Ayala GU, Miravete GA, Gallegos TAG, Pineda DJ

Language: Spanish
References: 16
Page: 51-56
PDF size: 1306.48 Kb.

ABSTRACT

Aneurismatic bone cysts are rare benign tumors that represent about 9% of bone tumors. Only 3 to 5% involve the hands, of these 52% involve metacarpal bones and 36% involve phalanxes. We present the case of a 52 years old woman who suffered six months prior to her hospitalization a hand contusion to the left ring finger, causing insidious pain of 2/10 in the VAS pain. On physical examination, we found proximal and distal interphalangeal joints hiperflexion of the left ring finger with mild pain at extension, full motion arcs of the uninvolved fingers, and no neurovascular affection. X rays showed a radiolucid image in the medullar cavity of the middle phalanx of the left ring finger, with expansive borders and evident thinning of the cortical layers. We decided to perform a surgical resection of the lesion and sent the collected material to the surgical pathology department, which diagnosed an aneurismatic bone cyst. The cyst recurred two years after first procedure. We decided to perform whole phalanx resection and reconstruction with bone autograph with arthrodesis proximally and distally. It is important to report such cases and update its diagnostic tools and treatment because of its low incidence, and clinicians should be aware of this and other differential diagnosis that must be accurately identified, since its treatment differs importantly and a misdiagnose may cause recurrence of such lesions and multiple surgical interventions that undermine the patient’s quality of life.

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