Bitemporal Hemianopsia

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform

Elisabeth J. Rushing - One of the best experts on this subject based on the ideXlab platform.

  • synchronous pituitary adenoma and pituicytoma
    Human Pathology, 2016
    Co-Authors: Marian Christoph Neidert, Henning Leske, Jankarl Burkhardt, Luca Regli, David Capper, Spyros Kollias, Daniel Schrimpf, Elisabeth J. Rushing
    Abstract:

    Pituicytoma is a rare benign neoplasm arising in the sellar region, usually found in the posterior lobe and/or pituitary stalk. Here, we report the case of a 67-year-old woman who presented with Bitemporal Hemianopsia and visual impairment accompanied by mildly elevated prolactin. Pathologic and molecular examination of the tissue removed transsphenoidally revealed 2 distinct tumors: pituitary adenoma and pituicytoma. To the best of our knowledge, histologically proven pituicytoma and pituitary adenoma have never been reported together.

Patrick J. Codd - One of the best experts on this subject based on the ideXlab platform.

  • transnasal transsphenoidal elevation of optic chiasm in secondary empty sella syndrome following prolactinoma treatment
    World Neurosurgery, 2018
    Co-Authors: Mary Inping Huang Cobb, Matthew G Crowson, Rachael A Mintzcole, Aatif M Husain, Miles Berger, David W Jang, Patrick J. Codd
    Abstract:

    Background Prolactinomas are typically treated nonsurgically with a dopamine agonist. Once the tumor shrinks, adjacent eloquent structures, such as the optic apparatus, can become skeletonized and herniate into the dilated parasellar space. Case Description A 48-year-old man with a prolactin-secreting macroadenoma treated with cabergoline presented with progressive Bitemporal Hemianopsia. Magnetic resonance imaging showed no recurrence of disease and a stretched optic chiasm herniating into an empty sella. Elevation of the optic chiasm via a transnasal transsphenoidal approach with ALLODERM graft and septal cartilage strut was performed. The patient was discharged home the next day with significant improvement in vision; magnetic resonance imaging showed interval elevation of the optic chiasm. Conclusions We review secondary empty sella syndrome and discuss surgical strategies for optic chiasmapexy.

David J. Gross - One of the best experts on this subject based on the ideXlab platform.

  • Pituitary Macroadenoma Secreting Thyrotropin and Growth Hormone: Remission of Bihormonal Hypersecretion in Response to Lanreotide Therapy
    Pituitary, 2001
    Co-Authors: Ilan Shimon, Dvora Nass, David J. Gross
    Abstract:

    We report a case of mixed TSH- and GH-secreting pituitary adenoma in a 60-year-old female patient. She presented with Bitemporal Hemianopsia and large invasive pituitary macroadenoma. Blood hormone levels determinations revealed elevated thyroid hormones, TSH, and IGF-1 with a relatively low GH. The patient had a mild acromegalic appearance but did not display signs of thyrotoxicosis or goiter. She underwent two pituitary surgical procedures followed by radiotherapy, but despite treatment was still hormonally active. Pathological examination of the resected tumor immunostained positively for both TSH and GH. The patient was subsequently treated with injections of lanreotide, a depot long-acting somatostatin analog, resulting in suppression of blood TSH, thyroid hormones, α-subunits, GH and IGF-1.

Kazunori Arita - One of the best experts on this subject based on the ideXlab platform.

  • Xanthogranuloma in the Suprasellar Region : Case Report
    2020
    Co-Authors: Sei Sugata, Hirofumi Hirano, Kazutaka Yatsushiro, Shunji Yunoue, Katsumi Nakamura, Kazunori Arita
    Abstract:

    A 26-year-old man presented with a xanthogranuloma located exclusively in the suprasellar region manifesting as general fatigue, Bitemporal Hemianopsia, and polyuria. Endocrinological examination disclosed severe hypopituitarism. Magnetic resonance imaging demonstrated a clearly defined suprasellar mass that was heterogeneously enhanced after gadolinium administration and was markedly hypointense on T 2 -weighted images. The tumor was subtotally removed under a preoperative diagnosis of craniopharyngioma. Histological examination found fibrous tissue with abundant cholesterol clefts, multinucleated giant cells, and hemosiderin deposits, but no epithelial cells. Xanthogranulomas of the sellar region are reported to be predominantly located in the sella turcica, but should be included in the differential diagnosis even in cases of suprasellar mass lesions.

  • Xanthogranuloma in the suprasellar region.
    Neurologia Medico-chirurgica, 2009
    Co-Authors: Sei Sugata, Hirofumi Hirano, Kazutaka Yatsushiro, Shunji Yunoue, Katsumi Nakamura, Kazunori Arita
    Abstract:

    A 26-year-old man presented with a xanthogranuloma located exclusively in the suprasellar region manifesting as general fatigue, Bitemporal Hemianopsia, and polyuria. Endocrinological examination disclosed severe hypopituitarism. Magnetic resonance imaging demonstrated a clearly defined suprasellar mass that was heterogeneously enhanced after gadolinium administration and was markedly hypointense on T2-weighted images. The tumor was subtotally removed under a preoperative diagnosis of craniopharyngioma. Histological examination found fibrous tissue with abundant cholesterol clefts, multinucleated giant cells, and hemosiderin deposits, but no epithelial cells. Xanthogranulomas of the sellar region are reported to be predominantly located in the sella turcica, but should be included in the differential diagnosis even in cases of suprasellar mass lesions.

Kalman Kovacs - One of the best experts on this subject based on the ideXlab platform.

  • Sellar Neuroblastoma Mimicking Pituitary Adenoma
    Pituitary, 2005
    Co-Authors: Ken-ichi Oyama, Shozo Yamada, Masaaki Usui, Kalman Kovacs
    Abstract:

    Objective and importance: Primary intracranial neuroblastomas are rare. They generally arise in the supratentorial parenchyma or paraventricular region. Even more rare are primary sellar neuroblastomas. We present a neuroblastoma that arose in the sellar region and mimicked a non-functioning pituitary adenoma. Clinical presentation: This 33-year-old man presented with Bitemporal Hemianopsia. MRI showed a sellar mass with suprasellar extension mimicking a pituitary adenoma. Intervention: Because of tumor recurrence and dissemination to the cervical region, he underwent 6 operations and radiosurgery. Detailed histologic examination confirmed the diagnosis of neuroblastoma. Postoperative conventional radiotherapy was effective in reducing the size of the tumor. Conclusion: Neuroblastoma should be considered in the differential diagnosis of patients with sellar lesions.