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PubMed · 4074914

Prostatic carcinoma: staging with percutaneous lymph node biopsy.

J H Göthlin
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Abstract

Percutaneous, transperitoneal fine needle biopsy was performed on 10 pelvic lymph nodes in each patient with clinical early stage prostatic carcinoma and normal pedal lymphogram. In 11 of 54 patients (20%) micrometastases were found cytologically. This figure corresponds fairly well with results obtained at internal (surgical) biopsy and at lymphadenectomy. Fine needle biopsy may not detect micrometastases in all patients having metastatic deposits but the procedure can be used for excluding patients from elective surgery. The procedure is non-hazardous and inexpensive. Of course, negative cytology cannot be used with security for clinical management.

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Biopsy, NeedleCarcinomaCytodiagnosisHumansLymph NodesLymphatic MetastasisLymphographyMaleNeoplasm StagingPelvisPeritoneumPrognosisProstatic NeoplasmsComparative StudyJournal Article

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BibTeXRIS

J H Göthlin. 1985. Prostatic carcinoma: staging with percutaneous lymph node biopsy.. https://pubmed.ncbi.nlm.nih.gov/4074914/

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Targeting difficult accessible breast lesions: MRI-guided needle localization using a freehand technique in a 3.0 T closed bore magnet.

PURPOSE: To report the accuracy of magnetic resonance imaging (MRI)-guided needle localization for diagnosis of MRI detected suspicious breast lesions located in difficult accessible regions of the breast, using the freehand method in a 3.0 T closed bore magnet. MATERIALS AND METHODS: In five patients with five MRI-only breast lesions underwent MRI-guided needle localization for histopathologic evaluation of the lesions. All interventional procedures were performed in a 3.0 T MRI system with the patient in prone position and by using a dedicated phased array breast coil. MRI-guided needle localizations were performed by using a freehand technique. In our study, the high-resolution scan allowed preprocedural localization of all lesions without use of contrast enhancement. In all cases contrast-enhanced MRI was performed after insertion of the wire to confirm the tip of the wire in direct contact with the enhancing lesion. RESULTS: Needle localizations were performed in five patients. Histopathologic evaluation of tissue after surgery excision biopsy revealed one lymph node, three invasive ductal carcinoma and one ductal carcinoma in situ. Lesion size varied from 6 to 30 mm. Mean duration time was 25 min. No complications occurred during the intervention method. In the patient with the benign lesion control MRI of the breast after 6 months confirmed lesion removal. CONCLUSIONS: MRI-guided needle localization by using a freehand technique in a 3.0 T closed bore magnet is a safe and accurate method for diagnosis of difficult accessible breast lesions only visible on MRI.

Biopsy, Needle↗