No abstract available.
Biopsy, Large-Core Needle* ; Thyroid Gland*

A pseudoaneurysm of the breast after a core needle biopsy is an extremely rare vascular complication. We report one case of a breast pseudoaneurysm that developed after an ultrasound-guided core needle biopsy. The ultrasound appearance, prevention and treatment of a breast pseudoaneurysm are discussed.
Aneurysm, False ; Biopsy, Large-Core Needle ; Breast

No abstract available.
Biopsy, Large-Core Needle* ; Thyroid Gland*

Pseudoaneurysm of the breast is rare. To date only a, few cases related to blunt trauma, core needle biopsy, vacuum-assisted biopsy, or surgery have been reported. The author reports on a case of pseudoaneurysm after 14-gauge core needle biopsy, which was treated successfully with manual compression.
Aneurysm, False ; Biopsy ; Biopsy, Large-Core Needle ; Breast ; Needles

We report here on a case of nodular fasciitis (NF) that was diagnosed by ultrasonography (US)-guided core needle biopsy in a 31-year-old man, and we include the US and computed tomographic (CT) findings and the histopathologic findings at US-guided core needle biopsy (CNB). We suggest that high-resolution US is useful for the detailed evaluation of NF in the superficial regions, such as the face, and US-guided CNB is useful for the definitive histologic diagnosis of NF without causing scarring.
Adult ; Biopsy, Large-Core Needle* ; Cicatrix ; Diagnosis ; Fasciitis* ; Humans ; Ultrasonography

No abstract available.
Biopsy, Large-Core Needle* ; Thyroid Gland* ; Thyroid Neoplasms ; Thyroid Nodule

PURPOSE: Fine needle aspiration cytology (FNAC) is an established, highly accurate method for diagnosing breast lesions. However, core needle biopsy (CNB) is being increasingly used in this setting. The purpose of this study was to evaluate the accuracy of both methods and to assess which is more proper as an initial diagnostic method for palpable breast masses. METHODS: The authors performed 403 FNACs and 226 CNBs in palpable breast masses between January 2002 and December 2002. The cytologic diagnoses were classified into three groups: malignant, suspicious or benign, and the histologic diagnoses were classified into three groups: malignant, atypical or benign. Histological conformation was obtained in 123 aspirated cases and 69 biopsied cases, either by open biopsy or mastectomy. RESULTS: FNAC and CNB did equally well for the specificity (98.4% vs 100%), the false positive rate (1.6% vs 0%), and the positive predictive value (97.4% vs 100%) for malignancy. However, statistical differences are found for the sensitivity (63.8% vs 92.5%; P=0.000), the false negative rate (36.2% vs 7.5%; P=0.000), and the diagnostic accuracy (81.8% vs 92.4%; P=0.006). CONCLUSION: For palpable breast masses, CNB has a higher sensitivity, diagnostic accuracy and lower false negative rate than FNAC. Our study suggests that CNB is a useful initial diagnostic tool for assessing a breast mass before establishing a treatment strategy.
Biopsy ; Biopsy, Fine-Needle ; Biopsy, Large-Core Needle ; Breast ; Sensitivity and Specificity

PURPOSE: Accurate grading of tumor is critical for administering the correct prostate cancer treatment. Meanwhile, the concordance of Gleason scores (GS) between sextant prostate needle biopsy and the radical prostatectomy (RP) specimen is known to be poor. We investigate if extended needle biopsy could improve the cancer detection rate and GS accuracy. MATERIALS AND METHODS: A total 826 consecutive patients each underwent 12 core prostate biopsies guided by TRUS. Of these patients, 136 consecutive patients underwent RP. Of the systemic 12 cores, we compared the subset of standard sextant cores, the set of lateral sextant cores and the 12 core set. RESULTS: The biopsy were positive in 218 cases (26.4%), 213 cases (25.7%) and 265 cases (32%) for the standard sextant, lateral sextant and twelve core biopsy, respectively. Concordance between prostate biopsy and prostatectomy GS was observed in 71 of 104 cases (68.3%), 80 of 110 cases (72.7%) and 98 of 136 cases (72.1%) for the standard sextant, lateral sextant and twelve core biopsy, respectively. Upgrading of 1 or more points was done in 26 of 104 cases (25.0%), 19 of 110 cases (17.3%) and 26 of 136 cases (19.1%), and downgrading 1 or more point was done in 7 of 104 cases (6.7%), 11 of 110 cases (10.0%) and 12 of 136 cases (8.8%) with the standard sextant, lateral sextant and twelve core biopsy, respectively. CONCLUSIONS: Twelve core needle biopsies lead to a higher cancer detection rate than do the sextant and lateral sextant needle biopsies. Twelve core and lateral sextant needle biopsies lead to higher concordance of the needle biopsy and surgical specimen GS compared with the standard sextant needle biopsy.
Biopsy* ; Biopsy, Large-Core Needle ; Biopsy, Needle* ; Humans ; Needles* ; Prostate* ; Prostatectomy* ; Prostatic Neoplasms

PURPOSE: The objective of this study is to evaluate the efficacy and safety of an ultrasound-guided core needle biopsy with an 18G cutting needle in patients suspected of having a pancreatic disease by analyzing the diagnostic performance and complication rate. MATERIALS AND METHODS: The study population comprised 35 consecutive patients who underwent an ultrasound-guided core needle biopsy using a high-speed biopsy gun accompanied with an 18G cutting-type needle between May of 2001 and October of 2005. The diagnostic performance (i.e., the acquisition rate and diagnostic accuracy) and complications associated with core needle biopsies were evaluated for its efficacy and safety. RESULTS: Thirty-six sessions of ultrasound-guided core needle biopsies were performed in 35 consecutive patients. All patients, except two (serous cystadenoma and autoimmune pancreatitis) were diagnosed with various subtypes of pancreatic cancer. The acquisition rate and diagnostic accuracy were 97% (35/36) and 94% (34/36), respectively. A complication occurred only in one patient (3%), which further proved to be a delayed complicaton (i.e., needle tract implantation). CONCLUSION: According to our findings, the ultrasound-guided core needle biopsy is a viable and safe method for the dignosis of pancreatic diseases. Moreover, it enables the diagnosis of the pancreatic cancer subtype.
Biopsy ; Biopsy, Large-Core Needle ; Biopsy, Needle ; Cystadenoma ; Humans ; Needles ; Pancreas ; Pancreatic Diseases ; Pancreatic Neoplasms

Ultrasonography (US)-guided fine needle aspiration biopsy (FNAB) is widely considered to be the diagnostic technique of choice in the assessment of nodular disease of the thyroid gland. Although the accuracy of FNAB analysis approaches 95% where there is an adequate sample, non-diagnostic sampling occurs in 10-20% of cases. Additionally, equivocal pathological results are obtained in 10-30% of cases, and there are limitations in detecting subtypes of certain diseases, such as lymphoma. Generally, US-guided core needle biopsy (CNB) allows for the procurement of a large, grossly visible specimen and a more precise pathological diagnosis. Therefore, US-guided CNB is indicated in the following situations: 1) when an inadequate specimen is obtained by FNAB, 2) when FNAB yields indeterminate or inadequate information, 3) when targeting of the lesion is difficult because it is diffuse, and 4) when there is a discrepancy between the imaging findings and the FNAB results. In this article, we describe the situations in which US-guided CNB is useful for diagnosing thyroid lesions.
Biopsy ; Biopsy, Fine-Needle ; Biopsy, Large-Core Needle ; Lymphoma ; Thyroid Gland ; Thyroid Nodule