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1.
Intern Med ; 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38925971

RESUMEN

A cholecystocutaneous fistula is a type of external biliary fistula that occurs when there is an abnormal connection between the gallbladder and skin. We report the first case of a cholecystocutaneous fistula that occurred in association with the development of lymphoma in the gallbladder. A 76-year-old woman who was under observation for follicular lymphoma with a low tumor burden presented with fatigue and abdominal pain. Imaging studies revealed cholecystitis associated with an abdominal subcutaneous abscess, and lymphoma transformation was confirmed by a lymph node biopsy. Edwardsiella tarda was cultured from both the abdominal subcutaneous abscess and percutaneous transhepatic gallbladder drainage, demonstrating cholecystocutaneous fistula, and open cholecystectomy revealed lymphoma cell infiltration into the gallbladder. Our case showed unique complications, and its successful management was associated with aggressive lymphoma development.

2.
Intern Med ; 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38692914

RESUMEN

Objective Polyclonal hypergammaglobulinemia (PHGG) is a classic problem in internal medicine; however, its conditions and diagnostic procedures have not been well studied. We therefore conducted a retrospective study to characterize the PHGG disease spectrum. Methods We included all patients who underwent serum protein electrophoresis (SPEP) at a hematology tertiary referral center during a five-year period. For these patients, globulin clonality was determined and clinical data were extracted from the records. Results Out of 209 consecutive cases of hypergammaglobulinemia demonstrated by SPEP, 79 cases of PHGG were identified. A total of 46 diagnoses were associated with PHGG. Patients with PHGG were younger (median 71.0 years old (yo) vs. 65 years; P = 0.002) and had lower gamma-globulin levels (median, 26.5 g/L vs 24.8 g/L; P = 0.03) than those with monoclonal hypergammaglobulinemia. Interestingly, out of 79 patients with PHGG, 15 were associated with more than one diagnosis, and a female predominance was observed in this specific subset of patients. PHGG cases with multiple diseases showed higher gamma-globulin levels than those with monoclonal hypergammaglobulinemia, in a disease-dependent manner. Additionally, positive antinuclear antibodies (ANAs) had a discriminative ability with an area under the curve of 0.81 (95% confidence interval, 0.65-0.96) and were highly sensitive to multimorbidity in PHGG (sensitivity, 92.3%). Conclusion These results establish a previously underappreciated unique immunological state of multimorbidity in PHGG and indicate that the gamma-globulin levels and ANAs could serve as markers for the clinical assessment of comorbidities in PHGG.

3.
Br J Haematol ; 2024 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-38797527

RESUMEN

Idiopathic hypereosinophilic syndrome (iHES) is a condition wherein persistent hypereosinophilia associated with end-organ damage occurs without any known causes. Due to the rarity of the disease, insufficient knowledge has been accumulated. We therefore conducted a retrospective, multicentre, nationwide survey on iHES in Japan. A total of 57 patients were identified. For 43 patients who received any treatment, all cases were first treated with corticosteroids. An eosinophil percentage of less than 30% in the bone marrow and the absence of oedema were identified as factors associated with steroid dependency. The 5-year overall survival was 88.2%, and five patients died during follow-up; factors associated with worse overall survival were age >50, haemoglobin <12 g/dL, activated partial thromboplastin time >34 s, the presence of dyspnoea, the presence of thrombotic tendency and the presence of renal failure. Given the rarity of fatalities in our cohort, time-to-next-treatment (TTNT) was further analysed; the presence of renal failure, splenomegaly and lung abnormalities were associated with worse TTNT. Our nationwide study not only demonstrated clinical characteristics and the outcome of patients with iHES but also for the first time revealed clinical factors associated with steroid dependency and duration of first-line corticosteroid efficacy.

4.
Ann Hematol ; 103(4): 1403-1407, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38285080

RESUMEN

Isolated pleural effusion is a rare manifestation of chronic graft versus host disease (cGVHD) after hematopoietic stem cell transplantation (HSCT). We herein report a 58-year-old woman presenting with massive pleural effusion approximately 1 year after allogeneic HSCT, who was successfully treated with corticosteroid. She had discontinued tacrolimus approximately 1 month before she presented with pleural effusion, which was attributed to cGVHD after a thorough exclusion process. This case illustrates a unique manifestation of atypical cGVHD and highlights the need for prompt therapy initiation.


Asunto(s)
Síndrome de Bronquiolitis Obliterante , Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Derrame Pleural , Femenino , Humanos , Persona de Mediana Edad , Enfermedad Injerto contra Huésped/tratamiento farmacológico , Enfermedad Injerto contra Huésped/etiología , Corticoesteroides/uso terapéutico , Derrame Pleural/tratamiento farmacológico , Derrame Pleural/etiología , Tacrolimus/uso terapéutico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Enfermedad Crónica
5.
Intern Med ; 62(11): 1647-1652, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37258209

RESUMEN

We herein report an 83-year-old woman with filgrastim-associated aortitis during chemotherapy for relapsed diffuse large B-cell lymphoma. She had been treated with filgrastim as a prophylaxis for neutropenia during the fourth cycle of chemotherapy from day 9 to 18. On day 21, she developed a fever. Contrast-enhanced computed tomography revealed aortitis of the descending aorta. The fever abated with non-steroidal anti-inflammatory drug treatment. A literature review identified a small number of aortitis cases all caused by prophylactic use of granulocyte colony-stimulating factors (G-CSFs), among which short-acting filgrastim was rarely encountered. The present and previous findings imply a possible relationship between aortitis and prophylactic G-CSF usage.


Asunto(s)
Aortitis , Neoplasias , Neutropenia , Femenino , Humanos , Anciano de 80 o más Años , Filgrastim/efectos adversos , Aortitis/inducido químicamente , Aortitis/diagnóstico por imagen , Aortitis/tratamiento farmacológico , Neoplasias/tratamiento farmacológico , Factor Estimulante de Colonias de Granulocitos/efectos adversos , Neutropenia/tratamiento farmacológico , Fiebre/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
6.
Surg Case Rep ; 9(1): 3, 2023 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-36622508

RESUMEN

BACKGROUND: Total pancreatectomy (TP) is often selected for treatment of various pancreatic diseases. However, the resultant lack of autoregulation of glycometabolism necessitates careful postoperative management. CASE PRESENTATION: A 77-year-old man who had undergone right nephrectomy for renal cell carcinoma 11 years previously presented with multiple histologically diagnosed pancreatic metastases. The patient had no notable comorbidities, including diabetes. Because no extrapancreatic organ metastasis was identified, he underwent TP as a curative treatment. He awoke from anesthesia and was extubated without any problems in the operating room. However, 15 min after entering the intensive care unit, he suddenly lost consciousness and became apneic, resulting in reintubation. Blood gas analysis revealed an increased glucose concentration (302 mg/dL) and mixed acid-base disorder (pH of 7.21) due to insulin insufficiency and fentanyl administration. After induction of continuous intravenous insulin infusion and termination of fentanyl, the glucose concentration and pH gradually improved. He regained clear consciousness and spontaneous ventilation and was extubated the next day with no difficulties or complications. CONCLUSION: This case highlights the importance of active monitoring of the glycemic state and pH after TP because of the possibility of deterioration due to TP itself as well as the lingering effects of anesthesia.

7.
Microscopy (Oxf) ; 69(1): 44-52, 2020 Mar 09.
Artículo en Inglés | MEDLINE | ID: mdl-31990031

RESUMEN

Cortactin regulates actin polymerization and stabilizes branched actin network. In neurons, cortactin is enriched in dendritic spines that contain abundant actin polymers. To explore the function of cortactin in dendritic spines, we examined spine morphology and dynamics in cultured neurons taken from cortactin knockout (KO) mice. Histological analysis revealed that the density and morphology of dendritic spines were not significantly different between wild-type (WT) and cortactin KO neurons. Time-lapse imaging of hippocampal slice cultures showed that the extent of spine volume change was similar between WT and cortactin KO neurons. Despite little effect of cortactin deletion on spine morphology and dynamics, actin turnover in dendritic spines was accelerated in cortactin KO neurons. Furthermore, we detected a suppressive effect of cortactin KO on spine head size under the condition of excessive spine enlargement induced by overexpression of a prominent postsynaptic density protein Shank2. These results suggest that cortactin may have a role in maintaining actin organization by stabilizing actin filaments near the postsynaptic density.


Asunto(s)
Actinas/fisiología , Cortactina/genética , Espinas Dendríticas/fisiología , Proteínas del Tejido Nervioso/genética , Neuronas/fisiología , Animales , Células Cultivadas , Espinas Dendríticas/ultraestructura , Hipocampo , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Imagen de Lapso de Tiempo
8.
Phys Med Biol ; 48(22): N301-12, 2003 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-14680273

RESUMEN

At the Hyogo Ion Beam Medical Center (HIBMC) we have developed a new design method for the bar ridge filter used in proton therapy, taking into consideration the scattering and nuclear interaction effects within the filter itself, which are introduced in the design. In our beam delivery system, the bar ridge filter is employed as the range modulator. It is combined with the wobbler system, and produces a three-dimensionally uniform spread-out Bragg peak (SOBP). The design program predicts the three-dimensional dose distribution. Ridge filters of 3-12 cm SOBP in 1 cm increments were designed in the maximum radiation field for 150 MeV and 190 MeV proton beams so that a uniform physical dose area is obtained in the SOBP region three-dimensionally. Measurements were performed with the constructed ridge filters to verify the uniformity and these were compared with the predictions of the design program. The predictions and measurements were found to be in agreement except for the 12 cm SOBP. The uniformities were better than +/- 3.0% for all SOBPs produced. The ridge filters are now clinically in use.


Asunto(s)
Terapia de Protones , Radioterapia de Alta Energía/instrumentación , Modelos Teóricos , Método de Montecarlo
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