What is Keutel Syndrome?

What is the Cause and Mechanism of Cartilage Defects?

The cause is a mutation in the MGP gene (Matrix Gla Protein). This gene produces a protein that is needed to inhibit the abnormal calcification (hardening) of soft cartilage tissue. The defective gene causes soft cartilage in the body to harden prematurely, leading to structural defects. The disorder is inherited in an autosomal recessive pattern.

What Symptoms Define the Condition and What are the Skeletal Issues?

Symptoms define profound structural abnormalities. These include short fingers and toes, nasal deformity (a small, underdeveloped nose), and brachytelephalangism (shortening of the finger bones). The most serious skeletal defect is the abnormal calcification of the rib cartilage, which can restrict the chest cavity and cause breathing difficulties.

How Does This Condition Impact Vision or Eye Health?

Keutel Syndrome can directly impact eye health by causing brachytelephalangism (short fingers and toes) and other severe skeletal defects. Patients may have abnormal development of the nasal structure, leading to tear duct obstruction and chronic, excessive tearing (epiphora). The condition does not typically affect the visual acuity itself.

Diagnostic Procedures

Diagnosis is usually made at birth or in infancy based on the characteristic skeletal abnormalities. X-rays are used to confirm the widespread calcification of cartilage and the bone defects. Genetic testing confirms the mutation in the MGP gene.

What are the Necessary Treatment Strategies?

Necessary treatment strategies focus on managing orthopedic and respiratory problems. Surgical intervention is sometimes needed to correct structural defects in the hands or feet. Physical therapy is used to maximize joint function. For chronic tearing, an ophthalmologist may perform a procedure to clear the tear duct blockage.