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Low-grade Appendiceal Mucinous Neoplasm: A Rare Case Presentation

Nayani Nithin Kumar1, Sukriti Gupta, Virendra Athavale

  • 1General Surgery, Dr. D. Y. Patil University, Pune, Maharashtra, India.

Annals of African Medicine
|August 5, 2026
PubMed

Insights

Low-grade appendiceal mucinous neoplasms (LAMNs) are rare appendix tumors. Complete surgical removal is crucial for preventing serious complications like pseudomyxoma peritonei.

Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Background:

  • Low-grade appendiceal mucinous neoplasms (LAMNs) are uncommon tumors of the appendix.
  • These neoplasms are characterized by mucin production and minimal cellular abnormalities.
  • Despite their generally benign nature, LAMNs carry a risk of malignant transformation, potentially leading to pseudomyxoma peritonei if the appendiceal wall is breached.

Purpose of the Study:

  • To present a case of a young male diagnosed with LAMN.
  • To highlight the clinical presentation and diagnostic process for LAMN.
  • To emphasize the importance of surgical intervention in managing LAMN.

Main Methods:

  • Case report of a 34-year-old male with abdominal pain.
  • Diagnostic workup including histopathological examination post-appendectomy.
  • Clinical follow-up to assess patient outcome.

Main Results:

  • The patient was diagnosed with LAMN following appendectomy.
  • The patient experienced an uncomplicated recovery and remained disease-free post-surgery.
  • Histopathological examination confirmed the diagnosis of LAMN.

Conclusions:

  • Timely diagnosis and complete surgical excision are vital for managing LAMN.
  • Effective treatment can prevent the progression to pseudomyxoma peritonei.
  • Appendiceal mucinous neoplasms require careful management to ensure favorable patient outcomes.
Keywords:
AppendectomyAppendiceAppendicectomieLAMNNéoplasme mucineuxPseudomyxome péritonéalappendixlow-grade appendiceal mucinous neoplasmmucinous neoplasmpseudomyxoma peritonei

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