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A Rare Case of Low-grade Appendiceal Mucinous Neoplasm: A Case Report

Hector H Gonzalez1, Kimberly Herard1, Maria C Mijares1

  • 1Internal Medicine, Florida Atlantic University Charles E. Schmidt College of Medicine, Boca Raton, USA.

Cureus
|April 11, 2019
PubMed

Insights

Low-grade appendiceal mucinous neoplasm (LAMN) is a rare cancer. This case highlights LAMN diagnosis after appendiceal abscess treatment and appendectomy, emphasizing the need for vigilance in appendiceal neoplasm management.

Area of Science:

  • Gastroenterology and Surgical Oncology
  • Appendiceal Neoplasms
  • Mucinous Neoplasms

Background:

  • Low-grade appendiceal mucinous neoplasm (LAMN) is a rare malignancy.
  • Symptoms of LAMN vary, with potential for pseudomyxoma peritonei (PMP) due to mucin seeding.
  • Current treatment for non-metastatic LAMN often involves an appendectomy-only approach.

Observation:

  • A 67-year-old male was diagnosed with LAMN.
  • The diagnosis was made post-elective appendectomy.
  • This occurred six months after the patient was treated for an appendiceal abscess.

Findings:

  • This case presents an unusual presentation of LAMN.
  • The patient had a history of appendiceal abscess treated prior to LAMN diagnosis.
  • LAMN was identified incidentally after an appendectomy.

Implications:

  • Highlights the importance of considering LAMN in patients with a history of appendiceal abscess.
  • Suggests the appendectomy-only approach may be effective for select LAMN cases.
  • Underscores the need for awareness of LAMN's varied clinical manifestations and potential complications like PMP.
Keywords:
appendixlow-grade appendiceal mucinous neoplasmmucinpseudomyxoma peritonei

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