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Mammary epidermoid inclusion cysts after wide-core needle biopsies
J D Davies1, A Nonni, H F D'Costa
1Regional Breast Pathology Unit, University of Bristol, Southmead Hospital, UK.
Histopathology
|February 3, 1998
Abstract
Aims:
To investigate the prevalence of squamous epidermoid inclusion cysts after wide-core needle biopsy.
Methods And Results:
Epidermoid inclusion cysts were found in five of 17 surgical excisions (29%) after preliminary wide-core needle biopsies in a 7-month period. Thereafter they were not seen in 26 subsequent postwide-core surgical excisions in a period of 6 months.
Conclusions:
The cysts appear to be an iatrogenic complication of wide-core biopsy, and need morphological recognition in order to avoid confusion with spontaneous squamous metaplasia of benign or malignant breast epithelium. Longer term implications are unknown.