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Long term follow-up of four patients with Keutel syndrome
H E Khosroshahi1, S C Sahin, Y Akyuz
1Pediatric Cardiology, Department of Pediatrics, Bozok University Medical Faculty, Yozgat, Turkey.
Abstract:
Keutel syndrome (KS) [OMIM 245150] is an autosomal recessive hereditary syndrome characterized by multiple peripheral pulmonary stenoses (PPS), brachytelephalangia, inner ear deafness, and abnormal cartilage ossification or calcification. Mutations in the matrix Gla protein (MGP) gene have been reported in different unrelated families with KS previously. MGP is an extracellular matrix protein and calcification inhibitor; mutations in its encoding gene result in cartilage ossification or calcification, the main presenting feature of KS. This report describes the findings of four sisters with KS born to consanguineous parents were followed for 26 years in an irregular fashion. During follow-up of the patients over the years the complications appear to be mostly involving the respiratory system. Permanent skin rashes, papillary microcarcinoma of the thyroid, asthma, massive bullous pulmonary emphysema, severe systemic arterial hypertension, and short term memory loss were observed during long term follow-up. The fertility status of the patients were also observed and infertility was observed in one of three married patients.
Insights
Keutel syndrome, a rare genetic disorder, involves abnormal cartilage calcification and pulmonary issues. Long-term follow-up revealed respiratory complications and other health problems in affected individuals.
Area of Science:
- Genetics and rare diseases
- Medical research
- Clinical case study
Background:
- Keutel syndrome (KS) is an autosomal recessive disorder.
- It is characterized by peripheral pulmonary stenoses, brachytelephalangia, deafness, and abnormal cartilage ossification.
- Mutations in the matrix Gla protein (MGP) gene are linked to KS, affecting cartilage calcification.
Observation:
- This report details four sisters with KS from a consanguineous family over 26 years.
- Patients experienced various complications, primarily affecting the respiratory system.
- Observed conditions included skin rashes, thyroid carcinoma, asthma, pulmonary emphysema, hypertension, and memory loss.
Findings:
- Long-term follow-up of KS patients revealed significant respiratory complications.
- Additional health issues such as skin rashes, thyroid papillary microcarcinoma, and severe hypertension were noted.
- Infertility was observed in one of the three married patients.
Implications:
- This case study highlights the diverse and progressive nature of Keutel syndrome.
- Understanding long-term complications is crucial for comprehensive patient management.
- Further research into MGP gene function and KS pathogenesis is warranted.
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