Publications by authors named "Nastaran Shahsavari"

Juvenile nasopharyngeal angiofibroma (JNA) is a rare, locally aggressive, highly vascularized benign tumor classically found in males from 13 to 20 years old. The most common clinical presentations are recurrent epistaxis and nasal congestion. Imaging plays a significant role in differentiating and determining the extension of nasopharyngeal lesions.

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Background: Radiosurgical treatment of brain metastases is usually performed without brain tissue confirmation. While it is extremely rare for glioblastoma to develop concurrently in patients with brain metastases, they can look radiographically similar, and recognition is important because it alters management and prognosis. The synchronous presence of brain metastases and glioblastoma has not been published to date in the literature, making this a rare illustrative case.

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Stereotactic radiosurgery (SRS) is the standard of care for patients with a limited number of brain metastases. Despite the fact that the seminal studies regarding SRS for brain metastases were largely tissue agnostic, several current national guidelines do not uniformly recommend SRS in thyroid cancer. We therefore investigated oncological outcomes in a cohort of patients with brain metastases from thyroid cancer who received radiotherapy (RT) at our institution as well as those in a nationally representative cancer cohort, the National Cancer Database (NCDB).

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Objective: The CyberKnife (CK) has emerged as an effective frameless and noninvasive method for treating a myriad of neurosurgical conditions. Here, the authors conducted an extensive retrospective analysis and review of the literature to elucidate the trend for CK use in the management paradigm for common neurosurgical diseases at their institution.

Methods: A literature review (January 1990-June 2019) and clinical review (January 1999-December 2018) were performed using, respectively, online research databases and the Stanford Research Repository of patients with intracranial and spinal lesions treated with CK at Stanford.

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Article Synopsis
  • The study focused on identifying MDCT features related to esophageal varices (EVs) and esophageal variceal hemorrhage (EVH) in cirrhotic patients.
  • The research evaluated MDCT results from 124 patients, correlating the presence and size of collateral veins with the risk of developing EV and EVH.
  • Findings indicated that specific collateral veins, particularly the coronary, short gastric, and paraesophageal veins, were significant predictors of EV and EVH, leading to the development of predictive models based on imaging characteristics.
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