Imaging-guided core needle biopsy was accurate in differentiating between fibroadenomas and phyllodes tumors. US classification was unreliable due to considerable overlap in the findings. Combined use of US feature analysis and needle biopsy may help to avoid the misinterpretation of phyllodes as fibroadenoma.

Sonography was found to be a valuable method for localizing intraductal abnormalities, especially papillomatous lesions, in patients with nipple discharge with no other clinical or radiologic findings. Preoperative sonographically guided wire localization can be used successfully instead of conventional methylene blue staining in cases with problems in cannulation of the discharging duct. Galactography remains the primary diagnostic method, especially in depicting malignant causes of nipple discharge, which may be seen only as duct dilatation on sonography.

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Cytological results of US-guided fine needle aspiration biopsies of enlarged lymph nodes from 179patients were analyzed retrospectively. The final diagnoses were benign lymphadenopathy in 90 cases, metastasis in 56, and malignant lymphoma in 33 cases. The material was sufficient for cytological analysis in 174 cases (97.2%). Correct diagnosis of malignant (C IV-V) and benign (C I-II) lymphadenopathy in the whole material was possible in 80 percent of cases. Correct subtyping of lymphoma was possible in 63.6 percent of the cases. There was one (0.6%) false positive (C IV), 6 (8.5%) false negative (C I-II), and 24 (13.8%) suspicious (C III) cytological findings. All but one of the false negative cytological findings were from superficial lymph nodes. No complications occurred. USguided lymph node aspiration biopsy is safe and accurate in the superficial, anterior mediastinal, abdominal, and retroperitoneal lymphonodal areas. Lymph nodes with a C 0 cytological result should undergo rebiopsy and suspicious (C III) or clinically doubtful cases should be referred for a surgical biopsy.

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