Case Reports
4 December 2013
Vol. 5 No. 1 (2013)
https://doi.org/10.4081/dr.2013.e3

Cutaneous horn malignant melanoma

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skin, cutaneous horn, malignant melanoma, verrucous malignant melanoma
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Authors

Haruto Nishida
nharuto@oita-u.ac.jp
Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu, Japan.
Tsutomu Daa
Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu, Japan.
Kenji Kashima
Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu, Japan.
Motoki Arakane
Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu, Japan.
Hiromitsu Shimada
Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.
Mizuki Goto
Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.
Yoshitaka Kai
Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.
Yutaka Hatano
Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.
Osamu Okamoto
Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.
Shigeo Yokoyama
Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu, Japan.
A 73-year-old Japanese woman presented with cutaneous horn on the right cheek. The resected tumor was 9 mm in diameter, with 14 mm protrusion, and showed exophytic growth with marked papillomatosis. Histopathology showed proliferation of atypical melanocytes with melanin pigments in the epidermis and dermis under the cutaneous horn. These cells were confined to the base of the cutaneous horn, and did not spread to the surrounding epidermis. The final diagnosis was cutaneous horn malignant melanoma. This pathological entity is considered a specific form of verrucous melanoma, and might be added to the list of cutaneous horn-forming lesions.

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Supporting Agencies

Haruto Nishida, Department of Diagnostic Pathology, Faculty of Medicine, Oita University, Yufu


How to Cite



Cutaneous horn malignant melanoma. (2013). Dermatology Reports, 5(1), e3. https://doi.org/10.4081/dr.2013.e3