Giant aggressive forehead tumor: A 15-year follow-up.

Raymond Challita,Said Halabi

doi:10.4081/cp.2019.1172

Abstract

Proliferating trichilemmal tumors are rare tumors that originate from adnexal structures – specifically from the outer root sheaths of hair follicles. These tumors can be benign or malignant. We report a rare case of a giant aggressive forehead trichilemmal tumor that was paradoxically benign on pathology. It was surgically excised and followed-up for 15 years.

Highlights

Proliferating trichilemmal tumors (PTTs) are rare tumors that originate from adnexal structures from the outer root sheaths of hair follicles
PTT is a rare benign tumor usually arising from a pilar cyst derived from the outer root sheaths of hair follicles
We presented a rare case of giant aggressive forehead PTT in a man with long term follow-up where wide excision and reconstruction with no adjuvant treatment seemed sufficient with no local or distant recurrence

Summary

Introduction

Proliferating trichilemmal tumors (PTTs) are rare tumors that originate from adnexal structures from the outer root sheaths of hair follicles. We report a rare case of a giant aggressive forehead trichilemmal tumor that was paradoxically benign on pathology. It was surgically excised and followed-up for 15 years to monitor for recurrence or malignant transformation. Physical examination showed a 17-cm dome shaped mass present on the forehead with central necrosis and bleeding (Figure 1). After 3 years, patient presented with recurrent left supraorbital mass measuring 3 cm (Figure 4). An extensive clinical exam was done and patient showed no signs of local recurrence or distant metastases with long term follow-up. A 65-year-old male patient with no significant medical history presented to our hospital for a huge mass on the frontal area that was bleeding .

Discussion

Findings

Conclusions