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1.
Am J Dermatopathol ; 46(5): 316-319, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38574049

RESUMO

ABSTRACT: Melanoma with lymphatic invasion has been associated with increased risk of metastasis, but the mechanisms and clinical implications are poorly understood. Although current reports have documented angiotropic spread of melanoma and suggest lymphatic spread of melanoma to increase the likelihood of metastasis, to our knowledge, lymphangitic metastatic melanoma resembling cutaneous carcinomatosis or presenting with facial hyperpigmentation has not been described. In this case report, we describe extensive cutaneous intralymphatic spread of melanoma, or lymphangitic melanomatosis, producing macular skin pigmentation in a 66-year-old man.


Assuntos
Linfangite , Melanoma , Idoso , Humanos , Masculino , Linfangite/complicações , Melanoma/patologia
2.
Res Vet Sci ; 161: 80-85, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37327692

RESUMO

Epizootic lymphangitis is a contagious, chronic and overwhelming disease of equids, characterized by chronic discharging skin nodules. This study was aimed to investigate the prevalence and associated risk factors of epizootic lymphangitis in equines at Nagele Arsi town, southeastern Ethiopia. A cross-sectional study using a random sampling technique was employed from December 2021 to June 2022 via clinical and microscopic examinations of the lesions. The overall prevalence of epizootic lymphangitis was 4.37% with a prevalence of 6.69%, 0.72%, and 0% in horses, donkeys, and mules, respectively. The sex, species, harness type, season, and body condition scores of equids have shown statistically significant differences (p < 0.05) with the prevalence of epizootic lymphangitis. Macroscopically, the lesions revealed varying degrees of nodule to ulcer on the sternum, limbs, face, and cervical region of the equine. Upon giemsa stain, fungal hyphae with a halo (unstained capsule-like) structure were observed. Histologically, pyogranulomatous inflammation with fibroplasia was appreciated. In conclusion, epizootic lymphangitis was rampant in the study area. This requires a detailed investigation incorporating a large sample size using fungal culture and other molecular techniques including PCR.


Assuntos
Histoplasmose , Doenças dos Cavalos , Linfangite , Cavalos , Animais , Linfangite/epidemiologia , Linfangite/veterinária , Linfangite/complicações , Etiópia/epidemiologia , Prevalência , Estudos Transversais , Doenças dos Cavalos/etiologia , Equidae , Histoplasmose/epidemiologia , Histoplasmose/microbiologia , Histoplasmose/veterinária , Fatores de Risco
3.
J Reconstr Microsurg ; 39(3): 214-220, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36162422

RESUMO

BACKGROUND: Postmastectomy breast cancer lymphedema poses an important health threat. Historically, physical therapy was the exclusive treatment option. More recently, lymphedema surgery has revolutionized care. As a first-in-kind, multicenter report, the postmastectomy breast cancer patients' risk factors associated with postlymphedema ablative surgical outcomes were documented. METHODS: Using the New York Statewide Planning and Research Cooperative System database from 2010 to 2018, multivariable models identified the postmastectomy breast cancer lymphedema surgical patients' characteristics associated with major adverse outcomes and mortality. RESULTS: Of 65,543 postmastectomy breast cancer patients, 1,052 lymphedema surgical procedures were performed including 393 (37.4%) direct excisions and 659 (63.6%) liposuctions. Direct excision and liposuction surgical patients had median ages of 58 and 52 years, respectfully (p < 0.001). Although a 30-day operative mortality was rare (0.3%, all direct excisions), major adverse outcomes occurred in 154 patients (28.5% direct excision; 6.4% liposuction; p < 0.0001). Multivariable clinical outcomes model identified that patients with higher Elixhauser's score, renal disease, emergent admissions, and direct excision surgery had higher incidences of adverse outcomes (all p < 0.01). For those patients with 30-day readmissions (n = 60), they were more likely to have undergone direct excision versus liposuction (12.5 vs. 1.7%; p < 0.0001). The important risk factors predictive of future cellulitis/lymphangitis development included diabetes mellitus, Medicaid insurance, renal disease, prior cellulitis/lymphangitis, chronic obstructive pulmonary disease (COPD), and chronic steroid use (all p < 0.01). CONCLUSION: Lymphedema surgery carries a favorable risk profile, but better understanding the "high-risk" patients is critical. As this new era of lymphedema surgery progresses, evaluating the characteristics for adverse postoperative outcomes is an important step in our evolution of knowledge.


Assuntos
Linfedema Relacionado a Câncer de Mama , Neoplasias da Mama , Linfangite , Linfedema , Humanos , Feminino , Neoplasias da Mama/cirurgia , Linfedema Relacionado a Câncer de Mama/etiologia , Mastectomia , Linfangite/complicações , Linfangite/cirurgia , Celulite (Flegmão)/cirurgia , Linfedema/cirurgia , Fatores de Risco
4.
Skinmed ; 17(2): 128-129, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31145067

RESUMO

A 34-year-old man presented with a painless lesion of the glans present for more than 4 years. The patient became HIV-positive in 2011, and he has been treated with tenofovir, emtricitabine, and efavirenz. A CD4 count performed 4 months prior was 570 cells/mL3; syphilis, hepatitis B, and hepatitis C serologies performed on the same date were non-reactive.


Assuntos
Linfangioma/etiologia , Linfangite/complicações , Vasos Linfáticos/patologia , Neoplasias Penianas/etiologia , Adulto , Soropositividade para HIV/complicações , Soropositividade para HIV/tratamento farmacológico , Humanos , Masculino , Esclerose/complicações
5.
BMJ Case Rep ; 20182018 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-30413446

RESUMO

A 70-year-old woman with lung metastases from a breast cancer presented with worsening cough and dyspnoea. She recently had a pleurodesis for a malignant pleural effusion. Chest CT scans demonstrated various radiological changes leading to diagnostic challenges. Differential diagnoses included empyema, pleural disease progression, pulmonary oedema, pneumonitis, lymphangitis and atypical infections. She deteriorated despite a multimodality treatment strategy. Postmortem examination confirmed that lung changes were consistent with a bronchoalveolar carcinoma unrelated to the known metastatic breast cancer. The eventual knowledge of this diagnosis was reassuring to the treating medical team and a comfort to the relatives who witnessed the lack of response to standard treatment.


Assuntos
Adenocarcinoma Bronquioloalveolar/secundário , Neoplasias da Mama/patologia , Dispneia/etiologia , Neoplasias Pulmonares/secundário , Segunda Neoplasia Primária/complicações , Adenocarcinoma Bronquioloalveolar/complicações , Adenocarcinoma Bronquioloalveolar/diagnóstico , Idoso , Autopsia , Diagnóstico Diferencial , Evolução Fatal , Feminino , Humanos , Pulmão/diagnóstico por imagem , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico , Linfangite/complicações , Linfangite/diagnóstico por imagem , Segunda Neoplasia Primária/diagnóstico , Derrame Pleural Maligno/complicações , Derrame Pleural Maligno/diagnóstico por imagem , Tomografia Computadorizada por Raios X
7.
J Epidemiol Glob Health ; 8(3-4): 176-182, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30864760

RESUMO

Episodes of adenolymphangitis (ADL) are a recurrent clinical aspect of lymphatic filariasis (LF) and a risk factor for progression of lymphedema. Inter-digital entry lesions, often found on the web spaces between the toes of those suffering from lymphedema, have been shown to contribute to the occurrence of ADL episodes. Use of antifungal cream on lesions is often promoted as a critical component of lymphedema management. Our objective was to estimate the observed effect of antifungal cream use on ADL episodes according to treatment regimen among a cohort of lymphedema patients enrolled in a morbidity management program. We estimated this effect using marginal structural models for time varying confounding. In this longitudinal study, we estimate that for every one-unit increase in the number of times one was compliant to cream use through 12 months, there was a 23% (RR = 0.77 (0.62, 0.96)) decrease in the number of ADL episodes at 18 months, however the RR's were not statistically significant at other study time points. Traditionally adjusted models produced a non-significant RR closer to the null at all time points. This is the first study to estimate the effect of a regimen of antifungal cream on the frequency of ADL episodes. This study also highlights the importance of the consideration and proper handling of time-varying confounders in longitudinal observational studies.


Assuntos
Antifúngicos/uso terapêutico , Filariose Linfática , Linfangite , Linfedema , Administração dos Cuidados ao Paciente , Fatores de Confusão Epidemiológicos , Progressão da Doença , Filariose Linfática/complicações , Filariose Linfática/diagnóstico , Filariose Linfática/tratamento farmacológico , Filariose Linfática/epidemiologia , Feminino , Humanos , Estudos Longitudinais , Linfangite/complicações , Linfangite/diagnóstico , Linfangite/tratamento farmacológico , Linfangite/epidemiologia , Linfedema/diagnóstico , Linfedema/fisiopatologia , Linfedema/terapia , Masculino , Pessoa de Meia-Idade , Administração dos Cuidados ao Paciente/métodos , Administração dos Cuidados ao Paciente/organização & administração , Administração dos Cuidados ao Paciente/estatística & dados numéricos , Creme para a Pele , Fatores de Tempo , Estados Unidos/epidemiologia
8.
Rev. cuba. angiol. cir. vasc ; 17(2): 150-160, jul.-dic. 2016.
Artigo em Espanhol | LILACS, CUMED | ID: lil-783756

RESUMO

El sistema inmune es el mecanismo de resistencia del organismo ante las infecciones. El sistema linfático juega un importante papel en el control fisiológico del fluido tisular y en la iniciación de la respuesta inmune. Nos proponemos describir la función de los componentes celulares del sistema inmune en las linfopatías de miembros inferiores no asociadas a cánceres tales como el linfedema y la linfangitis.Se revisaron las bases de datos PubMed, MedLine, SciELO, Clinical Key, Liliacs, Ebsco y artículos científicos publicados en revistas cubanas entre 2000-2015. Los estudios recientes muestran que el crecimiento de nuevos vasos linfáticos es una característica distintiva de las reacciones inflamatorias agudas y crónicas que caracterizan a las linfopatías, mediado por un incremento en el drenaje del fluido fuera del vaso y de células inflamatorias, así como de la modulación de las respuestas inmunes. Es apremiante continuar investigando, específicamente en lo concerniente al comportamiento de la inmunidad humoral y celular en los pacientes que padecen de linfedema o linfangitis, pues no se encontraron trabajos que aborden de manera específica la posible relación entre ambos. Se sugiere que las subpoblaciones de células T son un componente crítico en la respuesta celular inflamatoria crónica y subaguda en las linfopatías. La comprensión de la función reguladora del fluido linfático en la respuesta inflamatoria puede dar un importante paso en el desarrollo de tratamientos que puedan bloquear el inicio o la progresión de las consecuencias anómalas de las lesiones linfáticas(AU)


The immune system is the body´s mechanism of resistance to infections. The lymph system plays an important role in the physiological control of the tissue fluid and in the onset of the immune response. We intended to describe the function of the cell components of the immune system in the cancer-unrelated lymphopathies of the lower limbs such as lymphedema and lymphangitis. To this end, Pubmed, Medline, Scielo, Clinical Key, Liliacs, Ebsco and scientific articles published in Cuban medical journals from 2000 to 2015 were reviewed. The recent studies show that the growth of new lymphatic vessels is a distinctive characteristic of the acute and chronic inflammatory reactions of lymphopathies, mediated by increase of the fluid drainage outside the vessel and of inflammatory cells as well as the immune response modulations. It is urgent to continue studying this topic, mainly the behavior of the humoral and cell immunity in patients suffering from lymphedema or lymphangitis, since no research papers dealing with the possible relation between both aspects were found. It is suggested that the T-cell subpopulations are a key component of the chronic and sub-acute inflammatory response in lymphopaties. Hence, understanding of the regulating function of the lymph fluid in the inflammatory response may represent an important step in the development of therapies that might block the onset or progression of the anomalous consequences of lymphatic injures(AU)


Assuntos
Humanos , Extremidade Inferior , Sistema Imunitário/fisiopatologia , Linfangite/complicações , Linfedema/complicações
9.
An Bras Dermatol ; 91(3): 384-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27438214

RESUMO

The authors report aspects of paracoccidioidomycosis, acute-subacute clinical form, juvenile type, in a 19-year-old female patient. Paracoccidioidomycosis, juvenile type, classically occurs in young patients, both sexes, with lymphoma-like aspects as initial presentation. However, following the natural history of the disease the lymph nodes assume patterns of infectious disease, as an abscess and fistulae. Systemic dissemination of the disease can occur and lethality and morbidity are significant in this clinical presentation.


Assuntos
Dermatomicoses/diagnóstico , Paracoccidioidomicose/diagnóstico , Doença Aguda , Dermatomicoses/microbiologia , Feminino , Humanos , Linfangite/complicações , Pescoço , Paracoccidioidomicose/complicações , Fotografação , Adulto Jovem
10.
An. bras. dermatol ; 91(3): 384-386, graf
Artigo em Inglês | LILACS | ID: lil-787305

RESUMO

Abstract: The authors report aspects of paracoccidioidomycosis, acute-subacute clinical form, juvenile type, in a 19-year-old female patient. Paracoccidioidomycosis, juvenile type, classically occurs in young patients, both sexes, with lymphoma-like aspects as initial presentation. However, following the natural history of the disease the lymph nodes assume patterns of infectious disease, as an abscess and fistulae. Systemic dissemination of the disease can occur and lethality and morbidity are significant in this clinical presentation.


Assuntos
Humanos , Feminino , Adulto Jovem , Paracoccidioidomicose/diagnóstico , Dermatomicoses/diagnóstico , Paracoccidioidomicose/complicações , Doença Aguda , Dermatomicoses/microbiologia , Fotografia , Linfangite/complicações , Pescoço
11.
Lymphat Res Biol ; 14(1): 2-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26982711

RESUMO

BACKGROUND: Acute dermatolymphangioadenitis (ADLA) is a risk factor for increasing of edema and worsening severity. Reducing ADLA frequency is an important objective of lymphedema management because ADLA episodes are strongly associated with poor quality of life. Lymphedema changes dermal and subcutaneous structure, favoring ADLA; ADLA recurrence may be caused by structural change of the dermis. However, the structure of the skin following ADLA episodes has not been studied in depth. The aim of this study was to examine changes in the skin after episodes of ADLA in breast cancer-related lymphedema (BCRL) using histogram analysis of ultrasonography findings. METHODS AND RESULTS: This was a case-control study with matching for the duration of lymphedema. We compared 10 limbs (5 BCRL patients, Cases) with a history of ADLA and 14 limbs (7 BCRL patients, Controls) without. Ultrasonography was performed using a 20-MHz probe, and measurements were made at a site 10 cm proximal to the ulnar styloid process. We compared "skewness" of the images in the dermis from the histogram analysis. This study was approved by the Ethics Committee of Kanazawa University. Skewness was significantly different between the affected and unaffected limbs (p = 0.02). Cases showed a positive value (median 0.74, range -0.18 to 1.26), whereas Controls showed a negative value (median -0.21, range -0.45 to 0.31). CONCLUSIONS: Episodes of ADLA changed the distribution of echogenicity on imaging, which indicates a change in the collagen fibers in the dermis. These findings might contribute to improving the management of lymphedema and prevention of recurrent ADLA.


Assuntos
Linfedema Relacionado a Câncer de Mama/diagnóstico por imagem , Linfangite/diagnóstico por imagem , Dermatopatias/diagnóstico por imagem , Pele/patologia , Ultrassonografia/métodos , Doença Aguda , Idoso , Idoso de 80 Anos ou mais , Linfedema Relacionado a Câncer de Mama/complicações , Linfedema Relacionado a Câncer de Mama/patologia , Estudos de Casos e Controles , Colágeno/metabolismo , Feminino , Humanos , Linfangite/complicações , Pessoa de Meia-Idade , Pele/metabolismo , Dermatopatias/complicações , Extremidade Superior/patologia
12.
Int J Clin Exp Pathol ; 6(10): 2263-6, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24133609

RESUMO

Metastatic Crohn's disease (CD) is an extremely rare extragastrointestinal manifestation of CD, and is characterized histopathologically by the presence of non-caseating granulomatous inflammation. Granulomatous vasculitis and lymphangitis have rarely been documented in metastatic CD. Herein, we report the first documented case of metastatic CD accompanied by both granulomatous vasculitis and lymphangitis in the vulva. A 35-year-old Japanese female with CD presented with multiple small nodules in her vulva. Biopsy was performed under a clinical diagnosis of genital warts. A histopathological study revealed marked lymphangiectasia in the papillary dermis. Within the dilated lymphatics, lymphocytes and aggregates of macrophages were present, which are typical features of granulomatous lymphangitis. Tiny non-caseating granulomas and granulomatous vasculitis were also observed. Accordingly, a diagnosis of metastatic CD accompanied by both granulomatous vasculitis and lymphangitis was made. The occurrence of cutaneous lesions in patients with CD is well known. Albeit extremely rare, lymphangiectasia has been reported in the vulva of CD patients that clinically mimicked viral warts, as in the present case. The diagnosis of metastatic CD in the present case was not difficult because characteristic histopathological features were present, and a clinical history of CD was available. However, a few cases of genital swelling associated with granulomatous inflammation prior to a diagnosis of gastrointestinal CD have been documented. Therefore, granulomatous vasculitis and lymphangitis in the external genitals should be considered as potential indication of metastatic CD even in cases without a history of gastrointestinal CD.


Assuntos
Doença de Crohn/complicações , Linfangite/complicações , Vasculite/complicações , Doenças da Vulva/complicações , Adulto , Doença de Crohn/patologia , Feminino , Humanos , Linfangite/patologia , Vasculite/patologia , Doenças da Vulva/patologia
13.
BMJ Case Rep ; 20132013 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-23761617

RESUMO

A 70-year-old woman with a recent diagnosis of dermatomyositis (DM) presented to the dermatology department for study of a probably paraneoplastic syndrome. On examination, we observed discrete, indurated, reddish, painful plaques and nodules on her abdomen and both thighs. A cutaneous biopsy from an abdominal nodule, performed as part of the paraneoplastic workup, was suggestive of cutaneous lymphangitis carcinomatosa, secondary to unknown malignancy. An extensive investigation to locate the site of the primary tumour revealed no specific findings. A course of palliative chemotherapy with cisplatin and 5-fluorouracil was then given, but the patient's condition deteriorated and 6 months after her initial observation the patient died. We describe this case because, to our knowledge, the association between DM and cutaneous lymphangitis carcinomatosa has not been described yet in the literature and to highlight that, DM can be a rapidly lethal disease.


Assuntos
Dermatomiosite/complicações , Linfangite/complicações , Neoplasias Cutâneas/complicações , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cisplatino/administração & dosagem , Dermatomiosite/diagnóstico , Evolução Fatal , Feminino , Fluoruracila/administração & dosagem , Humanos , Linfangite/diagnóstico , Cuidados Paliativos , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/tratamento farmacológico
15.
Int J Surg Pathol ; 20(5): 515-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22108500

RESUMO

Eccrine porocarcinoma is a potentially fatal form of sweat gland carcinoma, due to its propensity to metastasize through lymph vessels. The authors report the case of a 69-year-old female who presented with swelling of the right leg and an ulcerated lesion of the right great toe. The initial histologic diagnosis was invasive squamous cell carcinoma. On follow-up, the patient developed lymphangitic tumor spread in the right leg, associated with right inguinal lymphadenopathy and lesions in vulva and flank. Reevaluation of the toe lesion led to a revised diagnosis of eccrine porocarcinoma. The patient also had 2 basal cell carcinomas of the multicentric/superficial type in the skin overlying the left breast. Past history included chronic ingestion of liquore arsenic (Fowler's solution) in early adulthood as treatment for dermatitis herpetiformis.


Assuntos
Intoxicação por Arsênico/etiologia , Arsenitos/efeitos adversos , Porocarcinoma Écrino/secundário , Linfangite/patologia , Compostos de Potássio/efeitos adversos , Neoplasias das Glândulas Sudoríparas/patologia , Idoso , Arsenitos/uso terapêutico , Carcinógenos , Carcinoma Basocelular/complicações , Carcinoma Basocelular/etiologia , Carcinoma Basocelular/patologia , Carcinoma de Células Escamosas/diagnóstico , Diagnóstico Diferencial , Porocarcinoma Écrino/complicações , Porocarcinoma Écrino/etiologia , Feminino , Humanos , Ceratite Herpética/tratamento farmacológico , Linfonodos/patologia , Linfangite/complicações , Linfangite/etiologia , Neoplasias Primárias Múltiplas , Compostos de Potássio/uso terapêutico , Neoplasias Cutâneas/complicações , Neoplasias Cutâneas/etiologia , Neoplasias Cutâneas/patologia , Neoplasias das Glândulas Sudoríparas/complicações , Neoplasias das Glândulas Sudoríparas/etiologia
17.
Nihon Kokyuki Gakkai Zasshi ; 49(8): 577-82, 2011 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-21894772

RESUMO

We report a case of pulmonary carcinomatous lymphangitis and multiple pulmonary infarctions from gastric cancer. A 58-year-old housewife presented with a complaint of a worsening cough over the previous 6 weeks. Chest radiography and CT scans revealed infiltration and diffuse ground-glass opacities in both lung fields, and she was hospitalized for further examination. No specific findings were found upon screening examination, including bronchoscopy with bronchoalveolar lavage (BAL). However, a CT scan showed mediastinal, hilar and paraaortic lymph node swelling, and therefore we suspected the presence of a malignant tumor. On the 11th hospital day, she suddenly developed severe hypoxia and went into cardiogenic shock. Although there was no sign of a filling defect in the vessels on CT with an intravenous contrast, we diagnosed pulmonary thromboembolism based on other examination findings and began thrombolysis and anticoagulant therapy. Treatment with heparin and urokinase did not improve her condition, and she died on the 14th hospital day. The autopsy findings revealed widespread gastric cancer with pulmonary lymphangitis carcinomatosa and thrombus formation in arterioles throughout the pulmonary lobes: 'Trousseau syndrome'.


Assuntos
Neoplasias Pulmonares/secundário , Linfangite/complicações , Embolia Pulmonar/patologia , Infarto Pulmonar/complicações , Neoplasias Gástricas/patologia , Autopsia , Feminino , Humanos , Pessoa de Meia-Idade
18.
Intern Med ; 50(12): 1339-43, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21673473

RESUMO

Infection of Scedosporium apiospermum is very rare but is now emerging as an important cause of both localized and disseminated infections in immunocompromised patients. A 62-year-old woman, who had undergone steroid therapy for refractory idiopathic thrombocytopenic purpura and had a history of diffuse large B cell lymphoma, developed a deep skin ulcer complicated with lymphangitis. After culture study demonstrated the presence of S. apiospermum, voriconazole (VRCZ) was administered and prompt improvement was observed. Because it is difficult to distinguish S. apiospermum from Aspergillus by histopathology and S. apiospermum is resistant to amphotericin B, VRCZ should be selected as the first choice of antifungal agent when mold is considered to be the causative organism.


Assuntos
Micetoma/complicações , Púrpura Trombocitopênica Idiopática/complicações , Scedosporium , Antifúngicos/uso terapêutico , Feminino , Humanos , Hospedeiro Imunocomprometido , Linfangite/complicações , Linfoma Difuso de Grandes Células B/complicações , Pessoa de Meia-Idade , Micetoma/diagnóstico , Micetoma/microbiologia , Pirimidinas/uso terapêutico , Scedosporium/isolamento & purificação , Scedosporium/patogenicidade , Triazóis/uso terapêutico , Voriconazol
20.
Curr Opin Gastroenterol ; 27(4): 335-41, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21543977

RESUMO

PURPOSE OF REVIEW: Intestinal lymph containing interstitial fluid, proteins, immune cells, and digested lipids is actively transported back to the blood stream thanks to rhythmical contractions of the mesenteric lymphatic vessels. During this process, lymph flows through several lymph nodes, allowing antigens to be sampled by the immune system. Abnormalities in lymphatic drainage have been noted in the original descriptions of Crohn's disease, but essentially ignored since. The lymphatic system is re-emerging as a critical player in inflammatory and immune processes and the purpose of this review is to present and discuss new concepts related to the involvement of the lymphatic system in the development of inflammatory bowel diseases (IBDs) and more specifically Crohn's disease. RECENT FINDINGS: Recent studies reporting lymphangitis, lymphangiogenesis, bacterial infiltration and lymph node infection, immune cell trafficking, and fat-wrapping in Crohn's disease suggest altered lymph drainage and lymphatic pumping, implicating the lymphatic system as a likely player in inflammatory disorders and IBDs. SUMMARY: Improved knowledge and appreciation of the roles that the lymphatic system plays in immune cell trafficking, infection, fat transport, distribution and metabolism and, of course, edema resolution is necessary to better understand the pathogenesis of chronic inflammatory conditions such as Crohn's disease and may provide the basis for new therapeutic strategies.


Assuntos
Doença de Crohn/imunologia , Linfangite/complicações , Sistema Linfático/fisiopatologia , Humanos , Linfangiogênese/fisiologia , Sistema Linfático/imunologia , Sistema Linfático/microbiologia
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