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Introduction <p><i>Enterobius vermicularis</i> (pinworm) infection is typically a self-limiting disease due to the short lifespan of the adult worm, and it usually manifests as perianal pruritus at night. While intestinal symptoms are common, rare extraintestinal manifestations may occur, involving the urinary tract, biliary tract, liver, and female reproductive tract, due to the migration of adult female worms to these sites. Additionally, rare cases of pinworm infection have been reported in the salivary glands, nasal mucosa, and skin, primarily resulting from autoinfection with either eggs or adult worms.</p> Case Presentation <p>Here, we present a case of an 85-year-old man with complaints of painless swelling over the right jaw. On physical examination, no worms were visible through the salivary duct. CT scan performed revealed a swollen nodule in the right parotid gland. Further, a needle biopsy was performed, which indicated an <i>Enterobius vermicularis</i> infection. The patient was discharged and advised to take Albendazole 400&#xa0;mg once on an empty stomach and repeat the same after 2&#xa0;weeks.</p> Conclusion <p>While anthelmintic drugs are essential for treating and preventing reinfection and autoinfection of pinworms, maintaining proper hand hygiene is also crucial to reduce susceptibility, particularly among immunocompromised individuals.</p>

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Can Pinworms Migrate to the Parotid?: A Case Report

  • 期刊论文

  • 发表日期：

    2025年8月13日

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  • Diviya Bharathi Ravikumar,
  • Rhea Prasad,
  • Viraj Panchal,
  • Barath Prashanth Sivasubramanian,
  • Vikramaditya Samala Venkata

摘要

Introduction

Enterobius vermicularis (pinworm) infection is typically a self-limiting disease due to the short lifespan of the adult worm, and it usually manifests as perianal pruritus at night. While intestinal symptoms are common, rare extraintestinal manifestations may occur, involving the urinary tract, biliary tract, liver, and female reproductive tract, due to the migration of adult female worms to these sites. Additionally, rare cases of pinworm infection have been reported in the salivary glands, nasal mucosa, and skin, primarily resulting from autoinfection with either eggs or adult worms.

Case Presentation

Here, we present a case of an 85-year-old man with complaints of painless swelling over the right jaw. On physical examination, no worms were visible through the salivary duct. CT scan performed revealed a swollen nodule in the right parotid gland. Further, a needle biopsy was performed, which indicated an Enterobius vermicularis infection. The patient was discharged and advised to take Albendazole 400 mg once on an empty stomach and repeat the same after 2 weeks.

Conclusion

While anthelmintic drugs are essential for treating and preventing reinfection and autoinfection of pinworms, maintaining proper hand hygiene is also crucial to reduce susceptibility, particularly among immunocompromised individuals.