The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform

Semih Keskil - One of the best experts on this subject based on the ideXlab platform.

  • Sinonasal Ossifying Fibroma with Fluid-Fluid Levels on MR Images
    2015
    Co-Authors: Ayse Tuba, Simay Kara, Deniz Altinok, Karagulle Kendi, Semih Keskil
    Abstract:

    Summary: Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images. Ossifying fibroma is a rare benign fibrous lesion that was first introduced in the literature by Mont-gomery (1). It mainly develops in the mandible, where it is usually slow growing and asymptomatic, whereas in the midface and paranasal sinuses, it is more ag-gressive (2–4). The presence of fluid-fluid levels in a bone tumor strongly suggests an aneurysmal bone cyst, although fluid-fluid levels are also described in some bone and soft-tissue tumors (5, 6). In a previous report (7), fluid-fluid levels were described in an os-sifying fibroma appearing as an ethmoid mucocele. In our case, a sinonasal ossifying fibroma involved the right side of nasal cavity and extended into the right maxillary sinus, periorbital fat, anterior cranial cavity, and right Torus Tubarius. The nasal-cavity com-ponent of the mass had multiple fluid-fluid levels, as depicted at MR imaging. Knowledge of the possible MR imaging character-istics of this rare tumor helps in the differential diag-nosis of tumors involving the head and neck region. Case Report A 24-year-old female patient presented with headache, swelling of the right eyelid, and a sensation of numbness in the right eye. The patient’s history and family history were unre-markable. On physical examination, right exopthalmos was observed, along with a polypoid mass that filled the right nasal cavity. CT revealed an attenuating mass predominantly located on the right side of nasal cavity. The mass extended to the base of frontal lobe and to the right orbita. MR examination was performed with a 1.5-T MR unit (Mag

  • sinonasal ossifying fibroma with fluid fluid levels on mr images
    2003
    Co-Authors: Ayse Tuba Karagulle Kendi, Simay Kara, Deniz Altinok, Semih Keskil
    Abstract:

    Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images.

Ayse Tuba Karagulle Kendi - One of the best experts on this subject based on the ideXlab platform.

Simay Kara - One of the best experts on this subject based on the ideXlab platform.

  • Sinonasal Ossifying Fibroma with Fluid-Fluid Levels on MR Images
    2015
    Co-Authors: Ayse Tuba, Simay Kara, Deniz Altinok, Karagulle Kendi, Semih Keskil
    Abstract:

    Summary: Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images. Ossifying fibroma is a rare benign fibrous lesion that was first introduced in the literature by Mont-gomery (1). It mainly develops in the mandible, where it is usually slow growing and asymptomatic, whereas in the midface and paranasal sinuses, it is more ag-gressive (2–4). The presence of fluid-fluid levels in a bone tumor strongly suggests an aneurysmal bone cyst, although fluid-fluid levels are also described in some bone and soft-tissue tumors (5, 6). In a previous report (7), fluid-fluid levels were described in an os-sifying fibroma appearing as an ethmoid mucocele. In our case, a sinonasal ossifying fibroma involved the right side of nasal cavity and extended into the right maxillary sinus, periorbital fat, anterior cranial cavity, and right Torus Tubarius. The nasal-cavity com-ponent of the mass had multiple fluid-fluid levels, as depicted at MR imaging. Knowledge of the possible MR imaging character-istics of this rare tumor helps in the differential diag-nosis of tumors involving the head and neck region. Case Report A 24-year-old female patient presented with headache, swelling of the right eyelid, and a sensation of numbness in the right eye. The patient’s history and family history were unre-markable. On physical examination, right exopthalmos was observed, along with a polypoid mass that filled the right nasal cavity. CT revealed an attenuating mass predominantly located on the right side of nasal cavity. The mass extended to the base of frontal lobe and to the right orbita. MR examination was performed with a 1.5-T MR unit (Mag

  • sinonasal ossifying fibroma with fluid fluid levels on mr images
    2003
    Co-Authors: Ayse Tuba Karagulle Kendi, Simay Kara, Deniz Altinok, Semih Keskil
    Abstract:

    Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images.

Deniz Altinok - One of the best experts on this subject based on the ideXlab platform.

  • Sinonasal Ossifying Fibroma with Fluid-Fluid Levels on MR Images
    2015
    Co-Authors: Ayse Tuba, Simay Kara, Deniz Altinok, Karagulle Kendi, Semih Keskil
    Abstract:

    Summary: Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images. Ossifying fibroma is a rare benign fibrous lesion that was first introduced in the literature by Mont-gomery (1). It mainly develops in the mandible, where it is usually slow growing and asymptomatic, whereas in the midface and paranasal sinuses, it is more ag-gressive (2–4). The presence of fluid-fluid levels in a bone tumor strongly suggests an aneurysmal bone cyst, although fluid-fluid levels are also described in some bone and soft-tissue tumors (5, 6). In a previous report (7), fluid-fluid levels were described in an os-sifying fibroma appearing as an ethmoid mucocele. In our case, a sinonasal ossifying fibroma involved the right side of nasal cavity and extended into the right maxillary sinus, periorbital fat, anterior cranial cavity, and right Torus Tubarius. The nasal-cavity com-ponent of the mass had multiple fluid-fluid levels, as depicted at MR imaging. Knowledge of the possible MR imaging character-istics of this rare tumor helps in the differential diag-nosis of tumors involving the head and neck region. Case Report A 24-year-old female patient presented with headache, swelling of the right eyelid, and a sensation of numbness in the right eye. The patient’s history and family history were unre-markable. On physical examination, right exopthalmos was observed, along with a polypoid mass that filled the right nasal cavity. CT revealed an attenuating mass predominantly located on the right side of nasal cavity. The mass extended to the base of frontal lobe and to the right orbita. MR examination was performed with a 1.5-T MR unit (Mag

  • sinonasal ossifying fibroma with fluid fluid levels on mr images
    2003
    Co-Authors: Ayse Tuba Karagulle Kendi, Simay Kara, Deniz Altinok, Semih Keskil
    Abstract:

    Ossifying fibroma is a rare benign neoplasm that usually affects mandibular and maxillary bones. In this report, we present a case of sinonasal ossifying fibroma with fluid-fluid levels and posterior extension toward the Torus Tubarius on MR images.

Nyall R London - One of the best experts on this subject based on the ideXlab platform.

  • role of resection of Torus Tubarius to maximize the endonasal exposure of the inferior petrous apex and petroclival area
    2021
    Co-Authors: Nyall R London, Daniel M Prevedello, Ricardo L Carrau
    Abstract:

    Endoscopic access to the petrous apex and petroclival region often requires sacrificing the Eustachian tube (ET). This study aimed to compare the maximum exposure of the petrous apex and petroclival region via an endonasal corridor when sparing or resecting the ET and its Torus. Six cadaveric specimens (12 sides) were dissected through an endonasal transpterygoid approach. Endonasal exposure of the petroclival region was completed using techniques that included the preservation of the ET (group 1), resection of the Torus Tubarius (group 2), and resection of the ET (group 3) were sequentially performed on each side. The working distances from the anterior genu of the petrous internal carotid artery (ICA) to the inferior boundaries of each corridor were measured and compared. In group 1, the medial petrous apex and petroclival sulcus could be exposed with a working distance of 4.08 ± 0.67 mm. In group 2, the fossa of Rosenmuller, inferior petrous apex, and hypoglossal canal could be exposed, with a significantly increased working distance of 18.33 ± 0.89 mm (P = .001). In group 3, the exposure and ICA control was superior and offered a working distance of 20.67 ± 0.78 mm. No statistically significant difference derived from comparing groups 2 and 3 (P = .875). Resection of the Torus Tubarius can increase exposure of the petrous apex and petroclival region. It provides an alternative to resecting the ET, which might be beneficial for maintenance of middle ear function. ET resection, however, seems superior when ICA control is required.