نتایج جستجو برای: acoustic schwannoma
تعداد نتایج: 90482 فیلتر نتایج به سال:
Multi-segment Facial Nerve Schwannoma (MFNS) is a very rare tumor, benign in nature and can arise anywhere along the course of facial nerve from its origin cerebello-pontine angle to extra cranial ramification parotid space head neck. It mimic like vestibular schwannoma other schwannoma. The most common clinical presentation palsy depending upon segment involved. We report case multi-segment ex...
Schwannoma is a tumor of soft tissue originating from Schwann cells that rarely appears in the retroperitoneum. Presentation depends on site disease leading to mostly pressure symptoms, sometimes with distal manifestations. Because its complex location, it has varied presentations and always diagnostic dilemma. We reported rare case retroperitoneal schwannoma having mild difficulty walking due ...
Brain parenchyma schwannoma is a rare intracranial tumor, and especially rare in cerebellar hemisphere. In this report, a case of cerebellar schwannoma in a 52-year-old woman, was studied by computed tomography (CT), magnetic resonance image (MRI) and PET-CT. This tumor was totally removed by surgery. The histological diagnosis of schwannoma was confirmed by histological, HE and immunohistologi...
Schwannoma is well-known as a benign tumor originating from the Schwann cells, which produce insulating myelin sheath to cover peripheral nerves. It could occur in any nerve region, typically in the extremities, spinal cord and central nervous system (1). In the literature, only few cases of rectal schwannoma have been reported (2-8). The surgical approaches, including abdominoperineal resectio...
We present a 77-year woman with a size of 9.5x9x7cm giant ancient schwannoma located in the lower arm. Increased activity accumulation in the tumor was seen on the Tc-99m-methylene diphosphonate bone scintigraphy. After excision of the tumor, Pathologic diagnosis could be illustrated as an ancient schwannoma. Previous studies reported that Schwannoma could be demonstrated with increased Tc-99m-...
schwannomas may occur anywhere in the soft tissues or viscera, but do not commonly involve the pancreas and retroperitoneum. we present a case of benign pancreatic schwannoma which clinically simulated a malignant neoplastic process.
INTRODUCTION Schwannoma is a benign, solitary, and slowly progressive encapsulated tumor originating from the sheath of myelinated nerve fibers. Schwannoma of the salivary gland is a particularly rare form of an extracranial neurogenic tumor. Here, we present an unusual case of a schwannoma of the submandibular gland in a 19-year-old man. Total excision of the submandibular gland resulted in co...
Intraoral ancient schwannoma is a rare type of oral schwannoma, which is encapsulated and well demarcated from the surrounding tissues. Ancient schwannomas are associated with conventional features of neurilemmoma; however, they are distinguished from other types of schwannoma due to factors such as the long history, cellular architecture showing hypocellularity, and hyalinized matrices. This s...
Benign nerve cell tumors include schwannoma, which rarely has an intraoral presentation. Schwannoma is a relatively uncommon, slow-growing benign tumor that is derived apparently from the schwann cells. It's an asymptomatic tumor which may sometimes present with pain. The tongue is the most common site, followed by palate, floor of mouth, buccal mucosa, lips, and jaws. Usually it is a solitary ...
A 37-year-old woman presented with an extremely rare large oculomotor schwannoma associated with acute hydrocephalus manifesting as semicoma and anisocoria. Brain computed tomography and magnetic resonance imaging revealed a tumor in the oculomotor cistern. Cerebral angiography revealed separation of the posterior cerebral artery (PCA) and superior cerebellar artery (SCA). The tumor was removed...
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