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Malignant proliferating trichilemmal tumor of the scalp: a case report
Amel Trabelsi1, Wided Stita, Olfa Gharbi
1Department of Pathology, Farhat Hached hospital, Sousse, Tunisia. trabelsiamel@yahoo.fr
Background:
Malignant proliferating trichilemmal tumor is a rare skin tumor that affects mainly older women. It mimicks differential squamous cell carcinoma and its biological behavior is unpredictable.
Objective:
To report on a new case of malignant proliferating trichilemmal tumor of the scalp and to describe the clinical and histopathologic findings.
Methods:
A tumor measuring 2 cm was surgically excised with a 0.5 cm conservative margin of normal tissue
Results:
Based on the histopathologic findings of tumor, this case was diagnosed as proliferating trichilemmal tumor of the scalp. Eleven months after tumor resection, the patient is free of disease.
Conclusion:
Malignant proliferating trichilemmal tumor is a rare malignant lesion with an unpredictable biological behavior. After wide excision, long term clinical follow up of the patient for early diagnosis of metastases is judicious.
