1. eMedicine - Proliferating Pilar Tumor : Article by Amor Khachemoune, MD, CWS
proliferating trichilemmal cyst, pilar cyst, proliferating trichilemmal tumor Author: A proliferating pilar tumor (PPT) is a rare neoplasm arising from the ...
http://emedicine.com/derm/topic631.htm

2. Premalignant & Malignant Tumors of the Skin -- American Academy Of Dermatology
Companion to set 30 portrays clinical and histologic aspects of premalignant and appendageal tumors; mesodermal, epidermal, melanocytic and metastatic malig...
http://www.aad.org/Marketplace/shopping/slides/29.html

3. eMedicine - Pilar Cyst : Article by Mohsin Ali, BSc, MBBS, MRCPI, MRCP -- Emedicine Clinical Know...
pilar cysts, trichilemmal cysts, scalp cysts, benign cysts, keratinizing cyst Author: Pilar Cyst - Pilar cysts are common, occurring in 5-10% of population....
http://www.emedicine.com/DERM/topic328.htm