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Acute Pansinusitis Caused by a Retained Merocel Pack Forgotten for 50 Days: A Case Report With Histopathologic

Joo Hyung Lee1, Dong Hwan Kwon1, Hyunjong Jeon1

  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.

Journal of Rhinology : Official Journal of the Korean Rhinologic Society
|August 4, 2026
PubMed

Insights

Prolonged retention of Merocel nasal packing after sinonasal surgery can lead to acute sinusitis and adhesion due to inflammatory tissue ingrowth. Timely removal and patient education are crucial for preventing complications from this nonabsorbable material.

Area of Science:

  • Otolaryngology
  • Surgical Materials Science

Background:

  • Merocel, a polyvinyl acetal sponge, is a nonabsorbable nasal packing used post-sinonasal surgery for hemostasis and ease of placement.
  • Standard practice dictates removal within 48 hours to mitigate risks of mucosal injury, infection, and adhesion.
Keywords:
Case reportHistopathologyMerocelNasal packingPansinusitis

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