Publications by authors named "Rika Miyabe"

Background: Letrozole, an aromatase inhibitor, is used to treat breast cancer in postmenopausal women. Tumor lysis syndrome (TLS) is a complication that can trigger multiple organ failure caused by the release of intracellular nucleic acids, phosphate, and potassium into the blood due to rapid tumor cell disintegration induced by drug therapy. TLS is uncommon in solid tumors and occurs primarily in patients receiving chemotherapy.

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Ruptured phyllodes tumors, though extremely rare, can necessitate emergency surgery in certain cases, particularly those with active bleeding. A 51-year-old woman presented to our hospital with a newly identified mass in her right breast that developed over the past two months. The tumor had ruptured through the paramammary nipple.

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Article Synopsis
  • IgG4-related mastitis is a rare breast disease that can be mistaken for breast cancer, requiring careful differentiation.
  • There is no established best treatment approach for this condition, leading to varied management strategies.
  • A reported case suggests that regular monitoring through imaging and serum marker measurements can be sufficient, potentially avoiding the need for surgery or steroids.
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An 76-year-old man was referred to our hospital due to right hydrothorax. The diffuse thickening of parietal pleura with increased fluoro-2-deoxy-D-glucose (FDG) uptake was noted by computed tomography (CT) and positron emission tomography (PET). Surgical biopsy was performed and the tumor was diagnosed as mucosal associated lymphoid tissue (MALT) lymphomas of parietal pleura origin by pathology.

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A 77-year-old woman was admitted to our hospital with abnormal chest shadow detected on a medical checkup. Chest computed tomography(CT)showed a well-defined tumor in the upper lobe of the right lung. On positron emission tomography by fluorodeoxyglucose(FDG),the tumor revealed to be positive.

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60-year-old woman was admitted with an abnormal shadow on the chest roentgenogram. Computed tomography showed atelectasis of the right middle lobe and hilar and mediastinal lymphadenopathy. Bronchoscopic examination revealed an obstruction at the orifice of the right middle lobe bronchus and biopsy was performed.

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The patient was a 60's-year-old man, who was incidentally pointed out a coin lesion in the right lung by chest radiogram. Chest computed tomography showed a round-shaped, well defined nodule of 2.5 cm in size in the right S1.

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Objective: Multiple endocrine neoplasia type 1 (MEN1) is less well recognized in Asian countries, including Japan, than in the West. The clinical features and optimal management of MEN1 have yet to be clarified in Japan. The aim of this study was to clarify the clinical features of Japanese patients with MEN1.

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A 71-year-old man, who had been given a diagnosis of Bochdalek hernia in infancy, was referred to our hospital for dyspnea The chest X-ray and computed tomography (CT) showed left pneumothorax with bullas and intestines in his left thoracic cavity. He was admitted to our hospital and a chest tube was inserted into the left pleural cavity. The left lung expanded immediately and air leakage was stopped.

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We report our experience with sternum lifting method in 5 patients with a retrosternal large parathyroid gland around an innominate vein. There were 2 men and 3 women aged 35 to 81 years. All patients showed a retrosternal large parathyroid gland around an innominate vein.

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Purpose: To evaluate the usefulness of three-dimensional (3D) ultrasonography (US) as a noninvasive preoperative localization procedure before performing minimally invasive focused parathyroidectomy in patients with primary hyperparathyroidism (pHPT).

Methods: Seventy-six patients with a solitary adenoma detected by US underwent minimally invasive focused parathyroidectomy. The value of 3D US was assessed by dividing patients into a 2D group and a 3D group.

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Goiters were often associated with iodine deficiency in European mountain areas, with some goiters being quite disfiguring. However, some goiters seem not to be related to iodine deficiency. One of the types of goiter that are unrelated to iodine deficiency is the disease described by Hakaru Hashimoto in 1912.

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Objective: The role of the quick PTH assay in surgery for secondary HPT is unclear because of overestimation of intact PTH(1-84) values due to the cross-reactivity of currently available first-generation PTH assays with non-PTH(1-84) fragments that accumulate in renal failure. In this study, we used a second-generation quick PTH immunometric assay that are claimed to detect the biologically active PTH(1-84) molecule with no cross-reactivity with PTH fragments to investigate the potential utility of the assay during parathyroidectomy for secondary HPT.

Material And Methods: The study was performed on 18 patients (12 women, 6 men) between October 2004 and March 2005.

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Background: The Bio-Intact PTH (1-84) assay has recently been developed to specifically measure the intact PTH (1-84) molecule, and in this study we used it to investigate sequential changes in serum Bio-Intact PTH (1-84) levels during parathyroidectomy for secondary HPT.

Material And Methods: The subjects of this study were 70 patients (41 women, 29 men) who underwent parathyroidectomy between April 2002 and March 2005. Ethylene diamine tetraacetic acid serum samples were drawn via a peripheral venous catheter after induction of anesthesia (basal), and at 5, 10, and 30 min after diseased glands excision.

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