OBJECTIVE The purpose of our study was to provide new sonographic criteria for fine-needle aspiration biopsy of nonpalpable solid thyroid nodules. MATERIALS AND METHODS Sonographic scans of 155 nonpalpable thyroid nodules in 132 patients were prospectively classified as having positive or negative findings. Sonographic findings that suggested malignancy included microcalcifications, an irregu...

BACKGROUND Puncture biopsy and fine needle aspiration guided by endoscopic ultrasound has been used as an effective technique and is quickly becoming the procedure of choice for diagnosis and staging in patients suspected of having pancreatic cancer. This procedure has replaced retrograde cholangiopancreatography and brush cytology due to its higher sensitivity for diagnosis, and lower risk of ...

BACKGROUND Fine needle aspiration biopsy (FNAB) is a rapid, sensitive and inexpensive procedure for diagnosing benign and malignant palpable lesions. For lesions that are not palpable or deep seated, FNAB can be performed under the guidance of radiological imaging. Our basic objective was to evaluate the spectrum of intrathoracic lesions by using Computed Tomography guided fine needle aspiratio...

Endoscopic ultrasound-guided fine needle aspiration-biopsy is a safe and effective technique in diagnosing and staging of pancreatic ductal adenocarcinoma. However its predictive negative value does not exceed 50% to 60%. Unfortunately, the majority of pancreatic cancer patients have a metastatic and/or a locally advanced disease (i.e., not eligible for curative resection) which explains the li...

Fine needle aspiration cytology of superficial as well as of deep seated lesions is now well recognized in diagnosis of neoplastic as well as nonneoplastic and inflammatory lesions. Recently it has also gained popularity for its diagnostic and therapeutic role in male infertility. The purpose of this article was to review various studies published on role of testicular fine needle testicular cy...

BACKGROUND Breast screening is a method of detecting breast cancer at a very early stage. Most of the lesions detected by screening are not malignant. Objective of this study was to compare ultrasound guided fine needle aspiration cytology and core biopsy in the preoperative assessment of non-palpable breast lesions. METHODS The study was conducted prospectively at Department of Radiology, Sh...

We report a case of large iris melanocytoma in a child diagnosed by fine needle aspiration biopsy. In this interventional case report, cytologic features typical of melanocytoma were obtained by fine needle aspiration biopsy (FNAB). FNAB can be used in difficult diagnostic cases if a good sample is obtained, this technique has an accuracy of more than 99% in tumors larger than 3 mm; however, fa...

BACKGROUND/AIMS Tuberculous peritonitis is prevalent in developing countries and its diagnosis is still challenging due to the lack of specific clinical characteristics and the difficulty in obtaining tissue from the peritoneum without laparoscopy. Endoscopic ultrasound - guided fine needle aspiration is emerging as the most effective and safe method for obtaining tissue from the structures sur...

Giant cell tumor of soft tissue is an uncommon neoplasm. To our knowledge, its cytopathology obtained using the fine-needle aspiration biopsy technique has not been previously described. We report an example of the fine-needle aspiration cytology of giant cell tumor of soft tissue in a 40-year-old woman, and correlate it with the corresponding tissue specimen.