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1.
Endocr Oncol ; 4(1): e230047, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38770191

RESUMO

Background: Mönckeberg sclerosis is a form of calcification of the tunica media of small and medium size arteries. It occurs more often in the peripheral arteries of the lower limbs and it has been associated with diabetes and renal disease. Although there are a few reports of Mönckeberg sclerosis in thyroid vessels, there are no data regarding its significance in thyroid disease. Objective: The aim was to investigate the possible prognostic value of Mönckeberg sclerosis in thyroid vessels of patients with diagnosed thyroid cancer. Methods: We retrospectively studied patients with papillary thyroid cancer treated at the Theagenio Hospital of Thessaloniki from 2005 to 2021. The patients were divided into two groups based on the presence, or absence, of histopathological findings of Mönckeberg sclerosis in the thyroid vessels along with papillary thyroid cancer. Patient characteristics, histopathological details, personal history of thyroid disease, and metabolic parameters were compared between the two groups. Results: Thirty-three patients with papillary thyroid carcinoma and Mönckeberg sclerosis were identified and matched to 33 controls with papillary thyroid cancer, without evidence of Mönckeberg sclerosis. The metabolic profile of patients with Mönckeberg sclerosis was not significantly different from those who did not have Mönckeberg sclerosis. Moreover, the comparison between the two groups did not reveal any remarkable differences in terms of the aggressiveness of the disease. Conclusion: The presence of Mönckeberg sclerosis does not seem to impact on histological characteristics of patients with papillary thyroid cancer.

2.
Int Med Case Rep J ; 17: 143-147, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38435418

RESUMO

Purpose: Brown tumors, also known as cystic fibrosa, are rare, benign, osteolytic, fibrotic lesions of the bones that occur secondary to hyperparathyroidism. They are caused by increased osteoclastic activity leading to an abnormal bone metabolism. Case Description: Here, we present the case of a 58-year-old male, who presented with painful bony lesions, initially attributed to metastatic disease. After biochemical workout, imaging and biopsy, the nature of the lesions was revealed. We discuss the differential diagnosis and clinical management of the disease. Conclusion: Patients with brown tumors should be assessed in the differential diagnosis of bony lesions and should always be tested for hyperparathyroidism. An early diagnosis is crucial for the successful treatment of such patients.

3.
J Med Cases ; 14(9-10): 307-316, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37868325

RESUMO

Pancreatic vasoactive intestinal peptide-producing tumor (VIPoma) is a rare functional neuroendocrine tumor most commonly presenting with watery diarrhea and electrolyte abnormalities that include hypokalemia, hypercalcemia and metabolic acidosis. This type of tumor has usually insidious clinical behavior that is characterized by chronic secretory diarrhea, lasting usually from months to years before diagnosis, not responsive to usual medical or dietary treatment approaches. Given the resemblance of VIPoma with other more common causes of chronic watery diarrhea, the final diagnosis is often delayed and the tumors are usually large and metastatic at the time of detection. Our case of pancreatic VIPoma demonstrates an unusual clinical course for this type of tumor with acute refractory diarrhea and rapid deterioration of patient's clinical and biochemical status that required emergent in-hospital diagnosis and treatment. Our patient is a 45-year-old woman who presented with abrupt, watery diarrhea during the past 24 h before admission accompanied with severe hypokalemia as well as hyponatremia, hyperglycemia and hypercalcemia. Despite aggressive management with fluid administration and electrolyte replenishment, no significant improvement in patient's symptoms and electrolyte imbalance was observed. After exclusion of other causes of acute diarrhea from the medical history and the laboratory tests, the clinical suspicion of a functional neuroendocrine tumor was raised. After the establishment of final diagnosis of pancreatic VIPoma with biochemical tests and magnetic resonance imaging (MRI), somatostatin analogues were prescribed and the patient underwent distal pancreatectomy and splenectomy with no signs of lymph node and splenic metastases. Few days after the surgical resection of the tumor, the patient readmitted to our hospital with tarry stools and severe anemia. The abdominal computed tomography (CT) revealed a retroperitoneal cystic lesion. The gastrointestinal bleeding gradually recessed after endoscopic hemostasis of duodenal ulcer lesions whereas the cystic lesion (postoperative lymphocele) was successfully drained under CT-guidance before discharge. After almost 10 years postoperatively, the patient is still asymptomatic with no signs of relapse or metastasis of the disease in the periodic laboratory and imaging follow-up. In conclusion, pancreatic VIPoma can sometimes manifest symptoms of abrupt onset and rapid progression that require high clinical suspicion, appropriate diagnostic workup and aggressive management.

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