Endocrine Abstracts

Introduction: Autoimmune disease is a rare event occurring after remission of Cushing’s syndrome. We report on the appearance of new onset vitiligo in a patient treated for Cushing disease due to a an invasive pituitary adenoma, after bilateral adrenalectomy.Case report: A 64-year-old man presented to our endocrinology clinic with progressive lumbar pain that had developed two months earlier. He had undergone bilateral adrenalectomy for Cushing&#146...

Nelson’s syndrome is a recognised complication of bilateral adrenalectomy for Cushing’s disease. The treatment of this condition can be extremely difficult. We report a case who failed to respond to traditional treatments, was given a novel chemotherapeutic agent temozolomide.A 50 years old lady was diagnosed with pituitary dependent Cushing’s disease in 1998. She underwent transphenoidal hypophysectomy (TSS) twice, followed by conventiona...

A 64-year old man presented to our endocrinology clinic with progressive lumbar pain that had developed two months earlier. He had undergone bilateral adrenalectomy for Cushing disease and two years later transsphenoidal resection for Nelson tumor. On physical examination, the patient had remarkable hyperpigmentation due to ACTH hypersecretion periorbital, peri-auricular and in the lower-neck region. These findings were clearly evident in his case due to the extensive facial v...

Temozolomide, an alkylating agent used in malignant gliomas, has been recently used too in the treatment of aggressive pituitary tumors. To date, two cases of Nelson’s syndrome has successfully treated with 5 days of 28-day cycle, but the follow-up has been shorter than 12 months. We reported the third patient with Nelson’s syndrome treated with temozolomide, who after an initial goal response to three 300 mg 5 days of 28-day cycles shown a clinical and biochemical (...

Introduction: The Nelson’s syndrom (NS) is defined by the development of an ACTH pituitary adenoma. Complication of bilateral adrenalectomy performed in some cases of Cushing’s disease.We report the observation of three patients.Case1: 34-year-old patient, followed for Cushing’s disease with pituitary microadenoma, having undergone pituitary surgery, then bilateral adrenalectomy due to surgical failure. Presented two...

ApoB isoforms are components of the chylomicron, and of the atherogenic LDL and Lp(a) particles. Ex26 is exceptionally long at 7.57kb as most exons are <500bp. Ex26 is also the site of RNA editing, which generates the ApoB48 isoform instead of ApoB100. The first 3kb of ex26 contains 15 sequences matching the splice site consensus, which could be used in splicing, but are not. Splice sites matching the consensus but which are not used are called pseudosites. How the spliceos...

Case history: Our patient is a 64 year old lady who had bilateral adrenalectomy in 1978 for Cushing”s disease. This was followed by radiotherapy in late 1978. To get further reduction of the ACTH producing pituitary adenoma she had transsphenoidal surgery in 1979 and then transfrontal craniotomy in 1982. This was followed by further radiotherapy in 1985. It left her with panhypopituitarism and she was on full hormone replacement. She presented to our hospital in late 2008...

Introduction: Nelson’s syndrome is a significant long-term complication of bilateral adrenalectomy for Cushing’s disease. However, evidence about possible factors that can predict its occurrence, is controversial and limited.Objective: The objective of this analysis was to elucidate the role of various factors in prediction of Nelson’s syndrome and the extent of their modifying effect.Methods: All patients with Cushi...

Recent studies have reported a high prevalence of USP8 mutations in corticotroph adenomas causing Cushing’s disease. Nelson’s syndrome is a potentially life-threatening complication of bilateral adrenalectomy in patients with refractory Cushing’s disease that is caused by the development of an ACTH-secreting tumor in the pituitary gland. Whether USP8 alterations are also present in Nelson’s tumors has not been studied in detail so far....

Introduction: Nelson´s Syndrome is defined as the presence of an enlarging pituitary tumor associated with elevated fasting plasma ACTH levels and hyperpigmentation in patients submitted to bilateral adrenalectomy for the treatment of Cushing´s disease. Case Report: We present a case of a 48 y/o woman who in 2015, was diagnosed of Cushing’s disease and underwent transsphenoidal adenomectomy but remission was not achieved, so the patient wa...