1. Ellis DL, Riahi RR, Murina AT, Cohen PR. Metastatic laryngeal carcinoma mimicking eruptive keratoacanthomas: Report of keratoacanthoma-like cutaneous metastases in a radiation port. Dermatol Online J 2014;20. pii: 13030.
2. Zook MB, Wu H, Lessin SR. Cutaneous metastases. In: Jean L, Bolognia JL, Schaffer JV, editors. Dermatology. 3rd ed., Vol. 2. China: Elsevier; 2012. p. 2049-55.