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  • Elizabeth Carreno Rijo, MD

    Elizabeth Carreño Rijo, MD, MPH, is a board-certified adolescent medicine physician with Orlando Health Arnold Palmer Hospital for Children. She cares for children between the ages of 11 and 25 and helps them transition from pediatric to adult care. Dr. Carreño Rijo has a particular interest in reproductive health, eating disorders and promoting healthy decision-making and positive lifestyle choices.

  • Marc Underhill, MD

    Dr. Marc Underhill is a board-certified and fellowship-trained vascular and interventional radiologist with Orlando Health Medical Group Radiology. He has been working as a radiologist and teaching medical residents for the past decade. As both an interventional and diagnostic radiologist, Dr. Underhill can capture and interpret medical images and perform minimally invasive procedures using those images as a guide. His skills include:

  • Marisa Bennardo, APRN

    Marisa Bennardo is a pediatric nurse practitioner with the Haley Center for Children’s Cancer and Blood Disorders at Orlando Health Arnold Palmer Hospital for Children. She specializes in pediatric hematology, caring for children with bleeding and clotting disorders such as hemophilia and von Willebrand disease.

  • Alaina Cory, APRN

    Alaina Cory, MSN, APRN, CPNP-AC, is a board-certified pediatric nurse practitioner with the Haley Center for Children’s Cancer and Blood Disorders at Orlando Health Arnold Palmer Hospital for Children. She is responsible for the management and care coordination of outpatient pediatric oncology and hematology patients with cancer, including leukemia, lymphoma, and brain, bone and solid tumors. She also provides care for bleeding disorders and diseases of the blood cells, including disorders of white cells, red cells and platelets.

  • Jamie Crenshaw, APRN

    Jamie Crenshaw is a certified pediatric primary care nurse practitioner (CPNP-PC) at Orlando Health Arnold Palmer Hospital for Children. As a hospitalist, she sees pediatric patients in the hospital and helps coordinate their care with specialty physicians.

  • Glenda Martinez, APRN

    Glenda Lee Martinez is an advanced practice registered nurse (APRN) at Orlando Health Arnold Palmer Hospital for Children Hewell Kids Kidney Center, specializing in outpatient pediatric nephrology. Her areas of expertise include:

  • Let's give children's teeth a biting chance!

    Written by Ha Vo, pediatric resident at Arnold Palmer Hospital for Children

  • A survivor of childhood cancer, 25 years later: Nessa’s story

    Twenty-five years ago in September of 1988, Nessa’s life was forever changed by words that weren’t talked about much back then: childhood cancer. After finding bumps on Nessa’s head and swollen lymph nodes, her mom knew something wasn’t right. After a trip to the pediatrician’s office, they were told to go to Orlando Regional Medical Center (ORMC) to see Dr. Vincent Guisti, a pediatric oncologist, to find out what might be causing these symptoms. Since the visit required an overnight bag, Nessa’s mom, Carol, knew it wasn’t what she’d first suspected – it was something much more serious.

    Receiving a heart-wrenching diagnosis

    Nessa was eight years old and in the third grade at a local elementary school. That day was picture day- a day that many girls prepare for by selecting their best school outfit and making sure their hair looks just right. As her mom was combing Nessa’s hair, she noticed little bumps on her head, and Nessa had been saying she wasn’t feeling well. The next morning, Carol knew something wasn’t right after Nessa woke up with swollen lymph nodes. Thinking it might be a case of mononucleosis, they visited the family’s pediatrician, where they were told to go to ORMC to see Dr. Guisti, a pediatric oncologist.

  • Pediatric Cleft Lip and Palate Surgery Program

    Our Pediatric Craniofacial team provides evaluation and treatment for patients who need Cleft Lip and Palate Surgery

  • What we do now may affect our future children’s genetics

    We are all aware that mothers who smoke while they are pregnant run a higher risk of having children who are premature, smaller than they should be, or stillborn. This is likely due to reduced oxygen supply to the baby through mom’s diseased body and to toxins shared by mom with baby. We also know that children who are exposed to second-hand smoke have a higher risk of developing respiratory diseases like asthma, chronic lung disease and even cancer due to direct lung damage from inhaled smoke.

    What you do with your body early in life can affect future generations

    But recent data suggests that a father’s behavior even years prior to conception may affect the health of his children and future generations. For example, early paternal smoking has been associated with increased body mass in children. Paternal alcoholism has been associated with smaller birth weights in babies, and hyperactivity in children. Most recently, smoking even early in life has been found to be associated with an increased risk of certain forms of asthma in a man’s children. A study which was recently presented at the European Respiratory Society International Congress looked at 13,000 men and women and found that non-allergic asthma was significantly more common in children whose fathers smoked before the age of 15. In addition, the longer the father smoked, the higher the risk of his child having this kind of asthma. Interestingly, the same link was not found in children whose mothers smoked before they conceived.