Desmoplastic Trichilemmoma Mimicking Basal Cell Carcinoma: Two New Cases, Systematic Review of 92 Cases and Dual Staining Diagnostic Approach.
Mokhtar H Abdelhammed, Hong Yu, Nisha S Ramani
✦ AI-curated · Sources linked
Case in brief
Two cases of desmoplastic trichilemmoma (DTM) were presented, both mimicking basal cell carcinoma (BCC) due to overlapping features. Histopathological examination revealed a lobular growth pattern and desmoplastic stroma. Immunohistochemical analysis showed CD34 positivity and BerEP4 negativity, aiding in the differentiation from BCC. The cases highlight the importance of accurate diagnosis to ensure appropriate management.
Diagnostic / clinical pearl
Clinicians should utilize the CD34-BerEP4 dual-marker approach for accurate differentiation between desmoplastic trichilemmoma and basal cell carcinoma, as misdiagnosis can lead to inappropriate treatment.