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Chondromyxoid Fibroma of the Finger

Hwang, So-Min ; Cho, Ka-Hyung ; Kim, Hyung-Do ; Jung, Yong-Hui ; Kim, Hong-Il

Archives of Plastic Surgery, 2014, Vol.41(3), p.302-304 [Periódico revisado por pares]

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  • Título:
    Chondromyxoid Fibroma of the Finger
  • Autor: Hwang, So-Min ; Cho, Ka-Hyung ; Kim, Hyung-Do ; Jung, Yong-Hui ; Kim, Hong-Il
  • Assuntos: Images
  • É parte de: Archives of Plastic Surgery, 2014, Vol.41(3), p.302-304
  • Descrição: A 35-year-old man visited us with a chief complaint of painful swelling of the finger. A physical examination revealed a palpable mass, measuring approximately 2 cm×1 cm, on the dorsoradial side of the base of the middle phalanx of the right index finger (Fig. 1A). Upon history taking, we found that the mass had formed 7 to 8 years before and had since grown slowly. The mass had a firm, hard, discrete, and immobile consistency. An X-ray revealed a translucent, osteolytic lesion at the base of the middle phalanx; this lesion was eccentrically located to the cortex (Fig. 1B). The lesion was a mass with an ovoid shape and was parallel to the long axis of the bone; it had a slightly marginal sclerotic border. Moreover, it exhibited expansile growth to the adjacent soft tissue on the dorsoradial side. On the basis of these findings, we made a 2-cm straight, longitudinal incision on the radial side of the dorsum of the middle phalanx, thus confirming the presence of a bulging well-circumscribed cartilaginous-appearing mass (Fig. 2A). We performed an extensive, aggressive curettage of the lesion. The resulting bony defect was filled using iliac bone graft and screw fixation. In the resected specimen, there was a yellowish-white lobulated mass of 2 cm×1 cm×1 cm in size (Fig. 2B). On histopathological examination the mass mainly had a myxomatous appearance and was characterized by the lobular arrangement of stellate or spindle-shaped cells. The lobule was well circumscribed by fine fibrous septa and was composed of the central hypocellular area and the peripheral hypercellular area (Fig. 3). On the basis of these findings, we established a diagnosis of chondromyxoid fibroma (CMF). In the 15-month postoperative follow-up, the patient underwent an uneventful course without recurrent or metastatic episodes.

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