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Related Experiment Videos

Sinolith in the ethmoid sinus.

S Kanzaki1, Michiie Sakamoto

  • 1Department of Otorhinolaryngology, Tokyo Electrical Power Company Hospital, Tokyo, Japan. skan@sc.itc.keio.ac.jp

The Journal of Laryngology and Otology
|August 19, 2006
PubMed
Summary

A rare sinolith, a calcified mass, was found in the ethmoid sinus of a 61-year-old man experiencing nasal obstruction. Surgical removal and analysis confirmed its bone-like composition, aiding in understanding these unusual nasal growths.

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Area of Science:

  • Otolaryngology
  • Medical Imaging
  • Biochemistry

Background:

  • Sinoliths are rare calcified masses within the paranasal sinuses.
  • Nasal obstruction can be caused by various sinonasal pathologies, including polyps and rare masses.

Observation:

  • A 61-year-old male presented with nasal obstruction.
  • Computed tomography (CT) identified a calcified mass (sinolith) and a nasal polyp in the left ethmoid sinus.

Findings:

  • Endoscopic sinus surgery successfully removed the sinolith and polyp.
  • Histopathology revealed the sinolith to be bone-like, approximately 1 cm in diameter.
  • Infrared spectroscopy showed the sinolith composed of protein (45%), calcium phosphate (43%), and calcium carbonate (12%).

Implications:

  • This case contributes to the understanding of sinolith composition and presentation.
  • Highlights the role of CT and endoscopic surgery in diagnosing and treating sinoliths.
  • Provides biochemical data on sinolith constituents, potentially informing future research.

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