A giant epidermal cyst preoperatively diagnosed by core needle biopsy

Area of Science:

• Dermatology
• Oncology
• Pathology

Background:

• Epidermal cysts are common benign cutaneous tumors.
• Giant epidermal cysts are defined as those larger than 5 cm.
• Preoperative imaging and biopsy are recommended for soft tissue tumors >5 cm.

Observation:

• Biopsy of giant epidermal cysts is rarely performed due to potential complications from cyst material.
• A case of a giant epidermal cyst is presented where a core needle biopsy was successfully performed.
• No adverse effects were observed after the core needle biopsy.

Findings:

• Core needle biopsy can be safely performed on giant epidermal cysts.
• Preoperative diagnosis of giant epidermal cysts is achievable through core needle biopsy.
• The procedure did not lead to complications influencing the clinical course.

Implications:

• Core needle biopsy is a viable and safe diagnostic tool for giant epidermal cysts.
• This method can mitigate perioperative uncertainty for clinicians.
• It encourages clinicians to consider biopsy for accurate giant epidermal cyst diagnosis.