Scholarlink

Background <p>Metatarsal coalition is an extremely rare congenital anomaly. Its complication with pseudarthrosis is even more exceptional and may present as a palpable dorsal mass or chronic pain, often mimicking a bone tumor. Awareness of this condition is essential for accurate diagnosis and to avoid unnecessary biopsies or overtreatment.</p> Case presentation <p>We report two cases of metatarsal coalition complicated by pseudarthrosis. The first case involved a 25-year-old woman with a 7-year history of a mildly painful dorsal foot mass. Imaging revealed a coalition between the first and second metatarsals, along with pseudarthrosis formation. The second case involved a 54-year-old man with long-standing dorsal foot pain due to coalition between the third and fourth metatarsals. Both patients underwent surgical excision, and histopathology confirmed fibro-osseous pseudarthrosis. Postoperative recovery was uneventful, with complete resolution of symptoms. During clinical follow-up at 41 and 21&#xa0;months, respectively, no signs of recurrence were observed.</p> Conclusions <p>These cases highlight an uncommon presentation of metatarsal coalition mimicking bone neoplasms. Timely recognition and appropriate diagnostic workup are critical to avoid misdiagnosis and unnecessary intervention.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Metatarsal coalition with pseudarthrosis mimicking bone tumor: two case reports and literature review

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月14日

查看全文
  • Dongping Yu,
  • Zhen Li

摘要

Background

Metatarsal coalition is an extremely rare congenital anomaly. Its complication with pseudarthrosis is even more exceptional and may present as a palpable dorsal mass or chronic pain, often mimicking a bone tumor. Awareness of this condition is essential for accurate diagnosis and to avoid unnecessary biopsies or overtreatment.

Case presentation

We report two cases of metatarsal coalition complicated by pseudarthrosis. The first case involved a 25-year-old woman with a 7-year history of a mildly painful dorsal foot mass. Imaging revealed a coalition between the first and second metatarsals, along with pseudarthrosis formation. The second case involved a 54-year-old man with long-standing dorsal foot pain due to coalition between the third and fourth metatarsals. Both patients underwent surgical excision, and histopathology confirmed fibro-osseous pseudarthrosis. Postoperative recovery was uneventful, with complete resolution of symptoms. During clinical follow-up at 41 and 21 months, respectively, no signs of recurrence were observed.

Conclusions

These cases highlight an uncommon presentation of metatarsal coalition mimicking bone neoplasms. Timely recognition and appropriate diagnostic workup are critical to avoid misdiagnosis and unnecessary intervention.