Abstract Introduction/Objective Papillary breast lesions are comprised of a broad spectrum entities ranging from benign conditions like intraductal papilloma to invasive carcinoma. These account for less than 3% percent tumors and 2% malignancies. The wide range overlap in the clinical, imaging, histologic characteristics these can often make them difficult classify. Here we present case challe...

Intraductal papillomas (IP) are benign papillary lesions caused by proliferation of mammary ductal epithelium. IP occurs in the breast tissue. Prolapse of IP from nipple can be rarely seen. IPs are generally treated with total excision. A 31-year-old female patient was admitted to our clinic because of a protruded lesion from the nipple of her right breast. On her breast examination, an 8 mm- p...

Intravascular papillary endothelial hyperplasia is a benign nonneoplastic vascular lesion that consists of endothelial cells with abundant vascular tissue with papillary proliferation. An adult female had a painless growing dark red nodule on the left side of the lower lip and often touched and gnawed at it for more than 4 years. The lesion was a tender, smooth mass approximately 1 cm in diamet...

The presence of ectopic breast tissue in axillary lymph nodes (ALN) is a benign condition that must be differentiated from primary or metastatic carcinoma. Here we report a patient who underwent excision of enlarged ALN 10 years after she had received surgical treatment of ipsilateral breast for an intracystic intraductal papilloma (IDP). Histological examination of the removed ALN revealed tha...

Background The purpose of this study was to determine the pathological and ultrasound (US) features benign nonpalpable breast lesions (NPBLs) classified as Breast Imaging Reporting Data System (BI-RADS) category 4C or 5. Methods Between 2003 2007, 849 consecutive NPBLs detected at US BI-RADS (505) 5 (344) initially underwent US-guided fine needle aspiration (FNA) our institution. Benign diagnos...

Malignant papillary neoplasms of the breast comprise a number of microscopically distinct lesions, where apocrine metaplasia is commonly found in papillomas compared to other papillary lesions including papillary carcinomas. However, association of apocrine metaplasia in papilloma with Ductal Carcinoma in Situ (DCIS) is not very well defined. The lesions with apocrine metaplasia are not only di...

MUTYH-associated polyposis (MAP) is an autosomal recessive disease, which predisposes to polyposis and colorectal cancer. There is a trend towards an increased risk of breast cancer in MAP patients, with a remarkable proportion of papillary breast cancers. To determine whether MUTYH mutations are associated with this specific and rare type of breast cancer, 53 unselected patients with papillary...

Metastasis to the thyroid gland is very rare. Recently, we experienced a case of thyroid metastasis from breast cancer accompanying a papillary thyroid. A 51-year-old female patient presented with a palpated lymph node on her left lateral neck. The patient had undergone a left modified radical mastectomy followed by chemotherapy and hormonal therapy 12 years prior. Ultrasonography of the neck r...

A comprehensive cytologic study of a large series papillary lesions the breast suggests combination new features to distinguish benign neoplasms from malignant ones.