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Introduction <p>Osteomas are the most common benign tumors of the paranasal sinuses, predominantly affecting the frontal sinus. While typically slow-growing and asymptomatic, giant osteomas—defined as those exceeding 30 mm—can present with symptoms due to mass effect on adjacent structures. Their occurrence in pediatric patients, especially females, is exceedingly rare.</p> Materials and Methods <p>A 13-year-old female presented with a 4–5-month history of progressive swelling in the left supraorbital region and one month of intermittent blurring of vision in the left eye. Clinical examination revealed a firm, bony-hard swelling deforming the supraorbital rim and displacing the globe. Imaging studies, including non-contrast computed tomography (NCCT) and magnetic resonance imaging (MRI), identified a large, lobulated lesion of the left frontal sinus with orbital and intracranial extension. Surgical excision was performed via a coronal approach, followed by cranialization of the frontal sinus using a pedicled pericranial flap.</p> Results <p>The excised lesion measured 24 × 44 × 33 mm and weighed 42.36 g. Histopathological examination confirmed a mixed-type osteoma composed of compact mature lamellar bone interspersed with fibrous stroma. Postoperatively, the patient experienced complete resolution of symptoms, with no recurrence observed at 6-month follow-up.</p> Discussion <p>Giant frontal sinus osteomas with orbital and intracranial extension are rare in the pediatric population. Early diagnosis through imaging is crucial for timely intervention. Surgical management via a coronal approach provides optimal exposure for complete excision and safe management of sinus and dural integrity. Histopathological confirmation and long-term monitoring are essential for favorable outcomes.</p>

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Giant Osteoma of Frontal Sinus: A Rare Case Report and Review

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • N. K. Sahoo,
  • Apoorva Mowar,
  • Sooraj S. Pillai,
  • Himani Vaswani,
  • Nivedita Yadav

摘要

Introduction

Osteomas are the most common benign tumors of the paranasal sinuses, predominantly affecting the frontal sinus. While typically slow-growing and asymptomatic, giant osteomas—defined as those exceeding 30 mm—can present with symptoms due to mass effect on adjacent structures. Their occurrence in pediatric patients, especially females, is exceedingly rare.

Materials and Methods

A 13-year-old female presented with a 4–5-month history of progressive swelling in the left supraorbital region and one month of intermittent blurring of vision in the left eye. Clinical examination revealed a firm, bony-hard swelling deforming the supraorbital rim and displacing the globe. Imaging studies, including non-contrast computed tomography (NCCT) and magnetic resonance imaging (MRI), identified a large, lobulated lesion of the left frontal sinus with orbital and intracranial extension. Surgical excision was performed via a coronal approach, followed by cranialization of the frontal sinus using a pedicled pericranial flap.

Results

The excised lesion measured 24 × 44 × 33 mm and weighed 42.36 g. Histopathological examination confirmed a mixed-type osteoma composed of compact mature lamellar bone interspersed with fibrous stroma. Postoperatively, the patient experienced complete resolution of symptoms, with no recurrence observed at 6-month follow-up.

Discussion

Giant frontal sinus osteomas with orbital and intracranial extension are rare in the pediatric population. Early diagnosis through imaging is crucial for timely intervention. Surgical management via a coronal approach provides optimal exposure for complete excision and safe management of sinus and dural integrity. Histopathological confirmation and long-term monitoring are essential for favorable outcomes.