TY - JOUR
T1 - Proliferating trichilemmal tumors
T2 - A review of the literature
AU - Satyaprakash, Anita K.
AU - Sheehan, Daniel J.
AU - Sangüeza, Omar P.
PY - 2007/9
Y1 - 2007/9
N2 - BACKGROUND: Proliferating trichilemmal tumors (PTTs) are uncommon lesions whose histologic hallmark is the presence of trichilemmal keratinization. PTT is thought to originate from the trichilemmal cyst (TC) and have the potential for malignant transformation, at which point it is termed a malignant proliferating trichilemmal tumor (MPTT). These lesions may cause considerable morbidity and even mortality, and recurrence after simple local excision is common. OBJECTIVE: The objective was to review the clinical presentation, histopathologic characteristics, malignant potential, and treatment options for PTT. METHODS: The English literature was reviewed regarding PTT, TC, and MPTT. RESULTS: PTT generally presents as a subepidermal tumor on the scalp in women over the age of 60. Histologic findings may be used to differentiate PTT from TC and MPTT. Complete surgical excision is recommended; additional radiotherapy and/or chemotherapy may be used for lesions with increased invasive potential. CONCLUSION: Adequate treatment of PTT requires skilled histopathologic examination for proper diagnosis; histologic appearance may not correlate with clinical behavior. After surgical excision, long-term clinical follow-up for evidence of metastatic disease is judicious.
AB - BACKGROUND: Proliferating trichilemmal tumors (PTTs) are uncommon lesions whose histologic hallmark is the presence of trichilemmal keratinization. PTT is thought to originate from the trichilemmal cyst (TC) and have the potential for malignant transformation, at which point it is termed a malignant proliferating trichilemmal tumor (MPTT). These lesions may cause considerable morbidity and even mortality, and recurrence after simple local excision is common. OBJECTIVE: The objective was to review the clinical presentation, histopathologic characteristics, malignant potential, and treatment options for PTT. METHODS: The English literature was reviewed regarding PTT, TC, and MPTT. RESULTS: PTT generally presents as a subepidermal tumor on the scalp in women over the age of 60. Histologic findings may be used to differentiate PTT from TC and MPTT. Complete surgical excision is recommended; additional radiotherapy and/or chemotherapy may be used for lesions with increased invasive potential. CONCLUSION: Adequate treatment of PTT requires skilled histopathologic examination for proper diagnosis; histologic appearance may not correlate with clinical behavior. After surgical excision, long-term clinical follow-up for evidence of metastatic disease is judicious.
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U2 - 10.1111/j.1524-4725.2007.33225.x
DO - 10.1111/j.1524-4725.2007.33225.x
M3 - Article
C2 - 17760602
AN - SCOPUS:34548331861
SN - 1076-0512
VL - 33
SP - 1102
EP - 1108
JO - Dermatologic Surgery
JF - Dermatologic Surgery
IS - 9
ER -