A Case of Malignant Hidroacanthoma Simplex / 대한피부과학회지
Korean Journal of Dermatology
; : 226-229, 2015.
Article
in Ko
| WPRIM
| ID: wpr-121653
Responsible library:
WPRO
ABSTRACT
Malignant transformation of hidroacanthoma simplex into in situ porocarcinoma, also known as hidroacanthoma simplex with invasive growth, is very rare. Malignant hidroacanthoma simplex generally arises in the elderly and occurs most frequently on the lower extremities and trunk. The gross appearance of the tumor tends to vary, and there are nodular lesions or keratotic plaques with or without erosion and/or ulceration. In some cases, it clinically resembles Bowen's disease or seborrheic keratosis. Histopathologically, the tumor appears similar to hidroacanthoma simplex, but the cells are atypical with hyperchromatic nuclei, and many are in mitosis. Here we report an extremely rare case of malignant hidroacanthoma simplex that occurred on the right knee of an 84-year-old Korean woman.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Ulcer
/
Bowen's Disease
/
Keratosis, Seborrheic
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Lower Extremity
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Knee
/
Mitosis
Limits:
Aged
/
Aged80
/
Female
/
Humans
Language:
Ko
Journal:
Korean Journal of Dermatology
Year:
2015
Type:
Article