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PubMed This is a summary of 56 peer-reviewed journal articles Updated
Pediatrics · Macrodactyly

Navigating Macrodactyly: A Guide for Parents

At a Glance

Macrodactyly is a rare, congenital condition causing abnormally large fingers or toes, often linked to the PROS genetic spectrum. It is not caused by anything done during pregnancy. Care focuses on maximizing function through staged surgeries and targeted medical therapies as your child grows.

Welcome. Hearing that your child has macrodactyly—a rare congenital condition causing abnormally large fingers or toes—can feel overwhelming. You are likely navigating unfamiliar medical terms, processing a lot of emotions, and wondering what the future holds for your child.

This guide was created to help you understand your child’s diagnosis, prepare for the journey ahead, and advocate effectively for their care. Macrodactyly is not a result of anything you did or didn’t do during pregnancy. It is a localized condition often driven by genetics, and today, medical science understands more about how it works than ever before [1].

This resource is broken down into four key areas:

01

Understanding Macrodactyly: Biology and Diagnosis

Learn about the biology and diagnosis of macrodactyly. Understand PIK3CA gene mutations, MRI results for FLH, genetic testing, and what to ask your doctor.

02

Surgical Treatment Strategies for Macrodactyly

Learn about surgical treatment options for macrodactyly in children. Understand debulking, epiphysiodesis, ray resection, and long-term functional goals.

03

Medical Therapies and the PROS Connection

Learn about targeted medical therapies for macrodactyly and PROS, including Alpelisib and Sirolimus. Understand side effects, eligibility, and management.

04

Long-Term Outlook, Team Building, and Survivorship

Learn about the long-term outlook for macrodactyly of the fingers. Discover how to build a care team, monitor for complications, and support your child.

Take this one step at a time. The goal is to inform and empower you to partner with your medical team, always prioritizing your child’s function and quality of life.

Common questions in this guide

What causes macrodactyly in children?
Macrodactyly is a localized condition often driven by genetics, specifically related to the PROS spectrum. It is a congenital condition, meaning a child is born with it, and it is not caused by anything a parent did or did not do during pregnancy.
Will my child need genetic testing for macrodactyly?
Your doctor may recommend genetic testing and specific tissue testing to confirm if the condition is part of the PROS spectrum. Understanding the exact genetic driver helps your medical team determine if your child qualifies for emerging targeted medications.
How is macrodactyly treated?
Treatment usually involves a combination of surgical procedures spaced out over your child's growth period and specialized medical therapies. The primary goal of any intervention is to prioritize your child's long-term hand function and overall quality of life over physical appearance.
Who should be on my child's macrodactyly care team?
Because macrodactyly is complex, your child will need a multidisciplinary care team. It is highly recommended to establish a lead coordinator, or 'quarterback,' such as a pediatric hand surgeon or geneticist, to guide the treatment steps and monitor for milestones and complications.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Does my child's presentation warrant genetic testing to confirm a PROS diagnosis?
  2. 2.Who will act as the 'quarterback' or lead coordinator for my child's multidisciplinary team?
  3. 3.What are the first three steps we need to take in the coming weeks?
  4. 4.Are there specific physical activities or milestones we should monitor closely right now?

Questions For You

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References

References (1)
  1. 1

    An Analysis of the Pathogenic Genes and Mutation Sites of Macrodactyly.

    Li JF, Tian GL, Pan H, et al.

    Pharmacogenomics and personalized medicine 2022; (15()):55-64 doi:10.2147/PGPM.S346373.

    PMID: 35125881

This guide on macrodactyly is for educational purposes only and does not replace professional medical advice. Always consult your child's pediatrician, surgeon, or geneticist for specific medical guidance and treatment planning.

Get notified when new evidence is published on Macrodactyly of fingers.

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