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Introduction and importance: NUT carcinoma of the thorax is an extremely rare neoplasm characterized by a translocation between the NUT M1 gene and members of the bromodomain genetic family. Due to the rarity of the neoplasm, standardized treatment guidelines have not yet been established. Several chemotherapeutic agents have been used with limited success, due to the rapid development of resistance to treatment. Pembrolizumab, an anti-programmed-death-1 antibody, has become increasingly used in non-small-cell lung carcinomas. Consequently, pembrolizumab may be beneficial in the treatment of NUT carcinoma. Case presentation: In this article, we discuss the case of a 24-year-old man who was referred to our centre due to an incidental mass finding on an unrelated computed tomography scan. Morphological and immunohistochemical characteristics are highly suspicious of NUT carcinoma with bone metastasis. The patient was placed on carboplatin, paclitaxel, and pembrolizumab as first-line therapy. The patient later progressed and began receiving second-line treatment according to Ewing's protocol. 20 months later, the mass continued to grow, and the patient was started on docetaxel and gemcitabine, which was unsuccessful. After discussing with the patient, he decided to stop chemotherapy and begin palliative care. Clinical discussion: NUT carcinoma is an aggressive tumour with poor prognosis. Treatment options are limited and pembrolizumab does not seem to influence the clinical outcome of the neoplasm. Conclusion: Overall, pembrolizumab does not seem to improve the outcomes of NUT carcinoma patients. To the authors' knowledge, this is the second article reporting the effects of pembrolizumab on the progression of NUT carcinoma.
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Nowadays, the diagnosis of cardiac myxomas (CM), particularly the histological types, remains a challenge. Two-dimensional (2D) transthoracic (TT) and transesophageal (TEE) echocardiography (ECHO) represent the first steps in the imaging pathway. 3D ECHO, implemented in imaging practice, appears to be an emerging diagnostic technique that overcomes some of the limitations of 2D ECHO while integrating the information provided by magnetic resonance (MRI). However, its role in the imaging arena is still debatable. Analyzing 17 myxomas in 13 patients, the study uncovers a diverse anatomical spectrum. Classical CM morphology is a minority, with most myxomas being sessile and originating from unexpected locations (right ventricular outflow tract and left atrial appendage). Texture and size variations are also noted. Comparing imaging, 2D TEE outperforms 2D TT in visualizing anatomical features, especially attachment types. 3D TEE confirms 2D TT findings and offers more detailed assessments, identifying peduncles missed in four cases by 2D TEE. Two small recurrent myxomas were exclusively detected by 3D TEE, not by 2D TEE or MRI. Two patients have papillary myxomas, one has an embolism. Another patient with a solid myxoma also suffers an embolism, with a clot found at the apex during surgery. Our study showed that CM has a wide anatomical spectrum beyond the typical features, making the diagnosis challenging. Therefore, a multimodality imaging approach is essential for distinguishing CM from other cardiac masses and differentiating myxoma histological types. These findings stress the importance of incorporating 3D ECHO alongside other imaging techniques for a comprehensive evaluation.
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Diagnosing cardiac masses, especially those related to cardiac tumors, is often challenging in clinical practice. Though myxomas are the most common and well-known benign cardiac tumors, other rare and often-neglected tumors can be difficult to diagnose. In this case report, the authors describe a left ventricular cardiac mass with unique and striking imaging features.
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Neoplasias Cardíacas , Mixoma , Humanos , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/cirurgia , Neoplasias Cardíacas/diagnóstico por imagem , Neoplasias Cardíacas/cirurgia , Mixoma/diagnóstico por imagem , Mixoma/cirurgia , Diagnóstico DiferencialRESUMO
Adrenal incidentaloma (AI) is an incidental detection of an adrenal mass on an image not performed for a suspected adrenal problem. AI has become a commonly encountered lesion that requires further investigations for evidence of hormonal hypersecretion or malignancy potential. According to guidelines, surgical intervention is the standard of care for unilateral AI. We report on a case of a 64-year-old female who presented with a nonfunctional adrenal mass associated with compressive symptoms, which was revealed to be a mixed hyaline vascular and plasma cell variant Castleman disease (CD) after surgical resection. Although hyaline vascular variant and plasma cell variant of CD has been identified in adrenal glands, this is the first report of a mixed hyaline vascular and plasma cell variant in an adrenal mass.
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Pediatric-type follicular lymphoma is an uncommon and newly recognized entity of lymphoid neoplasm commonly encountered in the young population. Despite its indolent clinical course and localized nodal involvement, it has been characterized by its high-grade histopathological features. The overlapping features between this disease and several entities have made approaching this unique entity significantly challenging, with all such features being reflected in the strict diagnostic criteria highlighted by the WHO 2016 lymphoid malignancy classification. Despite its characteristic high-grade histology, its cure rates have remained high, with relapse and transformation rarely occurring. Interestingly, several cases have achieved remission following nodal disease resection, possibly eliminating the need for chemotherapy and radiation and preventing long-term morbidities from later approaches in disease survivors.
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Acute lymphoblastic leukemia (ALL) accounts for <1% of adult cancers. Extramedullary relapse of ALL has been primarily reported in pediatric patients or hematopoietic stem cell transplant recipients, and the gastrointestinal (GI) tract is a less frequently reported site of extramedullary relapse. Here, we report a case of a 30-year-old male who was a known case of ALL with multiple relapses and allogenic stem cell transplantations. The patient presented with acute lower GI bleeding and was confirmed to have an extramedullary relapse of ALL in the ascending colon. As the patient already had early relapses after two hematopoietic stem cell transplants in the past, he was managed with palliative chemotherapy, consisting of vincristine, dexamethasone, and rituximab, following which the patient achieved complete remission. This case highlights the importance of recognizing uncommon presentations of ALL such as those involving the GI tract.
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ABSTRACT: Locally advanced nasopharyngeal carcinoma (LA-NPC) is more prevalent in some geographic regions, including Saudi Arabia. Typically, Tumor-Node-Metastasis (TNM) staging is used in NPC. However, it is inadequate to assess the prognosis of LA-NPC.Therefore, we analyzed and compared several previously reported prognostic factors in LA-NPC patients, retrospectively, including CD3+tumor-infiltrating lymphocytes (TIL) and peripheral blood hemoglobin, EBV DNA copy number, ratios of albumin-to-alkaline phosphatase ratio (AAPR), neutrophils, or platelets-to-lymphocytes (NLR, PLR). The studied cohort was 83 LA-NPC patients previously recruited for a randomized phase II trial with a different aim.Univariate cox regression analysis showed no significant correlation between any of the tested variables with disease-free survival (DFS) or overall survival (OS) with the exception of low CD3+ TIL infiltration, which correlated significantly with DFS (HRâ=â6.7, Pâ=â<.001) and OS (HRâ=â9.1, Pâ=â.043). Similarly, in a validated multivariate cox regression analysis, only low CD3+ TIL correlated significantly with DFS (HRâ=â7.0, P < .001 for TIL) and OS (HRâ=â9.4, Pâ=â.040).Among tested parameters, CD3+ TIL was the only independent prognostic marker for DFS and OS in LA-NPC patients treated with CCRT. This study supports the use of CD3+TIL, over other factors, as an independent prognostic factor in LA-NPC.
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Carcinoma/patologia , Linfócitos do Interstício Tumoral , Carcinoma Nasofaríngeo/patologia , Neoplasias Nasofaríngeas/patologia , Adolescente , Adulto , Idoso , Biomarcadores Tumorais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Índice de Gravidade de DoençaRESUMO
Interstitial lung disease (ILD) is a well-established common manifestation of idiopathic inflammatory myopathies. Yet, till now, the pathogenetic mechanisms are still poorly understood, classification is evolving and prognosis is variable. A refractory and rapidly progressive ILD (RPILD) that is associated with dermatomyositis (DM) with minimal muscle weakness and normal creatine kinase (termed clinically amyopathic DM) is increasingly being recognized, with more incidence in Asians. However, we are not aware of reports of the Arab region. Herein, we present a 38-year-old male with this condition that ended with a fatal outcome despite aggressive therapy, with a review of recent literature.
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Mycobacterium tuberculosis infection (TB) masquerading as lung tumor is well reported, but its mimicry as metastatic thoracic cancer is rare. We report the case of a young male who presented with clinical and radiological picture of lung cancer but investigations confirmed it as TB. A 35-year-old male, with 18-pack year of smoking history, presented with dry cough, anorexia, weight loss, and lower back and left hip pain. Chest imaging showed right upper lobe speculated mass with mediastinal and hilar lymphadenopathy and a lytic lesion in the left sacral area. Magnetic resonance imaging of the spine and pelvis revealed lytic lesion in the left sacrum. Fluorodeoxyglucose positron emission tomography computed tomography scan of the whole body showed hypermetabolic lung lesion with ipsilateral mediastinal, supraclavicular, splenic, and bone metastasis in the left aspect of the sacrum. Computed tomography (CT)-guided biopsy of the lung lesion showed necrotizing granuloma and tissue culture was positive for pan-susceptible M. tuberculosis. Follow-up CT scan showed complete resolution of the lung lesion and lymph nodes after anti-TB treatment with significant reduction in the sacral lesion. Mycobacterial infection may mimic metastatic lung cancer and should always be considered a differential diagnosis.
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Neoplasias Pulmonares , Mycobacterium tuberculosis , Tuberculose , Adulto , Humanos , Masculino , Mediastino , Tomografia Computadorizada por Raios XRESUMO
INTRODUCTION: Most intraocular T-cell lymphomas arise from metastatic source. We are reporting a rare case of intraocular T-cell lymphoma masquerading as pseudo-hypopyon and vitritis. The eye involvement proved to represent a metastatic spread from a co-existing adrenal T-cell lymphoma, which was discovered after the initial ophthalmic presentation. PRESENTATION OF CASE: Our patient was a 71-year-old Saudi man, who was admitted for workup of anemia and weight loss. He also noticed a gradual, painless decline in his vision of both eyes, for which he was referred to the ophthalmology unit. Ocular examination revealed left eye 3 mm pinkish hypopyon. A diagnosis of T-cell lymphoma was made based on careful microscopic examination of the left aqueous fluid, immunohistochemical (IHC) and Flow cytometry analysis. Computerized tomography showed a large invasive left adrenal mass, which has proven to be a primary adrenal lymphoma with multiple metastasis including the intraocular involvement. DISCUSSION: Primary intraocular lymphoma is the most common lymphoma in the eye. Intraocular T-cell lymphoma is rare and is mostly metastatic. On the other hand, primary adrenal lymphoma (especially T-cell lymphoma) is also rare. There are only 5 cases of primary adrenal lymphoma, two of which, resulted in eye metastasis similar to our case. Primary adrenal lymphoma is known to be aggressive. Our patient eventually passed away. CONCLUSION: This report stresses the importance of referring patients with systemic lymphoma to an ophthalmologist to be evaluated for ocular involvement. Even though intraocular metastatic adrenal T cell lymphoma is rare, high clinical suspicion in patients who are presenting with pinkish hypopyon in the presence of other constitutional symptoms is essential.
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BACKGROUND: Locally advanced nasopharyngeal carcinoma (LA-NPC) is a relatively rare disease in the west but more common in East Asia and areas of the Middle East like Saudi Arabia. Despite the advances in radiation therapy techniques, some patients relapse after treatment. In the coming era of cancer immunotherapy, prognostic factors for LA-NPC need to be further defined using immune-relevant markers. Several markers are available; however, the most robust and accessible/affordable marker is not well-defined. METHODS: Retrospectively, tumor-infiltrating lymphocytes (TIL), their subsets as well as tumoral PD-L1 expression were analyzed in tumor tissues from 63 LA-NPC patients treated with platinum-based concurrent chemo-radiotherapy (CCRT) in addition to 20 cases with metastatic (MET) disease. Immunostaining was done using a validated and fully automated system. Scoring was done by two independent pathologists and results were compared. RESULTS: There was no statistical difference between LA-NPC and MET disease in terms of CD3+, CD8+ TIL infiltration, or tumoral PD-L1 expression. In LA-NPC, low CD3+ TIL infiltration highly correlated with shorter disease-free survival (DFS, HR = 8.5, p = < 0.001) and overall survival (OS, HR = 13, p = 0.015) with substantial agreement between scoring pathologists. A similar correlation was found between low CD8+ TIL and survival. Correlation of total TIL was significant with DFS (HR = 4.0, p = 0.008), borderline with OS and the correlation was dependent on the scoring pathologist. Having histological WHO type I&II correlated significantly with shorter DFS (HR 4.03, p = 0.008) and low CD3+ TIL (p = 0.009). Subgroup analysis of LA-NPC that included undifferentiated type (WHO type III) cases only (n = 58), showed a strong correlation between low CD3+ TIL and shorter DFS (HR = 7.2, p = < 0.001) and OS (HR = 17.3, p = 0.008). PD-L1 was expressed in 72% of type III LA-NPC cases while lacking PD-L1 expression correlated with shorter OS (HR = 6.1, p = 0.031). Patients with a combination of low CD3+ TIL and lack of PD-L1 expression had the worst OS (p < 0.001). CONCLUSIONS: CD3+ TIL is promising as a robust and independent prognostic marker for DFS and OS of LA-NPC patients treated with platinum-based CCRT. We would suggest the use of CD3 + TIL as a stratifying factor for LA-NPC, which warrants further validation in prospective trials.
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Complexo CD3/metabolismo , Quimiorradioterapia/métodos , Linfócitos do Interstício Tumoral/imunologia , Carcinoma Nasofaríngeo/terapia , Neoplasias Nasofaríngeas/terapia , Platina/uso terapêutico , Adolescente , Adulto , Idoso , Antígeno B7-H1/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Carcinoma Nasofaríngeo/imunologia , Neoplasias Nasofaríngeas/imunologia , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Subpopulações de Linfócitos T/imunologia , Resultado do Tratamento , Adulto JovemRESUMO
Sanger Sequencing and immunohistochemistry was employed to investigate the TERT promoter mutations and TERT protein expression with their association to clinicopathological characteristics in over 2200 samples of Middle Eastern origin from 13 different types of cancers. The TERT promoter mutations were most frequently present in bladder cancer (68.6%), followed by central nervous system tumors (28.7%), thyroid cancer (15.4%), prostate cancer (9.3%), endometrial carcinoma (3.7%), rhabdomyosarcoma (1.4%), colorectal cancer (1%), epithelial ovarian carcinoma (0.7%) and breast cancer (0.7%). No mutations were observed in other types of cancers. In bladder cancer, we found significant inverse association with metastasis and a trend to good survival in patients with TERT mutations. In gliomas, TERT promoter mutations predicted poor prognosis. In thyroid cancer, high frequency of TERT mutation was observed in poorly differentiated carcinoma. In addition, TERT promoter mutations were associated with aggressive markers and poor outcome in follicular thyroid carcinomas.
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Neoplasias da Mama/genética , Neoplasias do Sistema Nervoso Central/genética , Mutação , Neoplasias da Próstata/genética , Telomerase/genética , Neoplasias da Bexiga Urinária/genética , Biomarcadores Tumorais/genética , Neoplasias da Mama/patologia , Neoplasias do Sistema Nervoso Central/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Regiões Promotoras Genéticas , Neoplasias da Próstata/patologia , Neoplasias da Bexiga Urinária/patologiaRESUMO
Organizing pneumonia (OP) may be idiopathic or secondary to a variety of causes including drugs. OP and other forms of pulmonary toxicity secondary to cetuximab, however, have been described rarely. It is paramount to recognize and differentiate OP from other common conditions that cancer patients are prone to such as infection and pulmonary embolism. A 69-year-old man with colorectal cancer received ten cycles of palliative chemotherapy [FOLFIRI (5-Fluorouracil, Leucovorin, Irinotecan) and cetuximab] with clinical and radiological response. He developed dyspnea following cycle 4, then 6 weeks later presented with cough, fever, tachypnea, hypoxia, bilateral crackles and diffuse pulmonary shadows. He was started on antibiotics but his condition deteriorated further. Cultures, including blood and bronchioalveolar lavage, grew no pathogens and molecular analysis and cytology for bacteria viruses were negative. Trans-bronchial biopsy was consistent with organizing pneumonia. Treatment with corticosteroids resulted in dramatic clinical and radiological resolution with normalization of gas exchange and pulmonary function. Corticosteroids were stopped and he was restarted on FOLFIRI and remained well with no relapse over a year of follow up. Although pulmonary toxicity secondary to cetuximab is uncommon, it is important to recognize, as it may be associated with poor prognosis. To the best of our knowledge, this is the first report of OP attributed to cetuximab with histopathological evidence.
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Antineoplásicos Imunológicos/toxicidade , Cetuximab/toxicidade , Neoplasias Colorretais/tratamento farmacológico , Pneumonia em Organização Criptogênica/induzido quimicamente , Dispneia/etiologia , Corticosteroides/administração & dosagem , Corticosteroides/uso terapêutico , Idoso , Antineoplásicos Imunológicos/efeitos adversos , Antineoplásicos Imunológicos/uso terapêutico , Cetuximab/efeitos adversos , Cetuximab/uso terapêutico , Pneumonia em Organização Criptogênica/tratamento farmacológico , Pneumonia em Organização Criptogênica/patologia , Humanos , Masculino , Resultado do TratamentoRESUMO
BACKGROUND: Pulmonary fibrosis is one of the leading indications for lung transplantation. The disease, which is of unknown aetiology, can be progressive, resulting in distortion of the extracellular matrix (ECM), inflammation, fibrosis and eventual death. METHODS: 13 patients born to consanguineous parents from two unrelated families presenting with interstitial lung disease were clinically investigated. Nine patients developed respiratory failure and subsequently died. Molecular genetic investigations were performed on patients' whole blood or archived tissues, and cell biological investigations were performed on patient-derived fibroblasts. RESULTS: The combination of a unique pattern of early-onset lung fibrosis (at 12-15â years old) with distinctive radiological findings, including 1) traction bronchiectasis, 2) intralobular septal thickening, 3) shrinkage of the secondary pulmonary lobules mainly around the bronchovascular bundles and 4) early type 2 respiratory failure (elevated blood carbon dioxide levels), represents a novel clinical subtype of familial pulmonary fibrosis. Molecular genetic investigation of families revealed a hypomorphic variant in S100A3 and a novel truncating mutation in S100A13, both segregating with the disease in an autosomal recessive manner. Family members that were either heterozygous carriers or wild-type normal for both variants were unaffected. Analysis of patient-derived fibroblasts demonstrated significantly reduced S100A3 and S100A13 expression. Further analysis demonstrated aberrant intracellular calcium homeostasis, mitochondrial dysregulation and differential expression of ECM components. CONCLUSION: Our data demonstrate that digenic inheritance of mutations in S100A3 and S100A13 underlie the pathophysiology of pulmonary fibrosis associated with a significant reduction of both proteins, which suggests a calcium-dependent therapeutic approach for management of the disease.
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Pulmão/patologia , Fibrose Pulmonar/genética , Fibrose Pulmonar/fisiopatologia , Proteínas S100/genética , Adolescente , Criança , Saúde da Família , Feminino , Predisposição Genética para Doença , Heterozigoto , Humanos , Masculino , Mutação , Linhagem , Fibrose Pulmonar/diagnóstico , Arábia SauditaRESUMO
Idiopathic Pleuro-Parenchymal Fibroelsatosis (PPFE) is a rare, progressive and recently recognized subtype of idiopathic interstitial lung disease with no recorded successful treatment other than lung transplant. We report a case of idiopathic pleuroparenchymal fibroelastosis from the Middle East, managed successfully by bilateral lung transplant performed on a 26 year old Saudi male.
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BACKGROUND: To describe the clinical presentations, treatment regimen, and outcomes of Pneumocystis jiroveci pneumonia (PJP) among immunocompromised patients at King Faisal Specialist Hospital and Research Center in Saudi Arabia. MATERIALS AND METHODS: In this retrospective cohort study, patients with a laboratory-confirmed diagnosis of PJP were included. RESULTS: During the study, 42 patients with confirmed PJP were identified. Twenty (48%) patients were HIV-infected, while 22 (52%) were HIV negative. The median T-cell count (CD 4 ) was below 50 cells/mL in HIV patients with PJP at the time of HIV and PJP diagnoses. Graft rejection, cytomegalovirus (CMV) reactivation, and lymphopenia were associated with the development of PJP in transplant recipients; and high-dose steroids for non-transplant patients. The all-cause mortality at 90 days was lower in individuals with HIV-related PJP, compared to those with other predisposing conditions (10% and 32%, respectively; P=0.085). No specific risk factors were independently associated with the increased risk of mortality. CONCLUSION: PJP remains an important cause of morbidity and mortality in immunocompromised patients, with a higher mortality rate reported in non-HIV patients.
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Primary mediastinal synovial sarcomas are exceedingly uncommon tumors. Herein, we present the case of primary mediastinal synovial sarcoma (monophasic spindle cell-shaped variant) fully occupying the right hemithorax in a 37-year-old woman who presented to clinic with a 2-month history of right-sided chest pain and shortness of breath. Although extremely rare, however, synovial sarcoma should be considered in the differential diagnosis of all monophasic and biphasic spindle cell neoplasms of the mediastinum. Despite molecular testing for (t[x; 18] [p11.2; q11.2]) is characteristically positive in 90% of synovial sarcoma cases, it is not routinely done. Histopathological and immunohistochemical analyses can greatly confirm the diagnosis. Optimal surgical resection is the standard of care. Adjuvant therapy (radiotherapy and/or chemotherapy) is indicated in inoperable advanced disease or unachieved surgical tumor-free surgical margins. Prognosis is poor with a 5-year overall survival (OS) rate of 35.7%. Early diagnosis and prompt appropriate management yield better disease-free and OS rates.
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Neoplasias Pulmonares/patologia , Neoplasias do Mediastino/patologia , Sarcoma Sinovial/patologia , Tórax/patologia , Adulto , Feminino , Humanos , Neoplasias Pulmonares/cirurgia , Neoplasias do Mediastino/cirurgia , Prognóstico , Sarcoma Sinovial/cirurgiaRESUMO
Aspergillus endocarditis is a rare infection that occurs most commonly in patients with prior cardiac surgery but cases in post-transplant recipients without prior cardiac surgery have been reported. Diagnosis is often delayed and requires high index of suspicion. We here report a case of Aspergillus endocarditis in solid organ transplant recipient.
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Aspergilose/microbiologia , Aspergillus flavus/isolamento & purificação , Endocardite/microbiologia , Transplante de Rim/efeitos adversos , Transplante de Fígado/efeitos adversos , Aspergilose/diagnóstico por imagem , Aspergilose/patologia , Aspergilose/cirurgia , Ecocardiografia Transesofagiana , Endocardite/diagnóstico por imagem , Endocardite/patologia , Endocardite/cirurgia , Feminino , Rejeição de Enxerto/prevenção & controle , Valvas Cardíacas/microbiologia , Valvas Cardíacas/patologia , Valvas Cardíacas/cirurgia , Humanos , Imunossupressores/efeitos adversos , Pessoa de Meia-IdadeRESUMO
BACKGROUND Primary pericardial tumors have a prevalence of between 6.7% and 12.8% of all tumors arising in the cardiac region. Pericardial schwannoma is a rare entity. It arises from the cardiac plexus and vagus nerve innervating the heart. Most of the reported cases, have presented with benign behavior, however, in rare situations, they can undergo transformation to malignant behavior When comparing the prevalence of cardiac tumors to that of pericardial tumors, the latter is much lower in occurrence. A review of English literature identified six pericardial schwannoma cases. CASE REPORT We present a case of a 30-year-old male patient who presented to our center with the chief complaint of six months of gradually progressive left chest pain. His past medical history (PMH) was positive for panic attacks (for which he was taking beta-blockers), paroxysmal tachycardia, sweating, and irritability. A computed tomography chest scan was done; a differential diagnosis of paraganglioma was suggested. However, histopathological examination confirmed the pericardial mass was a schwannoma. The patient was surgically treated by thoracotomy to resect the lesion. CONCLUSIONS This case adds to the existing limited literature on pericardial schwannoma as the seventh reported case. Neurogenic cardiac tumors; our case marks the second case reported to occur in the subcarinal area near the left atrium.
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Neoplasias Cardíacas/diagnóstico , Neurilemoma/diagnóstico , Adulto , Neoplasias Cardíacas/cirurgia , Humanos , Masculino , Neurilemoma/cirurgia , PericárdioRESUMO
Mesenchymal hamartoma of the chest wall is a well-recognized but extremely rare entity. This entity is believed to be benign with no propensity for invasion or metastasis. Although the lesion manifests with alarming aggressive clinical, radiological, and histological features, it is considered benign and carries an excellent outcome. Therefore it is important to recognize this benign entity to avoid the possible misdiagnosis of malignancy and the unnecessary use of chemotherapy. We present a case of bilateral multifocal mesenchymal hamartomas of the chest wall in a male infant and a literature review of this entity. Our aim is to improve the awareness of this condition and highlight its benign behavior and satisfactory outcome following complete surgical resection.