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Last update 08 May 2025

Acidophil Adenoma

Last update 08 May 2025

Basic Info

Synonyms

Acidophil Adenoma, Acidophil Adenomas, Acidophil adenoma

+ [35]

Introduction

A benign tumor, usually found in the anterior lobe of the pituitary gland, whose cells stain with acid dyes. Such pituitary tumors may give rise to excessive secretion of growth hormone, resulting in gigantism or acromegaly. A specific type of acidophil adenoma may give rise to nonpuerperal galactorrhea. (Dorland, 27th ed)

Drugs associated with Acidophil Adenoma

R-4733

Target

γ-secretase

Mechanism

γ-secretase inhibitors

Active Org.-

Originator Org.

National Cancer Institute

Active Indication-

Inactive Indication

Acidophil Adenoma [+143]

Drug Highest PhaseDiscontinued

First Approval Ctry. / Loc.-

First Approval Date20 Jan 1800

Clinical Trials associated with Acidophil Adenoma

NCT01088763

/ TerminatedPhase 1IIT

A PHASE 1/2 STUDY OF RO4929097, AN ORAL SMALL MOLECULE INHIBITOR OF GAMMA-SECRETASE, IN CHILDREN WITH RELAPSED/REFRACTORY SOLID OR CNS TUMORS, LYMPHOMA, OR T-CELL LEUKEMIA

This phase I/II clinical trial is studying the side effects and best dose of gamma-secretase inhibitor RO4929097 and to see how well it works in treating young patients with relapsed or refractory solid tumors, CNS tumors, lymphoma, or T-cell leukemia. Gamma-secretase inhibitor RO4929097 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

Start Date01 Mar 2010

Sponsor / Collaborator

National Cancer Institute

100 Clinical Results associated with Acidophil Adenoma

100 Translational Medicine associated with Acidophil Adenoma

0 Patents (Medical) associated with Acidophil Adenoma

571

Literatures (Medical) associated with Acidophil Adenoma

01 Apr 2025·Clinical Endocrinology

Polycystic Ovary Syndrome in the Context of Pituitary Adenomas: Prevalence, Pathophysiology and Clinical Management

Review

Author: De Alcubierre, Dario ; Sbardella, Emilia ; Cela, Esmeralda

ABSTRACTObjectiveMany review articles have explored data regarding the coexistence of specific types of pituitary adenomas (PAs) and polycystic ovary syndrome (PCOS), particularly focusing on the potential pathogenesis of this intersection and overlapping features. However, a comprehensive evaluation encompassing the full spectrum of PAs and their association with PCOS remains lacking. This review aims to provide a broad assessment of the interactions between these entities, emphasizing pathophysiological mechanisms, clinical presentations, diagnostic challenges and therapeutic implications.MethodsA comprehensive literature search was conducted in the PubMed/MEDLINE database, focusing primarily on publications from the years 2000 to 2024, while also including seminal papers from the 1950s. The reference lists of selected articles were also manually searched. Inclusion criteria encompassed review articles, retrospective studies, clinical trials, case reports and meta‐analyses providing data on the pathogenesis, clinical features, diagnostic challenges and therapeutic approaches related to PCOS and different PAs.ResultsPCOS and functioning PAs often exhibit overlapping clinical features, complicating diagnosis and management. PCOS may precede and delay the diagnosis of growth hormone (GH)‐secreting adenomas. The prevalence of PCOS or its features in acromegaly is influenced by disease activity, while approximating 13% in cases with controlled disease. Excess GH and insulin‐like growth factor 1 (IGF‐1) adversely affect ovarian function through direct pathways and by inducing insulin resistance, contributing to acromegaly‐associated PCOS. In Cushing's syndrome (CS), findings consistent with PCOS may be present in 46% of patients, with cortisol excess contributing to menstrual dysfunction, hyperandrogenism and insulin resistance. While the prevalence of PCOS in patients with prolactinomas remains under‐researched, recent studies indicate a 2.8%–10% prevalence of prolactinomas in PCOS. Elevated prolactin (PRL) levels in these patients may promote insulin resistance, further contributing to PCOS pathogenesis. Moreover, increased androgen bioavailability may be observed in all three aforementioned adenomas. To date, no studies have provided prevalence data for PCOS in other types of PAs.ConclusionsDistinct clinical features, along with biochemical evaluations and imaging, can help differentiate the presence of both PAs and PCOS. Moreover, excluding other mimicking disorders is essential for an accurate diagnosis of PCOS. The persistence or recurrence of menstrual dysfunction, hyperandrogenism and metabolic disturbances in patients with controlled functioning adenomas may indicate a coexisting PCOS diagnosis. Timely diagnosis may optimize management and improve long‐term outcomes for both conditions. Future studies should focus on investigating the clinical differences between patients with co‐occurring PCOS and PAs compared to those with PCOS alone, ideally in larger cohorts, to better understand unique diagnostic and therapeutic considerations.

01 Nov 2024·Journal of Craniofacial Surgery

The Application of Pneumatic Arm in Neuroendoscopic Transsphenoidal Pituitary Adenoma Resection

Article

Author: Hong, Wen-Ming ; Wang, Bin ; Wang, Jing-Tao ; Zhang, Fang ; Chen, Dong-Hui ; Cheng, Hong-Wei

Objective:To summarize the application experience of the pneumatic arm in transnasal sphenoidal pituitary adenoma resection under neuroendoscope.Methods:A retrospective analysis was conducted on the clinical data of 52 patients with pituitary adenoma who underwent endoscopic transsphenoidal surgery with pneumatic arm fixation in the Neurosurgery Department of the First Affiliated Hospital of Anhui Medical University from July 2021 to March 2024. Among them, there were 5 cases of pituitary microadenoma, 35 cases of macroadenoma, and 12 cases of giant adenoma. Head CT and a full set of hormones were re-examined within 24 hours after surgery to evaluate the surgical effect. Follow-up was conducted by the outpatient department after surgery to assess the clinical symptoms, hormone level, and imaging of all patients.Results:Among 52 patients, gross total resection was achieved in 48 cases (92.3%), subtotal resection in 3 cases (5.8%), and partial resection in 1 case (1.9%). Preoperatively, 43 patients had diminished vision, with 40 showing improvement postoperatively, 1 worsening, and 2 having no significant improvement. Thirty-eight patients had headaches preoperatively, and all showed varying degrees of improvement postoperatively. Routine hormone examination within 24 hours after surgery showed that all 20 prolactinoma patients had restored normal hormone levels, 10 of 12 growth hormone-secreting adenoma patients normalized, and 4 of 6 cases of adrenocorticotropic hormone-secreting adenoma immediately relieved after surgery. Postoperative complications included intracranial hematoma in 1 case, cerebrospinal fluid leakage in 2 cases, transient diabetes insipidus in 6 cases, intracranial infection in 1 case, and no death cases. The median follow-up time of 52 patients was 18.6 months (range: 1–32 mo). During the follow-up period, the initial clinical symptoms of all patients improved to varying degrees, and they were able to work and live normally. At the last follow-up, 1 patient had recurrent tumor and 1 patient had progression.Conclusion:Transnasal sphenoidal resection of pituitary adenoma using a pneumatic arm-fixed neuroendoscope allows the operator to perform the surgery with both hands, resulting in satisfactory overall tumor resection and fewer surgical complications. This technique has good clinical value for promotion.

01 Nov 2024·Journal of Clinical Neuroscience

Endoscopic endonasal transpterygoid trans lacero-cavernous resection of Knosp 4 functioning pituitary macroadenoma

Article

Author: Gabra, Pavan ; Agrawal, Nikhil ; Gadhvi, Mahesh ; Bhalla, Simran ; Kumar Sharma, Raghavendra ; Tiwari, Sarbesh ; Prevedello, Daniel ; Gosal, Jaskaran Singh ; Janu, Vikas ; Jha, Deepak Kumar ; Kumar Shukla, Ravindra

In this video, we demonstrate the technique of endoscopic transpterygoid trans lacerum trans cavernous approach for the excision of Knosp 4 functioning pituitary macroadenomas. We highlight the anatomy and key steps of the approach using cadaveric dissection and present two clinical cases. A 42-year-old female with a growth hormone-secreting tumor and Knosp 4 macroadenoma underwent an extended endoscopic endonasal approach and near-total excision of the tumor. Postoperatively she was neurologically intact. Postoperative MR showed a small residue in the lateral compartment of the cavernous sinus and along the right optic tract superiorly. Due to the proximity of the residual tumor near the optic apparatus, she was offered a pterional approach, and the tumor around the optic apparatus was excised. She was given stereotactic radiosurgery for the small residual tumor in the cavernous sinus and is currently doing well, under remission. The second case was a 23-year young male with acromegaly and bilateral Knosp 4 macroadenoma. He underwent endoscopic transpterygoid trans lacerum trans cavernous approach and gross total excision of the tumor was done. He had transient bilateral ophthalmoplegia in the immediate postoperative period which recovered fully within 6 weeks. He is currently in remission without any need for radiotherapy. To conclude, an in-depth knowledge of the anatomy helps in improving surgical outcomes in extended endoscopic endonasal surgeries.

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