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Case of seborrheic keratosis with underlying basal cell carcinoma suggesting a collision tumor
Author(s) -
Jee Hyunjoong,
Lee Noo Ri,
Ahn Sung Ku
Publication year - 2013
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/1346-8138.12222
Subject(s) - seborrheic keratosis , basal cell carcinoma , histopathology , pathology , keratosis , basal (medicine) , basal cell , dermatology , immunohistochemistry , medicine , insulin
Reports of seborrheic keratosis ( SK ) with concurrent malignant tumors are rare, but previous and recent reports – especially the co‐manifestation of basal cell carcinomas ( BCC ) have added to the ongoing debate of the possibility of the development of BCC from SK . We report a rare case of SK with underlying BCC with scarcely accounted histopathological characteristics – reticulated type and nodular type, respectively – that showed no direct histological link between the two entities. We also carefully suggest that differences in histopathology (whether the two lesions are connected or not) may account for the possibility of incidental co‐habitation.