A rare case of squamous cell carcinoma of a proliferating trichilemmal tumour

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COD: 03_2017_15_2681 Categorie: ,

Bruno Di Pace, Vincenzo Verdura, Marina Concilio, Carlo Baldi, Pio Zeppa, Giovanni Francesco Nicoletti, Corrado Rubino

Ann. Ital. Chir., 2017 88, 3: 263-267

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INTRODUCTION: Squamous Cell Carcinoma (SCC) includes several subtypes and these can be classified according to their
clinical behaviours from the least invasive to the most aggressive. Moreover, it is appropriate to analyse their clinicalpathological
patterns 1. In light of its wide histopathological variability, we encountered a rare malignant cutaneous
lesion: a SCC of a proliferating trichilemmal tumour (PTT) nature.
CASE REPORT: We describe the clinical and pathologic findings of an 82-year-old woman, who developed a SCC with
areas of trichilemmal differentiation. It has a surprising thickness of 25 mm, which passes through the dermis, infiltrates
the hypodermis and evolves quickly.
CONCLUSION: Considering its exophytic growth and the negative results of the post operative tests (ultrasounds confirmed
absence of metastasis), the tumour was eradicated thanks to the surgical approach (a 1 cm border wide excision, including
the periosteum in the central part of the lesion, followed by its reconstruction using a full-thickness skin graft) and
the prompt intervention, without need for further complimentary treatments. The overall aesthetic results were pleasing.