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Make the Diagnosis: Be Careful--Really Careful--With Heating Pads

A 38-year-old woman visited her doctor for discoloration that had developed on her trunk 2 months prior. Can you diagnose the patient

Sep 18, 2023
Image of a rash on a person's back
Make the Diagnosis: It’s a Painless Pink Nodule. How Bad Could It Be?

A 49-year-old woman visited her doctor concerned about a lesion that developed over her right toe within the last 4 weeks. Can you diagnose the patient?

Aug 16, 2023
Image of a big toe with a red crusted wound
Make the Diagnosis: A Man With a Very Painful Knee and a Complex Medical History

A 65-year-old man presented to the doctor with complaints of severe knee pain, decreased range of motion, and a painful skin lesion that developed on his left knee over the past week. Can you diagnose the patient?

Aug 09, 2023
Illustration of a knee with arthritis
Make the Diagnosis: Hyperpigmentation? Psoriasis? Or Something Else?

A 53-year-old man visited his doctor concerned about a spreading rash underneath his arms for the past 3 weeks. Can you diagnose the patient?

Jul 31, 2023
An image of a man's arm and chest with a rash
Make the Diagnosis: A Skin Eruption Is Just One of This Bodybuilder’s Symptoms. What’s Up?

An 18-year-old man visited his doctor with fever, multiple joint pain, and an inflammatory skin condition that had been progressive for the preceding few weeks. Can you diagnose the patient?

Jul 17, 2023
A young man with skin issue on his chest.
Make the Diagnosis: This Cluster of Umbilicated Papules Suggests…?

An 8-year-old-boy was brought to the doctor by his father for evaluation of painless facial lesions that were present for 3 weeks. Can you diagnose the patient?

Jun 26, 2023
Photo of a young boy with facial lesions.
Make the Diagnosis: What Caused this Child’s Knee Lesions?

A mother brought her 7-year-old son to the doctor concerned about asymptomatic lesions that had developed on his knees over the past couple of weeks.

May 24, 2023
Photo of a swollen knee with smooth, crusted and scaly, erythematous and whitish papules and nodules.
Make the Diagnosis: When an 'Innocuous' Ankle Injury Isn’t

A 52-year-old woman presented to the doctor with left anterior ankle pain and foot swelling, decreased range of motion, and gait disturbance that had developed steadily over the past 4-6 weeks. Can you diagnose the patient?

May 08, 2023
Illustration of two legs and feet with ankle swelling
Make the Diagnosis: When the Sun, Physical Exertion, and Medications Team Up Against You

A 58-year-old man visited his doctor concerned about a painful rash that developed over his neck and chest earlier that day.

Apr 24, 2023
A photo of a black person with skin disorder
Make the Diagnosis: Complex Wrist Pain Shucks

A 49-year-old man presented to the doctor with complaints of ulnar-sided wrist pain, joint stiffness, and decreased grip strength that had developed over 2 months.

Apr 12, 2023
X-Ray of a hand
Make the Diagnosis: This Bump on His Nose is a Tricky Diagnosis

A 52-year-old man visited his doctor for a new growth on his nose. Can you diagnosis the patient?

Mar 27, 2023
An image of a man's nose with a bump on it.
Make the Diagnosis: Do Not Blame the Manicurist

A 59-year-old woman visited her doctor concerned about a painful skin lesion near her fingernail that had developed over the past week.

Mar 13, 2023
Image of a hand with a bleeding fingernail
Make the Diagnosis: Why Are These Lumps Here?

A 33-year-old woman went to the doctor after noticing painful lumps on her legs that had developed over the past few days, some of which had begun to drain pus. Can you diagnose the patient?

Feb 23, 2023
A person's arm with furunculosis
Make the Diagnosis: Are These Cutaneous Eruptions Related to Her Landscaping Work?

A 46-year-old, immunocompetent commercial landscaper in Brazil presented to the doctor with an evolving eruption that had developed on her hand and spread to her forearm over the past few weeks. Can you diagnose the patient?

Feb 13, 2023
Person's arm with a rash all over it.
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