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2.
J Med Case Rep ; 18(1): 286, 2024 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38907357

RESUMO

BACKGROUND: Due to rarity of duodenal GISTs, clinicians have few information about its clinical features, diagnosis, management and prognosis. CASE REPORT: We report a case of promptly diagnosed duodenal GIST in a 61-year-old Egyptian man presented shocked with severe attack of hematemesis and melena. Upper gastroduodenal endoscopy was done and revealed a large ulcerating bleeding mass at first part of duodenum 4 hemo-clips were applied with good hemostasis. An exploratory laparotomy and distal gastrectomy, duodenectomy and gastrojejunostomy were performed. The morphology of the mass combined with immunohistochemistry was consistent with duodenal gastrointestinal stromal tumours (GISTs) of high risk type. The patient is on amatinib one tablet daily and he was well with no evidence of tumor recurrence. CONCLUSION: despite being rare, emergency presentation with sudden severe, life-threatening hemorrhagic shock duodenal GISTs might be a cause of potentially lethal massive combined upper and lower gastrointestinal bleeding which is the key feature of this rare and challenging tumor.


Assuntos
Neoplasias Duodenais , Hemorragia Gastrointestinal , Tumores do Estroma Gastrointestinal , Choque Hemorrágico , Humanos , Tumores do Estroma Gastrointestinal/complicações , Tumores do Estroma Gastrointestinal/patologia , Tumores do Estroma Gastrointestinal/diagnóstico , Tumores do Estroma Gastrointestinal/cirurgia , Masculino , Pessoa de Meia-Idade , Hemorragia Gastrointestinal/etiologia , Neoplasias Duodenais/complicações , Neoplasias Duodenais/cirurgia , Neoplasias Duodenais/patologia , Choque Hemorrágico/etiologia , Melena/etiologia , Hematemese/etiologia , Gastrectomia
3.
J Investig Med High Impact Case Rep ; 12: 23247096241253341, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38767125

RESUMO

Primary gastric Burkitt's lymphoma is an aggressive non-Hodgkin's lymphoma that has been rarely reported in the literature. The majority of primary gastric lymphomas are diffuse large B-cell lymphomas and mucosa-associated lymphoid tissue (MALT) lymphomas. Patients with primary gastric Burkitt's lymphoma can present with abdominal pain, hematemesis, melena, perforation, and obstruction. Diagnosis is made with a combination of clinical, radiological, and pathological findings. Treatment data are limited due to the limited cases reported. We present a case of a 47-year-old female who presented with diffuse abdominal pain, melena, and coffee-ground emesis that was diagnosed with primary gastric Burkitt's lymphoma following biopsies taken from a gastric ulcerated mass found on upper endoscopy.


Assuntos
Linfoma de Burkitt , Neoplasias Gástricas , Humanos , Feminino , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/patologia , Pessoa de Meia-Idade , Neoplasias Gástricas/patologia , Neoplasias Gástricas/diagnóstico , Dor Abdominal/etiologia , Biópsia , Melena/etiologia , Tomografia Computadorizada por Raios X , Linfoma não Hodgkin
5.
Gan To Kagaku Ryoho ; 51(2): 211-213, 2024 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-38449416

RESUMO

We report 2 cases of portal vein stent placement for malignant portal stenosis due to recurrence of pancreatic cancer with symptoms of portal hypertension. Case 1: The patient was a 68-year-old female. Five years ago, a mass was found around the aorta on a computerized tomography(CT)scan taken after a residual pancreatectomy for pancreatic cancer. It was diagnosed as lymph node recurrence and S-1 therapy was started. As further tumor enlargement led to portal vein compression, venostasis around the ascending jejunum, anemia, and black stools, a portal vein stent was placed. The portal vein blood flow was improved, the collateral vessels disappeared, and the patient no longer experienced anemia or black stool. Case 2: A 75-year-old female patient underwent a subtotal gastric-sparing pancreaticoduodenectomy and combined resection of the portal vein for pancreas head cancer. On a postoperative CT scan taken 6 months later, a mass compressing the portal vein appeared, which was diagnosed as a local recurrence. As thrombocytopenia was observed, a portal vein stent was placed before starting chemotherapy. The portal vein blood flow and the platelet count improved. Portal vein stenting is an effective procedure for malignant portal stenosis, improving portal blood flow and clinical symptoms.


Assuntos
Anemia , Neoplasias Pancreáticas , Feminino , Humanos , Idoso , Veia Porta/cirurgia , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Neoplasias Pancreáticas/complicações , Neoplasias Pancreáticas/cirurgia , Pâncreas , Melena
7.
Trop Doct ; 54(2): 191-192, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38247308

RESUMO

Melaena due to hookworm infestation is a rare clinical presentation. It usually presents with symptoms of iron-deficiency anaemia owing to slow blood loss. Here we present a case of 45-year male who presented with a one-year history of intermittent melena requiring multiple blood transfusions. Preliminary endoscopies at different centres were normal. The presence of hookworm in the duodenum was only detected on repeat upper endoscopy as the cause of blood loss, and treatment with albendazole was successful in curing the patient.


Assuntos
Anemia Ferropriva , Infecções por Uncinaria , Animais , Humanos , Masculino , Melena/etiologia , Ancylostomatoidea , Infecções por Uncinaria/complicações , Infecções por Uncinaria/diagnóstico , Infecções por Uncinaria/tratamento farmacológico , Duodeno
8.
BMJ Case Rep ; 17(1)2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-38171642

RESUMO

Bleeding from a visceral artery pseudoaneurysm (VAPA) is a rare but significant complication of bariatric surgery. Patients may present with gastrointestinal (GI) haemorrhage in the forms of haematemesis, melaena, haematochezia or haemodynamic compromise. Although CT angiogram, endoscopy and laparoscopy form essential parts of diagnostic assessment, small pseudoaneurysms with intermittent bleeding may be overlooked. We report the case of a man in his 40s who presented to the emergency department with massive GI bleeding and subsequent haemodynamic instability, secondary to a pseudoaneurysm from a vascular injury during a recent bariatric procedure. This case highlights the diagnostic challenges of obscure, intermittent bleeding involving the bypassed stomach with unremarkable investigation findings, and aims to raise awareness among clinicians in considering the less common postgastric-bypass complications.


Assuntos
Falso Aneurisma , Masculino , Humanos , Falso Aneurisma/etiologia , Falso Aneurisma/complicações , Hemorragia Gastrointestinal/diagnóstico , Hematemese , Melena/etiologia , Artérias
9.
Medicine (Baltimore) ; 103(1): e36737, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38181268

RESUMO

RATIONALE: Brunner gland adenoma (BGA) is a rare benign duodenal tumor that is an adenomatoid lesion in nature rather than an actual tumor. Patients with different adenoma sizes have various clinical manifestations with nonspecific clinical symptoms. Here, We report a case of BGA with black stool and anemia as the primary manifestations. PATIENT CONCERNS: A young female patient was admitted to the hospital because of black stool and anemia. Endoscopic surgery was performed to a definitive diagnosis, and endoscopic tumor-like lesions were resected. DIAGNOSIS: The patient was diagnosed with duodenal Brunner adenoma and received related treatment. OUTCOMES: After treatment, the patient symptoms improved, and he was discharged. LESSONS: Brunner adenoma of the duodenum is a rare benign duodenum tumor. This report paper describes a case of BGA with black stool and anemia as the primary manifestations, followed by endoscopic resection and treatment. The literature on Brunner adenoma of the duodenum has been analyzed and discussed. Clinicians should pay attention to differentiating the disease based on atypical symptoms.


Assuntos
Adenoma , Anemia , Neoplasias Duodenais , Masculino , Humanos , Feminino , Sangue Oculto , Duodeno/cirurgia , Melena , Neoplasias Duodenais/complicações , Neoplasias Duodenais/diagnóstico , Neoplasias Duodenais/cirurgia , Anemia/etiologia , Adenoma/complicações , Adenoma/diagnóstico , Adenoma/cirurgia
10.
Rev Esp Enferm Dig ; 116(4): 226-227, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37114388

RESUMO

A 65-year-old male complained of persistent melena for 6 days, and displayed anemia symptoms without hematemesis, vomiting, and abdominal distention. He was diagnosed as ruptured aneurysm of aortic sinus Valsalva, and had received coronary artery occlusion 1 month ago. After the operation, he was continually prescribed clopidogrel 75 mg once daily. The laboratory examination showed blood hemoglobin concentration was 60 g/L without other conspicuous abnormality. Unfortunately, neither esophagogastroduodenoscopy (EGD) nor colonoscopy found no obvious bleeding lesions. And abdominal computed tomography angiography (CTA) and enhanced computed tomography (CT) showed no obvious abnormal findings. Moreover, capsule endoscopy revealed small intestinal with mucosal erosion (Figure 1A). After discontinued clopidogrel, blood transfusion, and support therapy, his symptoms was resolved with negative fecal occult blood, continued clopidogrel 75 mg once daily, and uneventfully discharged 1 week later.


Assuntos
Hemorragia Gastrointestinal , Melena , Masculino , Humanos , Idoso , Clopidogrel/uso terapêutico , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/terapia , Hemorragia Gastrointestinal/diagnóstico , Melena/etiologia , Hematemese , Colonoscopia
11.
Nihon Shokakibyo Gakkai Zasshi ; 120(12): 1012-1020, 2023.
Artigo em Japonês | MEDLINE | ID: mdl-38072456

RESUMO

A 73-year-old man underwent pancreatoduodenectomy 5 years previously, and portal vein stenosis was observed immediately after surgery. A collateral vein with varices around the hepaticojejunostomy gradually developed. The patient experienced repeated episodes of melena that required transfusion. Enteroscopy confirmed varices around the hepaticojejunostomy, caused by portal vein stenosis, which was the source of intestinal bleeding. Varices were treated by placing an expandable metallic stent in the stenotic portal vein through a percutaneous transhepatic route. Although the portal vein stenosis was severe, the guidewire was successfully maneuvered into the superior mesenteric vein and stent placement was successful. Subsequently, the collateral vein disappeared and no further melena was observed.


Assuntos
Constrição Patológica , Veia Porta , Idoso , Humanos , Masculino , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Melena/etiologia , Melena/cirurgia , Pancreaticoduodenectomia/efeitos adversos , Veia Porta/cirurgia , Stents , Varizes/cirurgia
12.
J Infect Public Health ; 16(12): 1925-1932, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37866270

RESUMO

BACKGROUND: Recently, a wide range variety of manifestations, including a self­limiting to severe illness, has been increasingly reported in dengue. Few studies attract attention to severe dengue, mainly observed in secondary infection. With this background, this study aims to provide a comprehensive overview to differentiate primary from secondary dengue using serology (IgG) and the possible association of severity of illness in secondary dengue. METHODS: Present retrospective cross-sectional study was conducted at a North Indian tertiary care center from September 2021 to January 2022. Clinical data of confirmed dengue patients from the medicine department were collected and assigned as primary and secondary dengue. RESULTS: Of the 220 dengue patients, 22 (10 %) had secondary dengue infection. Hemorrhagic manifestations were reported in 58/220 (26.4 %) cases while 7/22 (31.8 %) in secondary dengue. Prevalent hemorrhagic manifestations in secondary dengue include purpura (27.3 %), vaginal bleeding (4.5 %), melaena (9.1 %), and epistaxis (4.5 %). In addition, 42 (19.1 %) patients had pancytopenia, and 8 (36.6 %) cases were of secondary dengue. Hepatic dysfunction was noted in 164 (74.5 %) cases. Notably, all secondary dengue cases (22;100 %) had hepatic dysfunction and severe in 9 (40.9 %) cases. In addition, in secondary dengue patients, evidence of plasma leakages such as hypoproteinemia 7 (31.8 %) and ascites (35 %) were statistically more frequent. Overall, two deaths (0.9 %) were reported, and were one in each group. CONCLUSIONS: Many parameters, including hemorrhagic manifestation (melaena), hematological characteristic (pancytopenia), evidence of plasma leakage (hypoproteinemia and ascites), gastrointestinal (GB wall thickening and hepatic dysfunction) and reduction in mean hemoglobin and platelet count were found to be statistically significant in secondary dengue infection. Additionally, early classification of secondary dengue may help to anticipate its severity and allow for early strategic intervention/management to lower morbidity and mortality.


Assuntos
Coinfecção , Dengue , Hipoproteinemia , Pancitopenia , Feminino , Humanos , Dengue/complicações , Dengue/epidemiologia , Estudos Transversais , Coinfecção/complicações , Centros de Atenção Terciária , Melena/complicações , Pancitopenia/complicações , Estudos Retrospectivos , Ascite , Índia/epidemiologia , Hipoproteinemia/complicações
13.
Vet Med Sci ; 9(6): 2576-2585, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37817453

RESUMO

BACKGROUND: Gastrointestinal bleeding is a cause of anaemia in dogs. A reliable, non-invasive biomarker to differentiate gastrointestinal bleeding from other causes of anaemia would be advantageous to direct clinical decisions in anaemic patients. Plasma urea:creatinine ratio is an accepted biomarker of upper gastrointestinal bleeding in human medicine. OBJECTIVES: The objective of this study was to evaluate plasma urea:creatinine ratio as a biomarker of gastrointestinal bleeding in a population of dogs with anaemia. METHODS: This was a prospective cross-sectional study of dogs with anaemia presenting to referral centres for the investigation of anaemia. Cases were categorised as having overt gastrointestinal bleeding (melena on presentation), occult gastrointestinal bleeding (historical and diagnostic findings consistent with gastrointestinal bleeding without melena at presentation) or anaemia of other cause (confident diagnosis other than gastrointestinal bleeding reached, normal diagnostic imaging of gastrointestinal tract). Urea:creatinine ratio at presentation was calculated by dividing urea (mg/dL) by creatinine (mg/dL). RESULTS: Ninety-five dogs were included. Plasma urea:creatinine ratio was not significantly different between dogs with overt or occult gastrointestinal bleeding or those with anaemia of other cause (median urea:creatinine ratio 25.8, 20.7 and 22.5, respectively). No significant difference in urea:creatinine ratio was found between dogs with upper and lower gastrointestinal bleeding (median urea:creatinine ratio 19.4 and 24.6, respectively). CONCLUSIONS: Plasma urea:creatinine ratio was not helpful in differentiating between dogs with anaemia resulting from gastrointestinal bleeding (overt or occult) and those with other causes of anaemia.


Assuntos
Anemia , Doenças do Cão , Humanos , Cães , Animais , Melena/complicações , Melena/veterinária , Creatinina , Estudos Prospectivos , Estudos Transversais , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/veterinária , Ureia , Anemia/diagnóstico , Anemia/veterinária , Anemia/complicações , Biomarcadores , Doenças do Cão/diagnóstico
14.
BMC Emerg Med ; 23(1): 107, 2023 09 19.
Artigo em Inglês | MEDLINE | ID: mdl-37726688

RESUMO

BACKGROUND AND OBJECTIVE: Bleeding from the upper gastrointestinal (GI) tract is one of the common medical emergencies. In this study, we assessed patients' socio-demographic and clinical characteristics and the association of clinical characteristics with treatment outcomes among patients with suspected upper gastrointestinal bleed (UGIB) presenting to the emergency department (ED). At present, there is a scarcity of data on UGIB in Northern part of India. MATERIAL AND METHOD: The study was a single-center, prospective observational study conducted at an urban tertiary care center. Consecutive patients with suspected UGIB were enrolled in the study from August 2020 to February 2022. A detailed history was obtained, including demographic data such as age and sex, presenting complaints, history of presenting illness, history related to co-morbidities, addiction, and drug history. Pre-endoscopic Rockall and Glasgow-Blatchford Score were calculated for each patient. The patients were subsequently followed up till discharge from the hospital. The final outcomes with regard to mortality, need for blood transfusion, length of emergency department stay, and discharge were noted. RESULT: 141 patients were included in the study. The mean age of the patients with suspected UGIB was 48 ± 14 years. 115 (81.6%) patients were male. The most common co-morbidity was chronic liver disease (40;28.4%). The most frequent presenting complaint in this study was hematemesis (96; 68.1%), followed by melena (76;53.9%). The mean (Standard Deviation, SD) of the Rockall Score was 2.46 ± 1.75. The mean (SD) of the Glasgow Blatchford Score was 12.46 ± 3.15 in patients with UGIB. CONCLUSION: In our study, hematemesis was the most prevalent symptom of suspected UGIB, followed by melena. Portal hypertension was the most common cause of UGIB. Most frequent comorbidities in patients suspected of UGIB were alcohol intake, Nonsteriodal Antiinflammatory Drugs (NSAIDs) abuse, and co-morbidities such as underlying chronic liver disease, hypertension, and diabetes. Early endoscopy can be of great utility to reduce morbidity and mortality.


Assuntos
Hematemese , Melena , Humanos , Adulto , Masculino , Pessoa de Meia-Idade , Feminino , Hemorragia Gastrointestinal/epidemiologia , Hemorragia Gastrointestinal/etiologia , Consumo de Bebidas Alcoólicas , Serviço Hospitalar de Emergência
15.
Artigo em Alemão | MEDLINE | ID: mdl-37567183

RESUMO

A 9-year-old male Malinois was presented for further workup of acute melena, hematemesis and chronic weight loss for a duration of one month. Clinically, the patient presented with a mildly reduced general condition. Blood tests revealed mild non-regenerative anemia as well as a mild elevation of alanine aminotransferase (ALT). Ultrasonography showed signs of an early mucocele. Treatment with gastroprotectants failed to lead to clinical improvement and the dog developed progressive anemia. Gastroduodenoscopy was unremarkable. Due to persistent clinical signs, exploratory laparotomy was performed. An ulcerated bleeding mass was detected at the gallbladder neck. Histopathological examination led to the diagnosis of a neuroendocrine carcinoma. There was no evidence of a mucocele on histopathology. Melena and hematemesis subsided postoperatively and 13 months after cholecystectomy, the dog remains without clinical signs. Neuroendocrine carcinomas of the gallbladder should be considered as a rare cause of melena and hematemesis in dogs.


Assuntos
Carcinoma Neuroendócrino , Doenças do Cão , Mucocele , Masculino , Cães , Animais , Hematemese/veterinária , Hematemese/complicações , Melena/diagnóstico , Melena/etiologia , Melena/veterinária , Vesícula Biliar , Mucocele/veterinária , Carcinoma Neuroendócrino/complicações , Carcinoma Neuroendócrino/diagnóstico , Carcinoma Neuroendócrino/cirurgia , Carcinoma Neuroendócrino/veterinária , Doenças do Cão/diagnóstico por imagem , Doenças do Cão/cirurgia
16.
BMJ Case Rep ; 16(8)2023 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-37607766

RESUMO

Duodeno-duodenal intussusception (DDI) is the type of intestinal intussusception in which a segment of the duodenum invaginates into the next part of the duodenum. We present a case of a male patient in his 50s presenting with right upper abdominal pain with multiple episodes of vomiting and a history of melena for 1 month. Imaging studies showed the presence of DDI without apparent growth. The patient underwent upper gastrointestinal endoscopy, which showed a doubtful growth in the duodenum, and the biopsy, was suggestive of adenocarcinoma. The patient underwent Whipple's procedure, and postoperative histology was diagnostic of Brunner's gland adenoma. The patient improved well without any complications.


Assuntos
Adenocarcinoma , Intussuscepção , Humanos , Masculino , Intussuscepção/diagnóstico por imagem , Intussuscepção/etiologia , Intussuscepção/cirurgia , Hemorragia Gastrointestinal/diagnóstico por imagem , Hemorragia Gastrointestinal/etiologia , Melena , Dor Abdominal , Adenocarcinoma/diagnóstico , Adenocarcinoma/diagnóstico por imagem
17.
Acta Gastroenterol Belg ; 86(2): 382, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37428177

RESUMO

A 50-year-old woman presented to the emergency department with several episodes of melena in the last week. The patient was not hemodynamically compromised and was conservatively managed. Urgent upper gastrointestinal endoscopy and colonoscopy showed no source of bleeding. Abdominal CT demonstrated three mural nodular lesions up to 2cm in the mid jejunum with hypervascular characteristics in arterial phase without active bleeding in venous phase. Angiography (Figure 1A) revealed three tumours with neo-angiogenesis and no active bleeding. Each lesion was stained with methylene blue and followed by embolization with coils. Exploratory laparotomy (Figure 1B) showed the three nodules marked by angiography. Intestinal resection of the affected segment was performed. Histopathological study proved the diagnosis of suspicion (Figure 2).


Assuntos
Hemorragia Gastrointestinal , Melena , Feminino , Humanos , Pessoa de Meia-Idade , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/terapia , Melena/diagnóstico , Melena/etiologia , Colonoscopia , Angiografia , Abdome
18.
BMC Urol ; 23(1): 102, 2023 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-37270552

RESUMO

BACKGROUND: Pure testicular choriocarcinoma is a rare type of non-seminomatous germ cell tumor extremely poor prognostic with the tendency to bleed at the metastatic site. At the time of the diagnosis, 70% of patients have metastatic lesions. Depending on the site of the metastasis, symptoms vary. Gastrointestinal involvement is seen in less than 5% of cases, mostly in the duodenum. CASE PRESENTATION: We present a 47 years old male with testicular choriocarcinoma involving the jejunum, lung, liver, and kidney presenting with acute abdominal pain, melena, and dyspnea with some paraneoplastic symptoms. The patient had increased, severe and constant pain in the right lower quadrant for the previous four days. Additionally, he was complaining of nausea, vomiting, anorexia, and a history of melena for the last 10 days. Dyspnea on exertion, hemoptysis, and dry cough were the symptoms he was suffering from, for almost one year. The patient's general appearance was pale, ill, and thin with 10 kg of weight loss during the last some months. The computed tomography (CT) scan reported multiple metastatic lesions in both liver lobes and the left kidney. Pathologic study of the samples of small bowel lesions showed metastatic choriocarcinoma. Following the patient had been referred to an oncologist to start the chemotherapy regime. Finally, the patient has expired after 40 days of his first admission. CONCLUSIONS: Testicular choriocarcinoma is a rare but fatal malignancy among young men. Gastrointestinal metastases are infrequent involvement represented by melena and acute abdominal pain, obstruction, and mass. Physicians should consider it as a differential diagnosis for acute abdomen and gastrointestinal bleeding causation.


Assuntos
Coriocarcinoma , Neoplasias Gastrointestinais , Neoplasias Testiculares , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Melena , Neoplasias Testiculares/complicações , Neoplasias Testiculares/diagnóstico , Coriocarcinoma/complicações , Coriocarcinoma/diagnóstico , Coriocarcinoma/tratamento farmacológico , Dor Abdominal
20.
J Small Anim Pract ; 64(7): 485-489, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37185981

RESUMO

A juvenile dog referred with a 1-month history of persistent melena and severe anaemia, was diagnosed with a jejunal arteriovenous malformation, and multiple acquired extrahepatic portosystemic shunts. A midline coeliotomy was performed, the jejunal arteriovenous malformation was localised intraoperatively and was successfully removed via an enterectomy. Histopathology confirmed a true arteriovenous malformation. Despite the initial improvement, the patient developed seizure episodes secondary to hepatic encephalopathy 8 months after surgery. Fifteen months after surgery, the owner opted for euthanasia due to the ongoing seizure episodes. Post-mortem histologic examination of the liver showed features consistent with portal vein hypoplasia. A congenital arteriovenous malformation should be considered as a differential diagnosis in juvenile patients with a chronic history of haemorrhage from the gastrointestinal tract. In addition, acquired portosystemic shunts may occur in patients with portal vein hypoplasia and jejunal arteriovenous malformations.


Assuntos
Malformações Arteriovenosas , Doenças do Cão , Derivação Portossistêmica Transjugular Intra-Hepática , Malformações Vasculares , Cães , Animais , Veia Porta/anormalidades , Melena/patologia , Melena/cirurgia , Melena/veterinária , Derivação Portossistêmica Transjugular Intra-Hepática/veterinária , Fígado/patologia , Malformações Arteriovenosas/complicações , Malformações Arteriovenosas/cirurgia , Malformações Arteriovenosas/veterinária , Malformações Vasculares/patologia , Malformações Vasculares/veterinária , Doenças do Cão/diagnóstico , Doenças do Cão/etiologia , Doenças do Cão/cirurgia
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