Emmalee had her 1 year follow-up with her geneticist today.
Things we know:
1. She is a carrier of Myotonic Dystrophy
(A healthy individual can have up to 34 Gene repeats. Patients who have 38-50 repeats are said to have a “pre-mutation” and can be asymptomatic throughout their lifetime. However, they are at increased risk of having children with larger repeats. Patients with 75-11,000 repeats either have late onset myotonic dystrophy Type 1 or Type 2 meaning they are born with it. Emmalee has 69 repeats and falls within the “grey area.” Hers will more than likely present itself progressively as she gets older. Her symptoms are all over muscle weakness and Hypotonia. Her symptoms could remain as they are or progress as she ages. Type 2 is more rare than Type 1 and happens in 1 in 8,000 patients.
2. She has a mutation on her DPF2 Gene. This gene is associated with a rare genetic disorder called Coffin-Siris Syndrome. Symptoms that present in Emmalee are:
Feeding difficulties/disorder/oral dysphasia/failure to thrive.
Metabolism difficulties. Hyper Carotenemia.
Low motility of organs associated with digestive tract.
Frequent respiratory infections
Diminished muscle tone (hypotonia).
Abnormal looseness (laxity) of the joints.
Delayed bone age.
Developmental delays.
Intellectual disability or speech delay
Gastric abnormalities which may include one portion of the bowel sliding into the next like a telescope.(intussusception)
Mutations in DPF2 have also recently been described in individuals with a “Coffin-Siris like” phenotype. Researchers believe the disease can be transmitted genetically as an autosomal dominant trait but most cases appear to be the result of a “new mutation.”
We are working to find more answers. We need a test called “Full/Whole Exome” that insurance has denied several times. With this updated appointment, recommendations and information, we are hoping they will reconsider to help us get answers to better support Emmalee.
We may never have the answers. Our goal right now is to manage these symptoms. We have an urgent referral for a GI specialist to get help with her feeding challenges.















































