Although rare, breast CLL/SLL should be considered in the differential diagnosis of a breast mass. A high index of suspicion is needed to differentiate this neoplasm from more common breast carcinomas like solid variant of invasive lobular carcinoma.
Keywords: CLL/SLL; breast; ductal carcinoma in situ; mammography; radiation.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.