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Anais Brasileiros de Dermatologia
Print version ISSN 0365-0596
GAHONA, Maria Leonor Enei and MACHADO FILHO, Carlos d' Aparecida Santos. Spontaneous involution of keratoacanthoma, iconographic documentation and similarity with volcanoes of nature. An. Bras. Dermatol. [online]. 2012, vol.87, n.2, pp.335-336. ISSN 0365-0596. http://dx.doi.org/10.1590/S0365-05962012000200031.
Through iconography, we show a case of keratoacanthoma (KA) on the nasal dorsum at two different stages of evolution (maturation and regression) and its similarity with images of the Mount St. Helens volcano and the Orcus Patera crater. Using these illustrations, we highlight why the crateriform aspect of this tumor is included in its classic clinical description. Moreover, we photographically documented the self-involuting tendency of KA, an aspect that is seldom documented in the literature.
Keywords : Carcinoma; squamous cell; Keratoacanthoma; Neoplasms.