Publications by authors named "Sakuda T"

Introduction: Ependymomas are neuroepithelial neoplasms of the central nervous system that arise from the precursor cells lining the ventricular system and the central canal of the spinal cord. Herein, we report a case of an extremely rare type of ependymoma arising from the thigh. Then, a literature review was performed.

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Aim: This study examined the oral status and the presence of teeth requiring treatment among older adults receiving home medical care.

Methods: This cross-sectional study was conducted at a Japanese dental clinic specializing in geriatric treatment. We recruited older adults receiving home medical care in the community who had begun to receive domiciliary dental care.

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Introduction And Importance: Myopericytomas are tumors originating from perivascular myoid cells and exhibiting a wide range of histologic growth patterns. They rarely occur in bones, and no case of myopericytoma in the patella has been reported so far.

Case Presentation: A 74-year-old male presented with a chief complaint of pain in the left knee.

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Background/aim: Wide resection is usually performed for malignant bone and soft tissue tumors, but there is often functional impairment of the affected limb. In this study, we performed virotherapy with the vesicular stomatitis virus (VSV) and photothermal therapy using carbon nanotubes (CNTs) in combination for osteosarcoma, followed by marginal excision. The possibility of local treatment of the primary tumor was then assessed.

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Unlabelled: Reconstruction after en-bloc resection can be challenging in cases of Campanacci grade 3 giant cell tumour of the bone (GCTB) of the distal radius. Here, the authors examined the outcomes of patients with Campanacci grade 3 GCTBs of the distal radius who underwent wrist arthrodesis and reconstruction with ulnar translocation.

Material And Methods: This case series was a retrospective single-centre study.

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Introduction And Importance: Patellar bone tumors are very rare, and most are benign or of intermediate type. In this report, we describe our experience of a metastatic patellar bone tumor caused by gastric cancer, which resembled a very rare primary or secondary aneurysmal bone cyst and review the literature.

Case Presentation: A 65-year-old man presented with severe pain in the patellar region and marked limitation of the knee joint range of motion.

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Background/aim: Attempts have been made to enhance treatment with vesicular stomatitis virus (VSV) for osteosarcoma. We have previously shown that VSV incorporated with miRNA143 enhanced the antitumor effect at some doses; however, the range of the doses was narrow. This has not been evaluated in vivo, and the synergistic effect of this antitumor effect in animals is unknown.

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We performed a retrospective cohort study using medical records of 374 pediatric patients who visited a university dental clinic specializing in dysphagia rehabilitation in Japan between 2019 and 2020 to clarify the usefulness of telemedicine among disabled children receiving feeding therapy. The primary outcome was the feeding developmental stage confirmed at the final evaluation. Propensity score matching was performed between individuals in two treatment groups (in-person and telemedicine) before the final analysis using patients' age, sex, primary disease, gross motor function, and feeding developmental stage as covariates.

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Introduction And Importance: Scapular prostheses are useful in shoulder stability after shoulder girdle resection for malignant bone tumors; however, they are difficult to obtain in Japan. Therefore, other methods must be considered, depending on the extent of resection. We report a case in which a clavicle-locking plate, Nesplon tape, and a proximal humeral prosthesis were used to ensure shoulder stability and preserve stable upper limb function.

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Long-term bisphosphonate use may be associated with atypical femoral fractures. In this report, we describe three cases of bisphosphonate-associated incomplete atypical femoral fracture, treated by prophylactic intramedullary nail fixation. Patients with long-term intake of bisphosphonates must be carefully monitored; atypical femoral fracture should be suspected in the presence of symptoms such as thigh pain.

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Introduction: Giant cell tumor (GCT) of the bone is a benign-malignant intermediate tumor with locally destructive growth and a relatively high local recurrence rate. Neurological symptoms may develop in patients with GCT of the spine, and surgical treatment is prioritized in cases where resection is possible. However, the local recurrence rate of GCT of the bone is higher than that of GCT at other sites owing to the associated surgical challenges, and treatment is often difficult.

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Introduction And Importance: The manifestation of tuberculous mimicry is challenging to diagnose, especially in extrapulmonary Tuberculosis (TB). Pigmented villonodular synovitis (PVNS) may mimic tuberculous arthritis of the knee joint. In young, otherwise healthy-appearing individuals, tuberculous arthritis and PVNS in the knee joint could present as monoarticular involvement, with painful swelling of extended duration and limited movement.

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Introduction: Extraskeletal Ewing sarcoma (EES) of the extremity is uncommon, and only a small number of reported cases have been devoted to the upper-extremity.

Presentation Of Case: A 65-year-old woman presented with a recurrent EES, a highly malignant tumor, involving the ulnar nerve at the right elbow region which was initially suspected as a benign soft tissue tumor, schwannoma, thus marginal excision had been performed. Due to its malignant behaviour, we treated the recurrent lesion with wide excision and reconstruction combined with chemotherapy.

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Background: Giant cell tumor of bone (GCTB) is an intermediate but locally aggressive neoplasm. Current treatment of high-risk GCTB involves administration of denosumab, which inhibits bone destruction and promotes osteosclerosis. However, denosumab monotherapy is not a curative treatment for GCTB and surgical treatment remains required.

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Article Synopsis
  • - The case report describes aortitis (inflammation of the aorta) triggered by granulocyte colony-stimulating factor (G-CSF) during treatment for recurrent extraosseous mucinous chondrosarcoma, alongside other serious conditions like lung injury and splenomegaly.
  • - Imaging showed significant issues, including large-vessel vasculitis, an enlarged spleen, and changes in the lungs, highlighting the complexity of the patient's health status.
  • - Successful treatment with prednisolone emphasizes the potential risks of G-CSF, suggesting that doctors should be cautious as it might cause aortitis in patients, regardless of their previous health conditions.
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Background: Attempts have been made to enhance systemic therapy for osteosarcoma. In our previous study, the systemic administration of a vesicular stomatitis virus (VSV) improved the survival rates of mice with osteosarcoma but did not improve the long-term survival of the animals.

Materials And Methods: In the present study, we developed a novel oncolytic VSV by incorporating tumor-suppressor microRNA143 (rVSV-miR143) to compare the antitumor effects of various doses (10×10, 5×10, and 1×10 multiplicity of infection) of rVSV-miR143 with those of VSV in vitro.

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Introduction: Fibro-osseous pseudotumor of the digit is a rare benign lesion of subcutaneous tissue that typically arises in the parabone site of the proximal phalanx in young adult females. The lesion is histopathologically characterized by fibroblastic proliferation and osteoid formation. Good prognosis following complete surgical excision of the tumor has been reported, with a very low recurrence rate and no reports of malignant transformation.

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Article Synopsis
  • A 60-year-old man with recurring intrahepatic cholangiocarcinoma and right portal vein tumor thrombosis was treated after standard chemotherapy failed.
  • His liver biopsy revealed high microsatellite instability (MSI), leading to treatment with the immune checkpoint inhibitor pembrolizumab.
  • This treatment resulted in a partial response and resolution of the tumor thrombosis, with no significant side effects, highlighting the potential effectiveness of ICIs in rare MSI-high biliary tract cancer cases.
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Aim: This study aimed to determine the perceptions among healthcare providers of the clinical need for cosmetic therapy among older adults.

Methods: A questionnaire was distributed to 190 medical staff regarding their perceptions of cosmetic therapy for older adults. The survey included questions on occupation, sex, age, cosmetic therapy in older adults, and acceptable cosmetic treatments.

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Attempts have been made to visualize tumor cells intraoperatively with fluorescence guidance. However, the clear demarcation and complete tumor resection have always been a challenging task. To address this, we have developed a novel fluorescence bioimaging system with vesicular stomatitis virus (VSV) incorporating Katushka, near-infrared fluorescent protein.

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Giant cell tumor of the tendon sheath is a type of slow-growing benign soft tissue tumor that typically arises from the synovium of the tendon sheath. Enchondroma is a benign bone tumor comprising of mature hyaline cartilage that centrally develops within the tubular bone. While giant cell tumor of the tendon sheath or enchondroma are common benign soft tissue and bone tumors, respectively the simultaneous occurrence of these tumors in the same region of the hand is exceedingly rare, and it can mimic a malignant tumor, thereby making the diagnosis more challenging.

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Not only are energy expenditure (EE) and the respiratory quotient (RQ) parameters of the energy nutrient utilization and energy balance, they are also related to the development of obesity. In this study, post-meal night-time energy metabolism was investigated following the oral ingestion of wheat albumin (WA) with a late evening meal. A randomly assigned, double-blind, placebo-controlled crossover trial for a single oral ingestion in healthy participants was completed.

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Background: The current standard of chemotherapy response evaluation holds the most important prognostic factor to be the histological assessment of the tumor necrosis of the excised lesion, but the major challenge is to find an early prognostic factor that will allow the adjuvant treatment regimen to be adjusted. The objective of this systematic review is to provide an up-to-date and unprecedented summary of the value of Technetium-methylene diphosphate or -hydroxymethylene diphosphate (Tc-MDP/HMDP) scintigraphy for the preoperative evaluation of osteosarcoma response to chemotherapy.

Methods: Studies evaluating the alteration ratio (percentage change of the Tc-99m -MDP/HMDP uptake between before and after neoadjuvant chemotherapy) to predict the histological response of osteosarcoma to chemotherapy were searched for in MEDLINE, EMBASE, and Web of Science.

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Background: Although surgical biopsy has historically been considered to be the standard diagnostic biopsy for soft tissue and bone sarcomas, recent literature suggests that percutaneous core needle biopsy yields similar results. Therefore, an evaluation of the exact diagnostic accuracy and associated influential variables of core needle biopsy that is based on a large data set would be useful.

Methods: We searched MEDLINE, Web of Science, and EMBASE to identify core needle biopsy studies for predicting final histological subtypes of musculoskeletal lesions.

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