Neuropathy of the mental nerve, also referred to as numb chin syndrome (NCS), is a rare finding that demands for accurate differential diagnosis and therapy. This is a report of two patients with a history of colonic cancer, who experienced a progressive hypaesthesia of one side of the corner of the mouth, lower lip and chin, associated with intermittent phases of pain some weeks prior to admis...

although esophageal liposarcoma is an extremely rare tumor, liposarcoma is the most common soft tissue sarcoma in adults. liposarcoma is currently classified into the types of well-differentiated, myxoid, round cell, pleomorphic and dedifferentiated liposarcoma. up to now only a few cases of esophagus liposarcoma have been described in the world literature. we describe a myxoid type liposarcoma...

Background: Stem cell therapy for the treatment of vascular-related diseases through functional revascularization is one of the most important research areas in tissue engineering. The aim of this study was to investigate the in vitro differentiation of umbilical CL-MSC into endothelial lineage cells. Methods: In this study, isolated cells were characterized for expression of MSC-specific marke...

introduction: this study was carried out to compare the capability of k-files with mtwo rotary file in terms of negotiation as well as depth of penetration in second mesiobuccal (mb2) canal of maxillary first molar. materials and methods: a total of 32 mb2 canal of maxillary first molars having different root curvatures (not more than 30 degree) and root lengths were selected and then detected ...

the ground connection between iran and egypt was established long before the achaemenid period. many unsuccessful efforts were also made by egyptian pharaohs to establish maritime connections before the achaemenids. with the conquest of egypt by cambyses (529-522 b.c), in the year 525 b.c, it was under the rule of achaemenids. after the death of cambyses, darius i (522-486 b.c) defeated the gau...

Many hearing aid users experience physical discomfort when wearing their device. The main contributor to this problem is believed to be deformation of the ear and ear canal caused by movement of the mandible. Physical discomfort results from added pressure on soft tissue areas in the ear. Identifying features that can predict potential deformation is therefore important for identifying problema...

Abstract Rhabdomyosarcoma is the most common sarcoma of childhood, and this tumor third neoplasm after neuroblastoma nephroblastoma. Rhabdomyosarcomas may originate in any anatomical site, occurring predominantly head neck regions, orbits, skull base, nasal cavity, nasopharynx, where there little or no musculoskeletal tissue. The involvement ear mastoid bone rhabdomyosarcoma uncommon. embryonal...