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Background <p>Rhinolithiasis is a rare condition caused by deposition of mineral salts around a foreign body, typically presenting as unilateral nasal obstruction. Large rhinoliths can mimic other nasal masses, such as osteomas, making diagnosis challenging.</p> Case presentation <p>We report the case of a 27-year-old man with a 4-year history of persistent unilateral nasal obstruction. Nasal endoscopy revealed a large, whitish, bone-like mass occupying the entire left nasal cavity. CT imaging showed a calcified mass suggestive of an osteoma. Endonasal endoscopic surgery revealed the mass to be a giant rhinolith formed around a neglected piece of rubber. The mass was fragmented and completely removed without complications.</p> Discussion <p>This case highlights the diagnostic challenge of rhinolithiasis mimicking bony tumors. It underscores the importance of thorough clinical questioning regarding foreign body insertion, even from childhood, and the role of endoscopy and CT in distinguishing rhinoliths from other nasal masses.</p> Conclusion <p>Rhinolithiasis, though rare, should be considered in the differential diagnosis of calcified nasal masses, particularly when imaging suggests a bony lesion. Early diagnosis and endoscopic removal can prevent complications and improve patient outcomes.</p>

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Giant rhinolithiasis formed around a huge neglected nasal piece of rubber, mimicking an osteoma: a case report

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月10日

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  • Omar Oulghoul,
  • Mohammed Rami,
  • Mohamed Chehbouni,
  • Youssef Lakhdar,
  • Hamza Benjelloun,
  • Youssef Rochdi,
  • Abdelaziz Raji

摘要

Background

Rhinolithiasis is a rare condition caused by deposition of mineral salts around a foreign body, typically presenting as unilateral nasal obstruction. Large rhinoliths can mimic other nasal masses, such as osteomas, making diagnosis challenging.

Case presentation

We report the case of a 27-year-old man with a 4-year history of persistent unilateral nasal obstruction. Nasal endoscopy revealed a large, whitish, bone-like mass occupying the entire left nasal cavity. CT imaging showed a calcified mass suggestive of an osteoma. Endonasal endoscopic surgery revealed the mass to be a giant rhinolith formed around a neglected piece of rubber. The mass was fragmented and completely removed without complications.

Discussion

This case highlights the diagnostic challenge of rhinolithiasis mimicking bony tumors. It underscores the importance of thorough clinical questioning regarding foreign body insertion, even from childhood, and the role of endoscopy and CT in distinguishing rhinoliths from other nasal masses.

Conclusion

Rhinolithiasis, though rare, should be considered in the differential diagnosis of calcified nasal masses, particularly when imaging suggests a bony lesion. Early diagnosis and endoscopic removal can prevent complications and improve patient outcomes.