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1.
Forensic Sci Med Pathol ; 19(3): 393-397, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-36180659

RESUMO

In patients with known lung squamous cell carcinoma, it is necessary to be alert to the presence of cancer cell infiltration in the large blood vessels and the heart. In this report, we report a case of a 49-year-old man who was previously diagnosed with squamous cell carcinoma of the lung, underwent autoimmune cell therapy, and was diagnosed posthumously with lung cancer invading the aorta and heart, resulting in severe cardiac tamponade. This case illustrates the value and key points of autopsy in evaluating sudden deaths.


Assuntos
Carcinoma de Células Escamosas , Tamponamento Cardíaco , Neoplasias Pulmonares , Masculino , Humanos , Pessoa de Meia-Idade , Tamponamento Cardíaco/etiologia , Tamponamento Cardíaco/patologia , Neoplasias Pulmonares/patologia , Carcinoma de Células Escamosas/patologia , Pulmão/patologia , Aorta/patologia
2.
Scand Cardiovasc J ; 56(1): 331-336, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35982636

RESUMO

OBJECTIVE: In the case of malignant pericardial effusion and cardiac tamponade, balloon pericardiotomy is an established minimally invasive option to the surgical creation of a subxiphoid pericardial window. Percutaneous balloon pericardiotomy effectively drains recurrent pericardial fluid by creating a pleuro (-abdominal-) pericardial communication. Design. A series of 26 patients with underlying malignant (n = 12) and nonmalignant (n = 14) diseases underwent percutaneous balloon pericardiotomy between 2008 and 2021. All interventions were done through a subxiphoid access under local anesthesia. Results. The mean survival in the malignant and nonmalignant groups was 1.2 versus 48.0 months, respectively (p < .001). There were neither severe periinterventional complications nor in-hospital deaths. In two patients with nonmalignant disease the surgical creation of a pericardial window was necessary during follow-up. The originally described procedure was modified by the removal of all catheters at the end of the intervention. The procedure was safe. It prevented immobility and facilitated an early discharge from the hospital. Conclusion. Our experiences show that percutaneous balloon pericardiotomy is a minimally invasive approach to successfully provide palliation in the group of patients with underlying malignant disease. On the other hand, we have shown that this technique is safe and feasible in the treatment of pericardial effusion based on nonmalignant disease. We think thereby that pericardial balloon pericardiotomy can be considered as a less invasive alternative to surgery in both groups of patients.


Assuntos
Tamponamento Cardíaco , Derrame Pericárdico , Pericardiectomia , Oclusão com Balão , Tamponamento Cardíaco/patologia , Tamponamento Cardíaco/cirurgia , Humanos , Derrame Pericárdico/patologia , Derrame Pericárdico/cirurgia , Técnicas de Janela Pericárdica , Pericardiectomia/efeitos adversos , Pericardiectomia/métodos
3.
Medicina (Kaunas) ; 58(5)2022 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-35630026

RESUMO

BACKGROUND: Thymoma is an epithelial mass arising from the thymus. Most thymomas are located in the anterior mediastinum. Ectopic intrapericardial thymoma is very unusual; to date, only eight cases of pericardial thymoma have been reported. Among thymoma patients, 20% to 25% are associated with myasthenia gravis. However, postoperative myasthenia gravis occurs in less than 1% of cases. Here, we share a rare case of ectopic intrapericardial thymoma that developed postoperative myasthenia gravis six months after surgery. CASE PRESENTATION: A 66-year-old woman visited the outpatient department due to productive cough and chest pain. Chest radiography showed increased soft tissue opacity over the mediastinum. A soft tissue mass in the pericardium and a ground glass nodule in right upper lung were noted using chest computed tomography. The diagnosis of thymoma, type B2, pT3N0M0, and stage IIIA and synchronous adenocarcinoma in situ of the right upper lung was confirmed after surgical removal. Six months later, the patient developed postoperative myasthenia gravis. CONCLUSIONS: Thymoma is rarely considered a differential diagnosis in pericardial tumors. Surgical removal with adjuvant radiation therapy should be performed considering the malignancy potential of thymomas and cardiac complications. In patients without myasthenia gravis, a small chance of postoperative myasthenia gravis remains. Patients should be carefully monitored for myasthenia gravis after surgery.


Assuntos
Tamponamento Cardíaco , Miastenia Gravis , Timoma , Neoplasias do Timo , Idoso , Tamponamento Cardíaco/complicações , Tamponamento Cardíaco/patologia , Feminino , Humanos , Miastenia Gravis/complicações , Miastenia Gravis/diagnóstico , Pericárdio/patologia , Timoma/complicações , Timoma/diagnóstico , Timoma/cirurgia , Neoplasias do Timo/complicações , Neoplasias do Timo/diagnóstico , Neoplasias do Timo/cirurgia
4.
Inflammation ; 45(1): 1-5, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34533672

RESUMO

Novel Coronavirus Disease in most cases produces mild symptoms which resolve after a few days. Some authors hypothesized that SARS-CoV-2 infection could trigger excessive cytokine production leading to a severe multi-organ disease requiring intensive care admission. Respiratory and neurological symptoms are the most frequently reported manifestation of the disease. Indeed, cardiac involvement is reported mostly as a part of a systemic disease. Few isolated cardiac manifestations of COVID-19 infection have been described. We report herein a case of SARS-CoV-2 related severe isolated pericardial involvement requiring ICU admission due to cardiac tamponade needing urgent drainage. Analysis of pericardial fluid from drainage demonstrated a higher cytokine concentration than blood values. Other causes of pericardial disease, such as autoimmunity, bacterial or other than COVID-19 infection, neoplasms or acute myocardial infarction were also evaluated, but all tests confirmed negative results. The suspicion of isolated involvement of the pericardium was therefore demonstrated by the analysis of cytokines which strongly support our hypothesis.


Assuntos
COVID-19/patologia , Tamponamento Cardíaco/patologia , Citocinas/análise , Derrame Pericárdico/cirurgia , Líquido Pericárdico/química , Pericárdio/patologia , Idoso , Tamponamento Cardíaco/cirurgia , Síndrome da Liberação de Citocina/patologia , Humanos , Masculino , Derrame Pericárdico/patologia , Pericárdio/virologia , SARS-CoV-2
6.
Immunol Invest ; 50(4): 356-362, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32718188

RESUMO

Hypereosinophilic syndrome is a rare entity and heterogeneous group of disorders characterized by hypereosinophilia and organ involvement. In this study, we presented a 49-year-old woman with cardiac tamponade in the context of Hypereosinophilic syndrome. Identifying hypereosinophilia as the underlying cause can have tremendous clinical implications for rapid initiation of appropriate treatment to minimize further end organ damage.


Assuntos
Encéfalo , Tamponamento Cardíaco , Ventrículos do Coração , Síndrome Hipereosinofílica , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Tamponamento Cardíaco/diagnóstico por imagem , Tamponamento Cardíaco/patologia , Tamponamento Cardíaco/fisiopatologia , Feminino , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/patologia , Ventrículos do Coração/fisiopatologia , Humanos , Síndrome Hipereosinofílica/diagnóstico por imagem , Síndrome Hipereosinofílica/patologia , Síndrome Hipereosinofílica/fisiopatologia , Pessoa de Meia-Idade
7.
Turk Kardiyol Dern Ars ; 48(7): 703-706, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33034578

RESUMO

The clinical presentation of coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2, can range from only mild, flu-like symptoms to severe progressive pneumonia. Cardiac involvement may be observed during the course of the infection and may include myocarditis, acute myocardial infarction, heart failure, and cardiac rhythm disturbances, but cases describing cardiac tamponade in patients previously diagnosed with COVID-19 are very rare. A 58-year-old female had been hospitalized in another hospital 2 weeks prior to the currently described presentation due to atypical pneumonia. A nasopharyngeal swab specimen was positive for COVID-19. The hospitalization was uncomplicated and she was discharged after a week. She presented at our emergency department with symptoms of shortness of breath and swelling in both legs. A bedside transthoracic echocardiography showed globally depressed left ventricular contraction with an ejection fraction of 30% and there was significant pericardial effusion, which surrounded the entire heart and restricted diastolic filling. The patient was admitted to the coronary intensive care unit with the diagnosis of pericardial tamponade. Bedside pericardiocentesis was performed and serohemorrhagic fluid was drained. Pericardial effusion and pericardial tamponade should be considered in the differential diagnosis of patients with COVID-19 exhibiting dyspnea or worsening of dyspnea. A 58-year-old female has been hospitalized in another hospital two weeks ago due to atypical pneumonia. Her nasopharyngeal swab specimen was positive for COVID-19. She had an uncomplicated course during the hospitalization and was discharged a week ago. She presented to our emergency department (ED) with symptoms of shortness of breath and swelling in both legs. We performed bedside transthoracic echocardiography (TTE) which showed globally depressed left ventricular contraction with ejection fraction (EF) of 30% and there was significant pericardial effusion which surrounded the entire heart and restricted diastolic filling. The patient was admitted to the coronary intensive care unit (CICU) with the diagnosis of pericardial tamponade. Bedside pericardiosentesis was performed and serohemorrhagic fluid was drained. Patients with COVID-19 infection who develops or have worsening dyspnea, pericardial effusion and pericardial tamponade should be considered in differential diagnosis.


Assuntos
Tamponamento Cardíaco/virologia , Infecções por Coronavirus/complicações , Pneumonia Viral/complicações , Betacoronavirus , COVID-19 , Tamponamento Cardíaco/diagnóstico , Tamponamento Cardíaco/patologia , Feminino , Coração/diagnóstico por imagem , Humanos , Pulmão/diagnóstico por imagem , Pulmão/patologia , Pessoa de Meia-Idade , Miocárdio/patologia , Pandemias , SARS-CoV-2
8.
J Comput Assist Tomogr ; 44(4): 599-604, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32697531

RESUMO

BACKGROUND: In cardiac tamponade, coronary sinus (CS) as an intrapericardial structure can be easily compressed, whereas inferior vena cava (IVC) dilates. This inverse relationship may augment their roles in the evaluation of tamponade imaging. AIM: We assessed the usefulness of computerized tomographic measures of CS diameter and also CS/IVC ratio to predict tamponade in clinically stable patients with large pericardial effusion. METHODS: Sixty-six clinically stable patients who had large pericardial effusions were included. Coronary sinus diameter was measured from the point at 1 cm proximal to the CS ostium. Inferior vena cava diameter was measured from the segment between its right atrial orifice and hepatic vein. RESULTS: Patients with tamponade had smaller CS diameter and CS/IVC ratio. After adjusting with other parameters, only either CS diameter or CS/IVC ratio predicted tamponade, respectively. (Nagelkerke r value for CS was 53.7% and 72.1% for CS/IVC ratio). In Receiver Operating Characteristic Curve analysis, a cutoff value of 6.85 mm for CS diameter had 82.6% sensitivity and 83.7% specificity and a cutoff value of 27% for CS/IVC ratio had 87.0% sensitivity and 86.0% specificity for predicting cardiac tamponade. CONCLUSIONS: The tomographic measures of both the CS diameter and the CS/IVC ratio predicted tamponade in clinically stable patients with large pericardial effusion. Compared with CS diameter, CS/IVC ratio seemed to be a more powerful predictor of tamponade.


Assuntos
Tamponamento Cardíaco/diagnóstico por imagem , Seio Coronário/diagnóstico por imagem , Veia Cava Inferior/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Tamponamento Cardíaco/patologia , Seio Coronário/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios X , Veia Cava Inferior/patologia
9.
EBioMedicine ; 55: 102744, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32344201

RESUMO

BACKGROUND: Excessive bleeding, incomplete wound drainage, and subsequent accumulation of blood and clots in the pericardium have been associated with a broad spectrum of bleeding-related complications after cardiac surgery. We developed and studied the continuous postoperative pericardial flushing (CPPF) method to improve wound drainage and reduce blood loss and bleeding-related complications. METHODS: We conducted a single-center, open-label, ITT, randomized controlled trial at the Academic Medical Center Amstserdam. Adults undergoing cardiac surgery for non-emergent valvular or congenital heart disease (CHD) were randomly assigned (1:1) to receive CPPF method or standard care. The primary outcome was actual blood loss after 12-hour stay in the intensive care unit (ICU). Secondary outcomes included bleeding-related complications and clinical outcome after six months follow-up. FINDINGS: Between May 2013 and February 2016, 170 patients were randomly allocated to CPPF method (study group; n = 80) or to standard care (control group; n = 90). CPPF significantly reduced blood loss after 12-hour stay in the ICU (-41%) when compared to standard care (median differences -155 ml, 95% confidence interval (CI) -310 to 0; p=≤0·001). Cardiac tamponade and reoperation for bleeding did not occur in the study group versus one and three in the control group, respectively. At discharge from hospital, patients in the study group were less likely to have pleural effusion in a surgically opened pleural cavity (22% vs. 36%; p = 0·043). INTERPRETATION: Our study results indicate that CPPF is a safe and effective method to improve chest tube patency and reduce blood loss after cardiac surgery. Larger trials are needed to draw final conclusions concerning the effectiveness of CPPF on clinically relevant outcomes.


Assuntos
Procedimentos Cirúrgicos Cardíacos/métodos , Tamponamento Cardíaco/diagnóstico , Drenagem/métodos , Cardiopatias Congênitas/cirurgia , Derrame Pleural/diagnóstico , Complicações Pós-Operatórias/diagnóstico , Hemorragia Pós-Operatória/diagnóstico , Adulto , Idoso , Tamponamento Cardíaco/etiologia , Tamponamento Cardíaco/patologia , Tamponamento Cardíaco/cirurgia , Feminino , Seguimentos , Cardiopatias Congênitas/diagnóstico , Cardiopatias Congênitas/patologia , Humanos , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Pericárdio/patologia , Pericárdio/cirurgia , Derrame Pleural/etiologia , Derrame Pleural/patologia , Derrame Pleural/cirurgia , Complicações Pós-Operatórias/patologia , Complicações Pós-Operatórias/cirurgia , Hemorragia Pós-Operatória/etiologia , Hemorragia Pós-Operatória/patologia , Hemorragia Pós-Operatória/cirurgia , Reoperação/estatística & dados numéricos , Resultado do Tratamento
10.
BMJ Case Rep ; 13(4)2020 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-32332043

RESUMO

In patients who experience relapse of multiple myeloma, upwards of 30% can have extramedullary disease. The presence of extramedullary multiple myeloma is typically associated with adverse cytogenetics and a poor prognosis. Organs most commonly involved include the liver, skin, central nervous system, pleural effusions, kidney, lymph nodes, and pancreas. We present the case of a 53-year-old man with IgA kappa multiple myeloma with the adverse cytogenetic findings of t(4;14) and 1q21 gain who had achieved a stringent complete (sCR) response after initial therapy with carfilzomib, lenalidomide and dexamethasone. Stringent complete response is defined as the normalization of the free light chain ratio in the serum and an absence of clonal cells in the bone marrow in additiion to criteria needed to achieve complete response. Prior to undergoing a planned autologous stem cell transplant, this patient experienced cardiac tamponade secondary to extramedullary relapse of his multiple myeloma which was limited to the pericardium. In response, his treatment regimen was transitioned to pomalidomide, bortezomib, dexamethasone and cyclophosphamide for three cycles after which he again achieved sCR and ultimately underwent autologous stem cell transplant. Post-transplant consolidation therapy was administered in the form of pomalidomide, bortezomib and dexamethasone, followed by pomalidomide and bortezomib maintenance, which he has continued to receive for 3 years without evidence of disease progression.


Assuntos
Tamponamento Cardíaco/patologia , Mieloma Múltiplo/patologia , Mieloma Múltiplo/terapia , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/terapia , Pericárdio/patologia , Atitude Frente a Saúde , Terapia Combinada , Intervalo Livre de Doença , Quimioterapia Combinada , Transplante de Células-Tronco Hematopoéticas , Humanos , Masculino , Pessoa de Meia-Idade , Transplante Autólogo
11.
Thorac Cancer ; 11(5): 1350-1353, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32181993

RESUMO

Several studies have demonstrated increased pericardial effusion during anti-PD-1 immunotherapy, and treatment in patients who have developed pericardial tamponade is controversial. In this study, we describe a 63-year-old woman with stage IVA lung adenocarcinoma given pembrolizumab as a first-line therapy. After four cycles of pembrolizumab treatment, the patient suddenly developed a pericardial tamponade. Although pericardial effusion was increased, her tumor lesions were reduced. After an emergency pericardiocentesis, she continued the pembrolizumab therapy without recurrent pericardial effusions for three months until the primary tumor and lymph node metastasis progressed. Nine months after the pericardiocentesis, the patient died of progressive lung cancer, but pericardial effusion did not recur throughout the treatment course. This case study suggests that pembrolizumab therapy can be continued with a strict follow-up in some patients with pembrolizumab-induced pericardial tamponade. KEY POINTS: • Significant findings of the study Our patient developed pericardial tamponade during pembrolizumab treatment but continued pembrolizumab treatment after emergency pericardiocentesis without recurrent pericardial effusions. • What this study adds Pembrolizumab treatments may be resumed with a strict follow-up in some patients with treatment-related pericardial tamponade.


Assuntos
Adenocarcinoma de Pulmão/tratamento farmacológico , Anticorpos Monoclonais Humanizados/efeitos adversos , Antineoplásicos Imunológicos/efeitos adversos , Tamponamento Cardíaco/patologia , Neoplasias Pulmonares/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Adenocarcinoma de Pulmão/patologia , Tamponamento Cardíaco/induzido quimicamente , Feminino , Humanos , Neoplasias Pulmonares/patologia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Prognóstico
12.
Cardiovasc Pathol ; 47: 107203, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32126495

RESUMO

A 62-year-old male patient was pronounced dead on admission to the tertiary care hospital. The victim had right ventricular STEMI three years ago. The autopsy showed pericardial tamponade due to the rupture of an acute myocardial infarction of the right ventricle.


Assuntos
Tamponamento Cardíaco/etiologia , Ruptura Cardíaca Pós-Infarto/etiologia , Miocárdio/patologia , Infarto do Miocárdio com Supradesnível do Segmento ST/complicações , Autopsia , Tamponamento Cardíaco/patologia , Causas de Morte , Evolução Fatal , Fibrose , Ruptura Cardíaca Pós-Infarto/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Necrose , Infiltração de Neutrófilos , Infarto do Miocárdio com Supradesnível do Segmento ST/patologia , Fatores de Tempo
13.
Forensic Sci Med Pathol ; 16(2): 366-369, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31713779

RESUMO

In forensic practice, autopsies are regularly carried out in cases of suspected medical malpractice to determine whether a treatment resulted in death. Intraoperative deaths, as well as deaths shortly after an operation, can be particularly suspicious as iatrogenic. We report a case of a 75-year-old woman with a complaint of intermittent angina pectoris who underwent cardiac catheterization. Intra-interventionally, coronary artery dissection occurred and was stabilized by the placement of two stents. After this procedure, the patient suffered from chest pain. At 5.5 h after the procedure ended, the woman suddenly and unexpectedly died. At forensic autopsy, a hemopericardium with cardiac tamponade was found to have been caused by the rupture of a myocardial infarction that was several days old and had remained clinically unrecognized. This case report illustrates the importance of forensic autopsies in terms of external quality assurance in medicine.


Assuntos
Tamponamento Cardíaco/patologia , Vasos Coronários/lesões , Diagnóstico Ausente , Infarto do Miocárdio/patologia , Derrame Pericárdico/patologia , Stents/efeitos adversos , Idoso , Cateterismo Cardíaco/efeitos adversos , Feminino , Humanos , Doença Iatrogênica , Ruptura Espontânea/patologia
15.
Immunotherapy ; 11(18): 1533-1540, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31815569

RESUMO

Immunotherapy drugs are associated with a multitude of immune-related adverse events. We describe a case of cardiac tamponade in a patient with stage IV lung adenocarcinoma, with almost 100% expression of PDL-1, treated with pembrolizumab. The patient is a 62-year-old male who developed worsening shortness of breath after five cycles of pembrolizumab. He was diagnosed with large pericardial effusion on computed tomography chest. Echocardiogram confirmed tamponade physiology. He was treated with discontinuation of pembrolizumab and urgent pericardial window followed by high dose prednisone with tapering. The patient responded very well to the treatment. We have comprehensively reviewed cases of pericardial effusion secondary to either immune mediated mechanisms or pseudoprogression.


Assuntos
Adenocarcinoma de Pulmão/terapia , Anticorpos Monoclonais Humanizados/efeitos adversos , Antineoplásicos Imunológicos/efeitos adversos , Tamponamento Cardíaco/induzido quimicamente , Neoplasias Pulmonares/terapia , Adenocarcinoma de Pulmão/patologia , Anti-Inflamatórios/uso terapêutico , Anticorpos Monoclonais Humanizados/administração & dosagem , Antineoplásicos Imunológicos/administração & dosagem , Tamponamento Cardíaco/tratamento farmacológico , Tamponamento Cardíaco/patologia , Tamponamento Cardíaco/fisiopatologia , Cardiotoxicidade/tratamento farmacológico , Cardiotoxicidade/patologia , Cardiotoxicidade/fisiopatologia , Humanos , Imunoterapia/efeitos adversos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Derrame Pericárdico/induzido quimicamente , Derrame Pericárdico/tratamento farmacológico , Derrame Pericárdico/patologia , Derrame Pericárdico/fisiopatologia , Prednisona/uso terapêutico , Resultado do Tratamento
16.
Leg Med (Tokyo) ; 41: 101637, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31683096

RESUMO

The use of synthetic cannabinoids is being increasingly recognised worldwide, but the chemical compositions and physiological effects of these drugs are poorly characterised and are continually changing. New substances are constantly being added to the content of synthetic cannabinoids and they are rarely identified on toxicological screening tests. Due to their structures synthetic cannabinoids and their effects have been compared to the psychoactive compound, Δ-9-tetrahydrocannabinol (THC), found in marijuana. On the molecular level, they are potent cannabinoid receptor agonists that also may have affinity for other types of receptors such as those on platelets. Reported symptoms of toxicity include anxiety, agitation, paranoia, hallucinations, tachycardia, hypertension, excessive sweating, nausea, and vomiting. They can also be linked to serious adverse cardiovascular events and can affect the cardiovascular system causing hypotension and bradycardia, myocardial infarction, atrial fibrillation, prolonged QTc, and Mobitz type II atrioventricular block, as well as interfere with the aggregation of platelets. We present a case report of a cardiac tamponade with toxicological findings positive for synthetic cannabinoids. This case highlights the importance of testing routinely for novel psychoactive compounds, and recognising their potential to cause life-threatening conditions.


Assuntos
Dissecção Aórtica/patologia , Ruptura Aórtica/patologia , Canabinoides/urina , Tamponamento Cardíaco/patologia , Túnica Adventícia/patologia , Aorta/patologia , Tamponamento Cardíaco/etiologia , Patologia Legal , Toxicologia Forense , Hemorragia/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/patologia , Placa Aterosclerótica/patologia , Túnica Íntima/patologia , Túnica Média/patologia
17.
Diagn Cytopathol ; 47(9): 927-929, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31120622

RESUMO

Involvement of body fluids by adenocarcinoma is a common phenomenon. However, metastasis to the pericardial fluid by adenocarcinoma is a rare occurrence. The most common malignancies associated with malignant pericardial effusion are carcinoma of the lung, breast, esophagus, melanoma, lymphoma, and leukemia. Here, we discuss a case of a 36-year-old female with hemorrhagic pericardial effusion presenting with cardiac tamponade and psammoma bodies which was suspected and reported as metastatic papillary carcinoma of thyroid on cytomorphology; however, the immunocytochemical and radiological features confirmed metastatic papillary adenocarcinoma of lung contrary to the thyroid which is more common and expected.


Assuntos
Tamponamento Cardíaco , Neoplasias Cardíacas , Derrame Pericárdico , Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide , Adulto , Tamponamento Cardíaco/metabolismo , Tamponamento Cardíaco/patologia , Feminino , Neoplasias Cardíacas/metabolismo , Neoplasias Cardíacas/patologia , Neoplasias Cardíacas/secundário , Humanos , Metástase Neoplásica , Derrame Pericárdico/metabolismo , Derrame Pericárdico/patologia , Câncer Papilífero da Tireoide/metabolismo , Câncer Papilífero da Tireoide/patologia , Neoplasias da Glândula Tireoide/metabolismo , Neoplasias da Glândula Tireoide/patologia
19.
Am J Pathol ; 189(4): 753-761, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30664862

RESUMO

Glucocorticoid-induced secondary osteoporosis is the most predictable side effect of this anti-inflammatory. One of the main mechanisms by which glucocorticoids achieve such deleterious outcome in bone is by antagonizing Wnt/ß-catenin signaling. Sclerostin, encoded by Sost gene, is the main negative regulator of the proformative and antiresorptive role of the Wnt signaling pathway in the skeleton. It was hypothesized that the partial inactivation of sclerostin function by genetic manipulation will rescue the osteopenia induced by high endogenous glucocorticoid levels. Sost-deficient mice were crossed with an established mouse model of excess glucocorticoids, and the effects on bone mass and structure were evaluated. Sost haploinsufficiency did not rescue the low bone mass induced by high glucocorticoids. Intriguingly, the critical manifestation of Sost deficiency combined with glucocorticoid excess was sporadic, sudden, unprovoked, and nonconvulsive death. Detailed histopathologic analysis in a wide range of tissues identified peracute hemopericardium and cardiac tamponade to be the cause. These preclinical studies reveal outcomes with direct relevance to ongoing clinical trials that explore the use of antisclerostin antibodies as a treatment for osteoporosis. They particularly highlight a potential for increased cardiovascular risk and may inform improved stratification of patients who might otherwise benefit from antisclerostin antibody treatment.


Assuntos
Densidade Óssea/efeitos dos fármacos , Doenças Ósseas Metabólicas/etiologia , Tamponamento Cardíaco/etiologia , Glucocorticoides/toxicidade , Haploinsuficiência , Peptídeos e Proteínas de Sinalização Intercelular/fisiologia , Proteínas Adaptadoras de Transdução de Sinal , Animais , Doenças Ósseas Metabólicas/metabolismo , Doenças Ósseas Metabólicas/patologia , Tamponamento Cardíaco/metabolismo , Tamponamento Cardíaco/patologia , Modelos Animais de Doenças , Feminino , Marcadores Genéticos , Masculino , Camundongos , Camundongos Endogâmicos C3H , Camundongos Endogâmicos C57BL , Camundongos Knockout , Via de Sinalização Wnt
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