background: intervertebral disc herniation has two common types, extrusion and protrusion, which may affect the adjacent vertebrae.in addition, it is associated with significant signal changes in t1 mri (short tr/te) and t2 mri (long tr/te).   methods: the present study is a cross-sectional analytic one, in which sampling was performed retrospectively. cases were randomly selected from the pati...

The ventriculoperitoneal (VP) shunt has been one of the primary methods for treating hydrocephalus many years and is most frequent surgical interventions performed in neurosurgery using a variety techniques different VP types. Consequently, insertion associated with complications, including failure, functional mechanical failure such as migration. Shunt migration to gastrointestinal or urogenit...

We reported two cases of clinically typical melasma presenting with unusual histopathologic findings. In one case, the epidermal melanocytes were markedly increased in number and protruded into the dermis, and in the other case, increased epidermal pigmentation as well as dermal melanocytosis were found. We suggested that the various treatment modalities of melasma should be applied depend on i...

Arcing was ignited on deformed tungsten (W) surfaces, where W fuzz and/or nano-tendril bundles (NTBs) were grown, by steady state helium (He) plasma exposures with impurity gas seeding. At the same sample potential of −250 V, presence NTBs enhanced frequency arc ignition, whereas no ignition appeared typical surfaces without NTBs. After a series ignitions surface NTBs, aspect ratio decreased, i...

BACKGROUND Intervertebral disc herniation has two common types, extrusion and protrusion, which may affect the adjacent vertebrae.In addition, it is associated with significant signal changes in T1 MRI (short TR/TE) and T2 MRI (long TR/TE). METHODS The present study is a cross-sectional analytic one, in which sampling was performed retrospectively. Cases were randomly selected from the patien...

Traumatic Dental Injury (TDI) is often caused by a bruise from a sports-related incident or fall. In individuals with maxillary protrusion, the risk for TDI may be higher. We treated a patient with Hereditary Gingival Fibromatosis (HGF), a rare genetic disorder characterized by proliferative fibrous overgrowth of gingival tissue, who subsequently received a TDI after periodontal surgery. A 13-y...

  During fixation of a femoral neck fracture in a 23-year-old male patient with cannulated screws, a broken guide wire fragment inadvertently advanced through the hip joint and protruded into the pelvis. A second surgical approach was needed to remove the broken fragment from the pelvis. Awareness of such a potentially devastating complication will make surgeons more cautious during implementa...

during fixation of a femoral neck fracture in a 23-year-old male patient with cannulated screws, a broken guide wire fragment inadvertently advanced through the hip joint and protruded into the pelvis. a second surgical approach was needed to remove the broken fragment from the pelvis. awareness of such a potentially devastating complication will make surgeons more cautious during implementatio...

A high transmittance polymer-stabilized blue-phase liquid crystal display with floating electrodes in conjunction with protruded electrodes is proposed. The floating electrodes help to confine the electric field and reduce the dead zone areas. As a result, the peak transmittance over 90% is achieved. Author

An electron microscopic study of human natural killer (NK) cells showed abundant cytoplasm and relatively large mitochondria. They also had various kinds of granules in their cytoplasm. The mode of binding to the tumor cell (K 562) was tight, and villi protruded from NK cells to the target cells. Some traget cells were already lysed after incubation for 5 minutes at 4°C.