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Mesenchymal Tumours and Other Neoplasms
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Fig. 9.32. Dog. Amelanotic melanoma. Most neoplastic cells do not contain melanin granules. Cytological
features of atypia are moderate, including prominent nucleoli. Wright-Giemsa.

Further reading

Van Der Linde Sipman, J.S., De Witt, M.M., Van Garderen, E., Molenbeek, R.F., Velde Zimmermann, D. and De
Weger, R.A. (1997) Cutaneous malignant melanomas in 57 cats: identification of (amelanotic) signet-ring
and balloon cell types and verification of their origin by immunohistochemistry, electron microscopy, and
in situ hybridization. Veterinary Pathology 34(1), 31–38.
Wilkerson, M.J., Dolce, K., DeBey, B.M., Heeb, H. and Davidson, H. (2003) Metastatic balloon cell melanoma in
a dog. Veterinary Clinical Pathology 32(1), 31–36.