Endocrine Abstracts

Thyroid hormone resistance syndrome(THRS) occurs in 1:40000 live births and can be diagnosed after a period of enigmatic changes in thyroid hormones(TH). Patients may be clinically euthyroid, have clinical hypo or hyperthyroidism. Mostly, it is an autosomal dominant disease due to germline mutations in THRβ-gene(exons 7-10). Resistance to peripheral action of TH leads to absence of TSH suppression (which can be normal/elevated) despite elevated fT4 and fT3.<p class="a...

Introduction: The clinical and biochemical spectrum of pituitary acromegaly is wide and variable. There are pure somatotroph tumors(ST), immunohistochemically positive only for GH, and pluri-hormonal(PL), also positive for other hormones, and they appear to have different presentations and responses to treatment.Aims: To compare the clinical presentation, imaging characteristics and response to treatment of acromegalic patients according to the pituitary...

Introduction: Evidence has suggested a relationship between female obesity and the outcomes of medically assisted reproduction techniques (MRT); however, the evidence regarding male obesity is still scarce and discordant. Aim: Evaluate the influence of female and male obesity on the results of MRT.Materials and methods: Retrospective analysis of 2159 couples, with and without obesity, submitted to the first treatment of medically a...

Introduction: Oestrogens and androgens modulate the effects of growth hormone (GH). Sex differences have been described in acromegaly, with conflicting results in different populations. Additionally, data on sex differences in tumour histopathology are scarce.Aims: To analyse the influence of sex and menopause status in tumour characteristics and surgical outcomes in patients with acromegaly.Materials and methods: Retrospective coh...

Introduction: The simultaneous occurrence of two drug-induced thyroid dysfunctions is rare. We present a case of central hypothyroidism due to bexarotene (BXC), followed by Interferon-α (IFNα)-induced Graves’ disease (GD) thyrotoxicosis after 2 years.Case Report: A 56-year-old man with no prior thyroid disease was diagnosed with cutaneous T-cell lymphoma and commenced treatment with BXC 600 mg/day and IFNα 90 mg/week concurrently. Aft...

Introduction: Inferior petrosal sinus sampling (IPSS) has been considered to be the gold standard for differential diagnosis of Cushing’s Disease (CD) and ectopic ACTH secretion (EAS).Aim: To describe the experience of our centre in performing IPSS, its safety and efficacy; assess remission rates from transphenoidal surgery and clinical course; approach to the difficulty in the etiological diagnosis of ACTH-dependent Cushing’s Syndrome.<p c...

Introduction: Thyrotoxic crisis is a rare endocrinological emergency with high mortality and it is more frequent in Graves’ disease.Clinical case: A 66-year-old women with schizophrenia was admitted to the Emergency Department due to altered state of consciousness, fatigue, constant moaning interspersed with unusual psychomotor agitation, heteroaggressiveness, diarrhea and anorexia. Lack of compliance with her psychiatric medication, new delusional ...

Introduction: Medullary thyroid cancer (MTC) is a rare tumour. Mostly sporadic, 25% are associated with multiple endocrine neoplasia (MEN2A/B) or isolated familial MTC. Surgery is the only curative option: its response is defined as complete (no evidence of biochemical or structural disease), incomplete (only structural response) and persistence of structural disease. We aimed to analyse the clinical and pathological factors associated with the prognosis of MTC.<p class="a...

Introduction: The interaction between obesity and bone metabolism is complex and not fully understood. Historically, higher body weight was considered to be protective against osteoporosis. This association has affected clinical practice: body mass index (BMI) is one of the variables included in Fracture Risk Assessment Tool (FRAX), where a higher BMI leads to a lower fracture risk. Despite this association between bone mineral density (BMD) and body weight, it is not clear wh...

Introduction: Medullary thyroid carcinoma (MTC) arises from thyroid parafollicular C cells and accounts for <5% of thyroid cancers. Nearly 25% occur in the context of multiple endocrine neoplasia type 2 syndrome (MEN2) or familial isolated MTC.Objectives: Evaluation of clinical characteristics and evolution of patients with MTC.Methods: Retrospective analysis of clinical records of patients with MTC diagnosed from 2001 to 2023....