Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
The selection of a material for a specific engineering purpose is a lengthy and expensive process... more The selection of a material for a specific engineering purpose is a lengthy and expensive process. Approximately always more than one material is suitable for an engineering application, and the final selection is a compromise that brings some advantages as well as disadvantages. One of the issues that emerges from this review is that regardless of the relation of design stages and process selection with material selection, screening and ranking are two vital steps in the material selection. A variety of quantitative selection procedures have been developed to solve this issue, so that a systematic evaluation can be made. This paper seeks to address the following questions: (1) what is the contribution of the literature in the field of screening and choosing the materials? (2) What are the methodologies/systems/tools for material selection of engineering components? (3) Which approaches were prevalently applied? (4) Is there any inadequacy of the approaches? This research not only provides evidence that the multi-criteria decision making approaches has the potential to greatly improve the material selection methodology, but also aids the researchers and decision makers in applying the approaches effectively.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent l... more Haemangiomas involving the internal auditory meatus (IAM) are rare and can mimic other frequent lesions of the IAM such as schwannomas by their clinical and imaging aspects. The case of a patient with an atypical IAM haemangioma fluctuating in size is reported to highlight this diagnostic possibility. A 36-year-old female presented with a sudden and recurrent left sensorineural hearing loss (SNHL). Three consecutive MRIs were performed in a 10-month period of preoperative observation. They showed a fluctuation of the tumour signal and size. The surgical removal was performed via a translabyrinthine approach. Pathological findings were consistent with the diagnosis of a heamangioma. MRI and CT findings suggested the diagnosis of IAM heamangioma, but the rapid variation in size and signal was misleading. This phenomenon may be due to haemorrhage or oedema, and can be accompanied by a deterioration of the hearing function. Early surgical resection is the treatment of choice and allows to confirm the diagnosis.
The selection of a material for a specific engineering purpose is a lengthy and expensive process... more The selection of a material for a specific engineering purpose is a lengthy and expensive process. Approximately always more than one material is suitable for an engineering application, and the final selection is a compromise that brings some advantages as well as disadvantages. One of the issues that emerges from this review is that regardless of the relation of design stages and process selection with material selection, screening and ranking are two vital steps in the material selection. A variety of quantitative selection procedures have been developed to solve this issue, so that a systematic evaluation can be made. This paper seeks to address the following questions: (1) what is the contribution of the literature in the field of screening and choosing the materials? (2) What are the methodologies/systems/tools for material selection of engineering components? (3) Which approaches were prevalently applied? (4) Is there any inadequacy of the approaches? This research not only provides evidence that the multi-criteria decision making approaches has the potential to greatly improve the material selection methodology, but also aids the researchers and decision makers in applying the approaches effectively.
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