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    Catalina Matiz, MD

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    A 7-Year-Old Boy Presents With Dark Spots on His Scalp and Areas of Poor Hair Growth

    Author:
    Catalina Matiz, MD
    Publish date: October 11, 2024

    The scalp shows scale with associate brown papules and areas of alopecia. Trichoscopy reveals corkscrew hairs, back dots, and perifollicular...

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    News

    A 7-Month-Old Female Presented With Nail Changes

    Author:
    Catalina Matiz, MD
    Publish date: August 16, 2024

    The parents reported no history of trauma to the nails.

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    News

    A 7-year-old female presents with persistent pimples on the nose and cheeks for approximately 1 year

    Author:
    Catalina Matiz, MD
    Danny Lee, BA, BS
    Publish date: June 13, 2024

    A 7-year-old female presents with persistent pimples on the nose and cheeks.

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    News

    A 16-Year-Old Female Presents With Multiple Areas of Hair Loss on the Scalp

    Author:
    Catalina Matiz, MD
    Publish date: April 12, 2024

    A 16-year-old female was referred to the dermatology clinic for evaluation of multiple areas of hair loss on the scalp.

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    Quiz

    An 8-Year-Old Male With Asymptomatic Brown Rough Plaques on the Dorsum of the Right Hand and Fingers, Accompanied by Widening of the Knuckles

    Author:
    Catalina Matiz, MD
    Publish date: February 20, 2024

    An 8-year-old boy presents with asymptomatic brown rough plaques on the dorsum of the right hand and several fingers.

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    Opinion

    An 18-month-old male presents with a red mark on the forehead and nose

    Author:
    Catalina Matiz, MD
    Publish date: December 11, 2023

    Dysregulated immune responses leading to endothelial injury, subsequent activation of fibroblasts and myofibroblasts, and excessive collagen...

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    News

    What's the diagnosis?

    Author:
    Catalina Matiz, MD
    Publish date: October 17, 2023

    A teenage girl presents with lesions on her heels.

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    News

    What's the diagnosis?

    Author:
    Catalina Matiz, MD
    Publish date: August 18, 2023

    A 4-month male presents with a rash on the scalp, torso, and diaper area.

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    News

    A 7-year-old male has a bumpy rash on the chin for several months

    Author:
    Catalina Matiz, MD
    Publish date: June 12, 2023

    A 7-year-old male presents with a bumpy rash on the chin present for several months.

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    Opinion

    A 7-month-old male presents with pustules and inflamed papules on the scalp and extremities

    Author:
    Catalina Matiz, MD
    Publish date: April 18, 2023

    A 7-month-old male presents with pustules and inflamed papules on the scalp and extremities.

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    Opinion

    An 11-year-old boy presents with small itchy bumps on the wrists, face, arms, and legs

    Author:
    Catalina Matiz, MD
    Publish date: February 13, 2023

    An 11-year-old boy presents with small, itchy bumps on his face and extremities.

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    Opinion

    A 17-year-old male was referred by his pediatrician for evaluation of a year-long rash

    Author:
    Catalina Matiz, MD
    Publish date: December 13, 2022

    It is very important to make a timely diagnosis and treat the lesions early as it may leave long-lasting dyspigmentation and scarring.

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    Opinion

    An infant with a tender bump on her ear

    Author:
    Catalina Matiz, MD
    Publish date: October 19, 2022

    An infant is referred for a tender bump on her ear.

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    Opinion

    A 9-year-old girl was evaluated for a week-long history of rash on the feet

    Author:
    Catalina Matiz, MD
    Alix Jessika Valderrama, MD
    Publish date: August 16, 2022

    The clinical features are of an erythematous linear serpiginous plaque that is pruritic and can progress from millimeters to centimeters in size...

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    Opinion

    Adolescent female with rash on the arms and posterior legs

    Author:
    Jennifer Laborada
    Catalina Matiz, MD
    Publish date: June 17, 2022

    A 15-year-old otherwise healthy female was evaluated for a rash on the arms and posterior legs that had been present on and off for 6 months.

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