Epidermoid cyst within an intrapancreatic accessory spleen

Area of Science:

• Gastroenterology and Hepatology
• Surgical Oncology
• Pathology

Background:

• Intrapancreatic accessory spleens are rare anatomical variations.
• Epidermoid cysts are benign tumors, but can mimic malignant pancreatic neoplasms.
• Distinguishing cystic lesions in the pancreas is crucial for appropriate management.

Observation:

• A patient presented with abdominal pain, nausea, and vomiting.
• Imaging revealed a cystic mass in the pancreatic tail, suspicious for mucinous cystic neoplasm (MCN).
• Surgical resection was performed for suspected MCN.

Findings:

• Histological examination revealed an epidermoid cyst within an intrapancreatic accessory spleen.
• This represents an exceedingly rare concurrent occurrence.
• The lesion was initially misdiagnosed based on imaging characteristics.

Implications:

• Further research into imaging characteristics is needed to differentiate these rare cysts from malignant pancreatic tumors.
• Robotic distal pancreatectomy is a safe and effective surgical option for pancreatic tail lesions.
• Accurate preoperative diagnosis can guide surgical planning and patient management.