1. Pilomatricoma [letter];Arnold;Arch Dermatol,1974
2. Pilomatrixoma: an elusive diagnosis;Colver;Int J Dermatol,1988
3. Crapanzano JP. Case of the month. Papanicolaou Society of Cytopathology. December 2010. Available from: URL: http://www.papsociety.org/cotm10/cotmdec10.html. Accessed January 3, 2011.
4. Pilomatrixoma (calcifying epithelioma);Forbis;Arch Dermatol,1961
5. The tent sign of pilomatricoma;Graham;Cutis,1978