RESUMO
An adrenal oncocytic neoplasm is an extremely rare tumour arising from the adrenal gland and it should be considered in the differential diagnosis of an adrenal incidentaloma, since it is frequently non-functioning. The suspicion for malignancy is high when an adrenal incidentaloma is >4 cm in size; however, adrenal oncocytomas are large, measuring an average of 8 cm, are round and encapsulated, and normally have a benign behaviour. We present a case of a 55-year-old male patient with dyslipidaemia, medicated with simvastatin. Upon complaints of abdominal pain, the general physician asked for an abdominal ultrasound that revealed an adrenal lesion, further characterized with a computed tomography scan, which showed an adrenal lesion measuring 49 × 64 × 56 mm and a calcification focus. The patient was referred to the general surgery and endocrinology department. The analytical study was negative for pheochromocytoma or Cushing's syndrome, which allowed surgery to be conducted, as is recommended. The aim of this case report is to contribute to the knowledge on adrenal oncocytomas, since there is scarce information based on singular experiences.
RESUMO
Pheochromocytoma (PHEO) is a rare tumour that arises from adreno-medullary chromaffin cells and secretes catecholamines. These hormones are also secreted by paragangliomas, which derive from extra-adrenal cells of the sympathetic paravertebral ganglia. At least one-third of PHEOs are familial. Neurofibromatosis type 1 (NF1), or von Recklinghausen's disease, is diagnosed upon clinical criteria, and the study of PHEO is advised if hypertension is present. The incidence of PHEO in NF1 is 0.1-5.7% and explains hypertension in 20-50% of these patients. Recent advances in the treatment of this condition and preoperative preparation allow us to reduce its high cardiovascular morbimortality. Here we present the case of a 31-year-old female with known NF1 who presented with 5 months' history of non-specific symptoms and an episode of intraoperative hypertensive crisis. The workup detected a left sided PHEO, which was treated surgically. Our case illustrates the high prevalence of hereditary PHEO and how its presentation can go unnoticed. It reinforces the significance of screening for PHEO in patients with NF1.
RESUMO
BACKGROUND: A paucity of information is available on the comparative nutritional deficiencies considering the presence of metabolic syndrome (MetS) and nutritional changes after vertical sleeve gastrectomy (SG). OBJECTIVES: To compare the nutritional status in patients with and without MetS before and 1 year after SG and to investigate its association with metabolic status. SETTING: A tertiary referral center. METHODS: Retrospective study, including all patients submitted to SG between January 2011 and July 2015. Patients were evaluated before and 12 months after surgery. MetS presence was classified using the International Diabetes Federation/American Heart Association/National Heart, Lung, and Blood Institute 2009 definition. Univariate and multivariate analyses were applied to find associations between MetS, nutritional, anthropometric, and metabolic parameters. RESULTS: A total of 330 patients were included and MetS was present in 47%. Preoperatively, patients without MetS presented a higher percentage of folate deficiency (12% versus 2%, P < .001). Follow-up data were available for 202 patients. In the 1-year evaluation, MetS patients presented significantly lower body mass index and percent excess weight loss (70.96 ± 20.4 versus 79.55 ± 23.0, P < .001). These patients also presented lower homocysteine (11.76 ± 4.3 versus 13.66 ± 7.6, P = .027) and magnesium (19.41 ± 2.1 versus 20.22 ± 1.9, P = .004) levels but higher calcium (9.27 ± .3 versus 9.16 ± .4, P = .031) and vitamin B12 (396, P 312-504.5 versus 329, P 255-433, P = .002) levels comparing with those without MetS. Multiple linear regression evidenced that higher preoperative albumin and postoperative ferritin and homocysteine were predictors of a lower body mass index after surgery, and higher postoperative folate levels were associated with lower insulin-resistance. CONCLUSIONS: The impact of SG on nutritional parameters is affected by MetS. If not treated, preoperative deficiencies can impair postoperative metabolic status and weight loss. MetS should be considered when evaluating bariatric surgery candidates, and preoperative supplementation and long-term nutritional follow-up are required to prevent further nutritional deficiencies.
