Pectus Arcuatum: A Pectus Unlike Any Other.

Area of Science:

• Thoracic surgery
• Pediatric orthopedics
• Medical imaging

Background:

• Pectus arcuatum is a unique chest wall deformity caused by premature fusion of sternal ossification centers.
• It is frequently misdiagnosed as pectus carinatum, which results from abnormal costal cartilage growth.
• Understanding the distinct etiology of pectus arcuatum is crucial for accurate diagnosis and management.

Purpose of the Study:

• To delineate the clinical characteristics of pectus arcuatum.
• To identify associated malformations and family history in affected individuals.
• To evaluate the effectiveness of different treatment modalities for pectus arcuatum.

Main Methods:

• A multicenter retrospective study analyzed patient files diagnosed with pectus arcuatum.
• Diagnostic imaging, including chest X-ray and CT scans, was reviewed.
• Patient demographics, clinical findings, associated conditions, and treatment outcomes were assessed.

Main Results:

• Thirty-four patients with pectus arcuatum were identified, with a mean age of 10.3 years at diagnosis.
• Sternal fusion was confirmed by imaging in 47% of cases.
• Associated malformations (e.g., Noonan syndrome, scoliosis, cardiopathy) were present in 35% of patients; 32% had a family history of skeletal malformation.

Conclusions:

• Pectus arcuatum diagnosis relies on clinical assessment and imaging confirming sternal fusion.
• Associated musculoskeletal, cardiac, and syndromic malformations require thorough investigation.
• Bracing is ineffective; surgical correction, involving sternotomy and chondro-costal resection, is recommended post-growth.