Abstract Background Anatomic variation may increase the difficulty and risk of anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography angiography (3D-CTBA) can provide a detailed model segmental structure, contribute to precise safe Case presentation This is case anomalous bronchi pulmonary vessels in right upper posterior segment (RS 2 ). Under guidance 3D...

BACKGROUND Anatomic limb alignment often differs from mechanical limb alignment after total knee arthroplasty (TKA). We sought to assess the accuracy, specificity, and sensitivity for each of three commonly used ranges for anatomic limb alignment (3-9°, 5-10° and 2-10°) in predicting an acceptable range (neutral ± 3°) for mechanical limb alignment after TKA. We also assessed whether the accurac...

most mandibular second molars have one and two canals in distal and mesial roots, respectively. this report represents four cases of mandibular second molars with a single mesial and two distal root canals with two different canal configurations. after access cavity preparation, two teeth had one distal and two mesial orifices, whereas in the two other teeth one mesial and two distal orifices w...

The chorda tympani is an important anatomical structure in the tympanic cavity. It may have some anatomic variations. Its anatomic variations are of interest in certain otologic surgical procedures. There are limited reports in the literature about the variations of the chorda tympani. A 49-year-old female patient was refered to our clinic because of conductive hearing loss and tympanic membran...

OBJECTIVES/HYPOTHESIS To illustrate that a truncus bicaroticus and an elongated truncus brachiocephalicus are underestimated anatomic variations; and to highlight the risk of injury of these vessel anomalies during routine surgical interventions. DATA SOURCE Report of a woman with long-term ventilation who was planned for conventional surgical tracheostomy. Due to a strong pulsatile vessel cr...