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Introduction <p>Dermoid cysts are benign cystic hamartomas, arising due to defect of fusion of embryonal folds. Sublingual dermoids represent less than 0.01% of all cystic swellings of the oral cavity. They tend to increase in size during puberty causing various complications like difficulty in swallowing and respiratory distress. The cyst wall may undergo malignant transformation to squamous cell carcinoma in rare instances if left untreated. We present such a case occurring in a patient belonging to the pediatric age group, in order to enumerate the various differential diagnosis in such a presentation, as well as to describe the management protocol in such cases.</p> Case Report <p>A female child presented with a swelling in the floor of mouth as the presenting complaint. CT scan showed unilocular non-enhancing hypodense lesion in the sublingual space. FNAC showed presence of squamous epithelial cells and keratin flakes. The case was managed surgically and HPE confirmed the diagnosis.</p> Conclusion <p>Sublingual dermoid cysts may be misdiagnosed due to their non-specific clinical features and rarity of occurrence. Prompt surgical management is crucial to prevent complications respiratory and feeding difficulties, recurrent respiratory tract infection, and rarely malignant transformation.</p>

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Diagnosis and Management of Sublingual Dermoid Cyst in A Pediatric Patient: A Case Report

  • 期刊论文

  • 发表日期：

    2026年5月7日

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  • Suvam Pati,
  • Probal Chatterji,
  • Yashodeep Mukherjee

摘要

Introduction

Dermoid cysts are benign cystic hamartomas, arising due to defect of fusion of embryonal folds. Sublingual dermoids represent less than 0.01% of all cystic swellings of the oral cavity. They tend to increase in size during puberty causing various complications like difficulty in swallowing and respiratory distress. The cyst wall may undergo malignant transformation to squamous cell carcinoma in rare instances if left untreated. We present such a case occurring in a patient belonging to the pediatric age group, in order to enumerate the various differential diagnosis in such a presentation, as well as to describe the management protocol in such cases.

Case Report

A female child presented with a swelling in the floor of mouth as the presenting complaint. CT scan showed unilocular non-enhancing hypodense lesion in the sublingual space. FNAC showed presence of squamous epithelial cells and keratin flakes. The case was managed surgically and HPE confirmed the diagnosis.

Conclusion

Sublingual dermoid cysts may be misdiagnosed due to their non-specific clinical features and rarity of occurrence. Prompt surgical management is crucial to prevent complications respiratory and feeding difficulties, recurrent respiratory tract infection, and rarely malignant transformation.