Pituitary sarcoma arising in association with pituitary adenoma is an uncommon finding. Most cases of secondary sarcoma have been noted to arise with a median interval of 10.5 years post radiation. In this case report, we describe a 77-year-old man with an incidental discovery of a pituitary macroadenoma on magnetic resonance imaging (MRI) and underwent radiotherapy. Three years after radiation treatment, there was an acute change in clinical symptoms and increase in tumor size and mass effect on the optic chiasm which prompted surgical resection. A pituitary adenoma along with a separate spindle-cell sarcomatous component was identified in histology. Immunohistochemical stain for muscle markers confirmed a development of pituitary rhabdomyosarcoma (RMS). Molecular profiling of the tumor identified mutations in TP53, ATRX, LZTR1, and NF1. Despite its rarity, characterization of pituitary RMS with immunohistochemistry and molecular studies may provide an insight to its pathophysiological relationship with pituitary adenoma.
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http://dx.doi.org/10.3389/fendo.2021.752361 | DOI Listing |
Front Surg
December 2024
Department of Neurosurgery, Binzhou Medical University Hospital, Binzhou, Shandong, China.
Background: The surgical treatment of pituitary adenomas (PAs) is aimed at achieving maximal tumor resection, relieving the compression, and correcting the disorders of pituitary hormones. Parasellar dural invasion is a primary factor in the failure of the surgery. By comparing the two operations of tumor excision combined with resection of the medial wall of the cavernous sinus (MW) and simple tumor excision, we further confirmed the clinical effectiveness and safety of the resection technique of the MW.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
December 2024
Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, China.
Background: Pituitary adenomas (PAs) present with clinical features such as neuroendocrine abnormalities and mass effects, common in the general morbidity population. However, in elderly patients, the disease progression renders some clinical features difficult to detect and identify in time. Consequently, elderly patients with PAs are often not identified and receive sufficient intervention on time to achieve a satisfactory outcome.
View Article and Find Full Text PDFJ Med Case Rep
December 2024
Department of Neurosurgery, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Background: Giant prolactinoma (size > 4 cm) is a rare condition and accounts for less than 1% of pituitary adenomas. In even rarer cases, these lesions may involve craniocervical structures requiring surgical intervention. The present case is the largest reported giant prolactinoma (99 × 72 × 57 mm).
View Article and Find Full Text PDFBMC Womens Health
December 2024
Department of Diagnostic Radiology, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan.
Background: Most cases of ovarian hyperstimulation syndrome (OHSS) are caused by infertility treatment using human menopausal gonadotropin (HMG) and human chorionic gonadotropin (hCG). OHSS is widely known to have a "spoke-wheel" appearance on imaging, presenting as bilateral symmetric enlargement of ovaries with multiple cysts of varying sizes. When this spoke-wheel appearance is observed in patients not undergoing infertility treatment, tumor-derived hormones such as follicle-stimulating hormone (FSH) and hCG should be measured.
View Article and Find Full Text PDFNeurochirurgie
December 2024
Lille University Hospital, Neurosurgery Department, PRISM Lab Inserm U1192, CHU LilleF-59000, Lille France.
Context: Pituitary Neuroendocrine Tumors are rare in children, but challenging, implying the two purposes to cure the child, and preserve pituitary function. In this paper, we describe our population of children who underwent endoscopic endonasal resection of a pituitary adenoma, in Lille University Hospital.
Patients And Methods: Between 2007 and 2021, all children undergoing EEN surgery for pituitary adenoma were included.
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