An aspiration system, incorporating a regulated vacuum pump, was used to examine, in vitro, some factors that may affect oocyte collection. In an open aspiration system, as the length of the needle was increased, or the internal diameter decreased, the velocity (and flow rate) of aspirated fluid decreased. There was a difference, however, between experimental flows and those predicted by Hagen-...

CONTEXT Endoscopic ultrasound has proved to be an invaluable tool when obtaining high quality images of the pancreas. Furthermore, fine-needle aspiration of suspected lesions can be carried out simultaneously thus providing tissue samples for cytologic diagnosis. We present two cases of a rare pancreatic lesion that were diagnosed by endoscopic ultrasound with fine-needle aspiration. CASE #1: A...

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.

Endoscopic ultrasonography guided fine needle aspiration is a useful diagnostic aid in evaluation of cystic pancreatic mass. We report our patient with pancreatic tuberculous abscess who presented with pyrexia, and was found to have cystic pancreatic mass on CT scan. Pancreatic tuberculous abscess was diagnosed with the help of endoscopic ultrasound (EUS)-guided fine needle aspiration cytology ...

56 malignant bone neoplasms (15 primary and 41 metastatic), diagnosed by fine-needle aspiration biopsy, are reported. 100% diagnostic accuracy was achieved. The results indicate that fine-needle aspiration biopsy can be a substitute for open surgical biopsy in selected cases.

A 46-year-old man presented with shock and adult respiratory distress syndrome. Investigations revealed an adrenal mass that was diagnosed, by fine-needle aspiration biopsy, as pheochromocytoma. Because biopsy is contraindicated in patients with pheochromocytoma, this confusing presentation underscores the value of excluding this diagnosis by biochemical means before performing fine-needle aspi...