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Extensive Calvarial Reconstruction for Recurrent Scalp Malignant Proliferating Trichilemmal Tumor: Case Report
Pablo Alfredo Vargas-Ardila1, María Camila Bonilla-Lersundy2, Iván Andrés Freire-Figueroa1
1Department of Neurosurgery, Hospital Militar Central, Bogotá, Colombia.
Asian Journal of Neurosurgery
|May 11, 2026
Summary
Malignant proliferating trichilemmal tumor (MPTT) is a rare skin cancer. This case shows an aggressive MPTT requiring extensive surgery and radiotherapy for control, highlighting the need for multidisciplinary care.
Area of Science:
- Dermatology
- Oncology
- Surgical Pathology
Background:
- Malignant proliferating trichilemmal tumor (MPTT) is a rare cutaneous neoplasm originating from hair follicle external root sheath.
- MPTT often affects sun-exposed areas and can be misdiagnosed due to its similarity to other skin neoplasms.
- Aggressive behavior and local recurrence are characteristic challenges in MPTT management.
