Bilateral absence of patella.

Area of Science:

• Orthopedics
• Medical Genetics
• Rare Diseases

Background:

• Congenital skeletal abnormalities present a diagnostic challenge.
• Aplastic patella syndromes are rare conditions affecting knee development.
• Understanding variations in skeletal development is crucial for diagnosis.

Observation:

• A 20-year-old male presented with bilateral absence of the patella.
• The patient also exhibited thinning of the left femoral neck and abnormalities in the femoral and tibial shafts.
• This specific constellation of symptoms is novel in medical literature.

Findings:

• The reported case presents a unique combination of patellar agenesis with long bone abnormalities.
• This presentation differs from previously documented cases of aplastic patella syndromes.
• The findings suggest a potentially new syndrome or a significant variant.

Implications:

• This case expands the known spectrum of patellofemoral developmental disorders.
• Further research is needed to classify this presentation and understand its etiology.
• Recognition of this distinct phenotype aids in diagnosing and managing similar rare skeletal conditions.