Solid pseudopapillary tumors of the pancreas (SPT) are rare tumors of the pancreas with low malignancy potential and a very good prognostic outcome after surgery. The outcome after radical resection is favourable. A case of solid-pseudopapillary tumor (SPT) of the pancreas in a 20-year-old woman is presented. The patient underwent resection of the mass in the pancreatic head and pancreaticoduod...

a time-of-flight mass spectrometer (tof-ms) developed in our laboratory at isfahan university of technology is described here. the tof-ms instrument uses laser as the ionization source which provides an opportunity to investigate the ions formed in laser ablation or desorption. the tof-ms has an ionization chamber containing an accelerator and an ion lens to focus the ions into a one meter line...

introduction uterine leiomyomas are the most common benign solid tumors of the female pelvis. retroperitoneal myomas are extremely rare and usually malignant with the common location being in the pelvis. case presentation our case involved a woman who was suffering from dysparonia and radiculating right pelvic pain. the pelvic examination revealed a palpable tender mass of about 3-4 cm in size ...

solid pseudopapillary tumors of the pancreas (spt) are rare tumors of the pancreas with low malignancy potential and a very good prognostic outcome after surgery. the outcome after radical resection is favourable. a case of solid-pseudopapillary tumor (spt) of the pancreas in a 20-year-old woman is presented. the patient underwent resection of the mass in the pancreatic head and pancreaticoduod...

Chondrosarcoma is a mesenchymal tumor composed of tumor cells producing cartilage. It is more common in older age and often affects the axial skeleton. We report a rare case of chondrosarcoma mimicking a sellar and suprasellar mass with parasellar extension. A 40 yr woman presented with decreasing visual acuity and headache. Magnetic resonance (MR) image revealed a cystic sellar and suprasellar...

A 37-year-old woman underwent surgery to remove bilateral vulvar masses. The masses were firm, non-tender, and immobile. Pathologic finding was a well-delineated creamy grayish mass with a homogenous grayish solid surface and mild edema, chronic inflammatory infiltration, and focal dilation of the ducts with squamous metaplasia. The diagnosis was hyperplastic and hypertrophied Bartholin’s gland...

We show through rigorous derivation and experimental support that the dynamic effective mass density of an inhomogeneous mixture, used in the prediction of wave velocities in the long wavelength limit, can differ from the static version--the volume average of the component mass densities. The physical reason for this difference is explained. The dynamic mass density expression, first derived by...