Fine Needle Aspiration in the Chest under CT Control

Abstract

Over a 42 month period 133 patients underwent 148 CT guided biopsies of 104 pulmonary lesions (78%), 21 mediastinal/hilar masses (16%) and 8 pleural lesions (6%). There were 48 cases (32%) complicated by a pneumothorax, of which 13 (9%) required a chest drain. Two cases each of minor haemopneumothorax (1.4%) and haematoma (1.4%) were found, and haemoptysis occurred in a single patient (0.7%). This low complication rate reflects the use of the 22 gauge Chiba needle, the small number of passes undertaken at each sitting and the wide range of lesion size. In four cases no diagnosis was established either at the time of biopsy or subsequently. There were 100 cases proven to be malignant, of which 81 were diagnosed at the first biopsy. Three further cases were regarded as suspicious of malignancy. Of the 29 patients with benign disease, a specific diagnosis was made in 10 (34%) and nonspecific inflammation was seen in 17 (59%) further patients. Fine needle aspiration under CT control is a useful and accurate diagnostic technique. It has widened the scope of lesions which can be biopsied, enabling small, deep or necrotic parenchymal lesions to be targeted accurately. A precise placement of the needle tip into pleural or mediastinal lesions is a further advantage. However, if an inadequate sample is obtained, the biopsy may need to be repeated.

Two species, one island: Retrospective analysis of threatened fauna translocations with divergent outcomes

“…Unfortunately, no information is available for mainland habitat preferences due to the rapid decline of the species following European settlement [40]. Classified as threatened fauna (Endangered) under the 1992 Commonwealth Endangered Species Protection Act, a Djoongari Recovery Plan was drafted that identified the establishment of a self-sustaining population on another offshore island within the recovery criteria [44]. Doole Island was later identified as the translocation site with the success criteria refined to require the population be self-sustaining within five years with demonstrated population growth [40].…”