1. 1. Clifford, C. A. and Skorupski, K. A. 2007. Histiocytic diseases. p. 821. In: Withrow & MacEwen's Small Animal Clinical Oncology, 4th ed. (Withrow, S. J. and MacEwen, E. G. eds.), Saunders Elsevier, St. Louis.
2. 2. Fletcher, C. D. M., Unni, K. K. and Mertens, F. 2002. World Health Organization Classification of Tumors: Pathology and Genetics of Tumors of Soft Tissue and Bone, IARC press, Lyon.
3. 3. Forrest, L. J. 2007. Cranial and nasal cavities: canine and feline. pp 128-129. In: Textbook of Veterinary Diagnostic Radiology, 5th ed. (Thrall, D. E. ed.), Saunders Elsevier, St. Louis.
4. 4. Fulmer, A. K. and Mauldin, G. E. 2007. Canine histiocytic neoplasia: an overview. Can. Vet. J. 48: 1041-1050.
5. Malignant Fibrous Histiocytoma in the Skull —Case Report—