Christopher Rizk, MD

Christopher Rizk, MD

Contributing Writer
Christopher Rizk, MD, is a contributor to the dermatological section of Haymarket Medical Network. He holds a BA in biochemistry and cell biology from Rice University, along with an MD from Baylor College of Medicine. After receiving his medical degree, Christopher completed his dermatology residency at Baylor College of Medicine in Houston, Texas.

All articles by Christopher Rizk, MD

Nodules on the Arm and Leg

Case 1 A 67-year-old man presents with 2 nodules on his elbow. He has never had any skin conditions but 2 years previously was diagnosed with rheumatoid arthritis, which he manages with methotrexate and nonsteroidal anti-inflammatory drugs. The nodules are uncomfortable and aesthetically displeasing, but they are not painful. On examination, 2 large, firm, skin-colored…

Lower Extremity Swelling and Rash

Case 1 A 58-year-old obese African American man with congestive heart failure presents with swelling and lesions on his lower extremities. He first noticed the swelling 2 years earlier, and several painless, wart-like lesions have developed over the past few months. He reports having had a few skin infections in the same region for which…

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