were taken soon after the painful and red papules appeared. The lesions affected the whole plantar aspect of both feet. Over the following 4 days, the nodules became less painful and red.

Medical advice was sought on the fifth day of symptoms, and by this time, the child was improving clinically. He was stable with subcutaneous, mildly painful, fleshy nodules mostly populating the medial arch of the foot. His remaining clinical examination results were within a normal range. Further questioning of the child’s mother revealed that other children exposed to the hot tub experienced painful feet but without lesions.

Due to the patient’s improving symptoms and the self-limiting nature of the illness, no tests or labs were ordered as the child was not acutely ill. No peer consultations or specialists were utilized.

Image credit: Author provided

Image credit: Author provided

What is the diagnosis of this case?

Erythema nodosum
Pseudomonas aeruginosa
Palmoplantar hidradenitis
Suppurative panniculitis

Click here for the full case presentation, differential diagnoses, and the correct patient diagnosis, in a separate article.

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