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Congenital Bilateral Complete Agenesis of the Hallucal Sesamoids: A Case Report
Dingbo Shi1, Aidan E O'Brien1, Jesse D Politowski2
1Department of Radiology, Logan University, Chesterfield, Missouri, U.S.A.
Objective:
The purpose of this case report is to describe a patient with bilateral complete hallucal sesamoidal agenesis.
Clinical Features:
A 23 year-old female presented with left 4th metatarsal head pain that is worse in the morning and prevents her from running. A week later, she had an inversion injury in the right foot while playing flag football.
Interventions And Outcomes:
Radiography incidentally demonstrated bilateral complete absence of osseous hallucal sesamoids with a round, featureless 1st metatarsal head that does not have sesamoidal grooves nor an intersesamoidal crest and later confirmed lack of fibrocartilaginous nodes on ultrasonography.
Conclusion:
Bilateral complete agenesis of the hallucal sesamoids is rare. This study describes a case of asymptomatic congenital bilateral complete agenesis of the hallucal sesamoids visualized on radiography and confirmed with ultrasonography.
