Asymptomatic low-grade appendiceal mucinous neoplasm: A case report.

Area of Science:

• Gastroenterology
• Surgical Oncology

Background:

• Low-grade appendiceal neoplasms (LAMN) present with atypical symptoms, frequently leading to misdiagnosis as appendicitis.
• Abdominal computed tomography (CT) is the primary diagnostic tool for LAMN.
• Surgical resection is the standard treatment, with laparoscopy offering a minimally invasive option.

Observation:

• A 71-year-old male presented with a pelvic mass, initially detected via CT.
• Enteroscopy revealed a 3.0 cm cecal mass, and CT showed a thickened, dilated appendix.
• Laparoscopic surgery confirmed a dilated appendix, leading to resection of the appendix and part of the cecum.

Findings:

• Pathologic analysis confirmed LAMN.
• The patient experienced an uncomplicated recovery and was discharged on postoperative day 4.
• No tumor recurrence was noted during a 7-month follow-up.

Implications:

• LAMN diagnosis relies heavily on CT imaging due to non-specific clinical presentations.
• Laparoscopic surgery is a safe and effective approach for both diagnosis and treatment of LAMN.
• Early detection and surgical intervention lead to favorable outcomes for LAMN patients.