• Tuberculosis and Respiratory Diseases
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• v.45 no.4
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• pp.896-901
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• 1998

Pulmonary arteriovenous malformation(PAVM) is an uncommon congenital anomaly. As pulmonary arteriovenous malformation is a direct communication between the branches of pulmonary artery and vein which originated from the malformation of capillary development, major disturbances in gas exchange can result. This malformation results in the several symptoms such as dyspnea, hemopyssis, cyanosis, and severe neurologic complaints. However, the most of patients are usually asymptomatic. Selective pulmonary angiography is well known the helpful diagnostic method. Recently, therapeutic embolization has been advocated as the treatment of choice for pulmonary arteriovenous malformations. We report a case of multiple pulmonary arteriovenous malformation, which was detected on the simple chest X-ray and successfully treated with coil embolization in a 19-year-old asymptomatic woman.

• Tuberculosis and Respiratory Diseases
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• v.78 no.4
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• pp.408-411
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• 2015

Pulmonary arteriovenous malformations (AVMs) are caused by abnormal vascular communications between the pulmonary arteries and pulmonary veins, which lead to the blood bypassing the normal pulmonary capillary beds. Pulmonary AVMs result in right-to-left shunts, resulting in hypoxemia, cyanosis, and dyspnea. Clinical signs and symptoms vary depending on the size, number, and flow of the AVMs. Transcatheter embolization is the treatment of choice for pulmonary AVMs. However, this method can fail if the AVM is large or has multiple complex feeding arteries. Surgical resection is necessary in those kind of cases. Here, we report the case of a patient with a 6-cm pulmonary AVM with multiple feeding arteries that was successfully treated by repeated coil embolization without surgery.

• Korean Journal of Radiology
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• v.23 no.2
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• pp.202-217
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• 2022

Pulmonary arteriovenous malformation (AVM) is a congenital vascular disease in which interventional radiologists can play both diagnostic and therapeutic roles in patient management. The diagnosis of pulmonary AVM is simple and can usually be made based on CT images. Endovascular treatment, that is, selective embolization of the pulmonary artery feeding the nidus of the pulmonary AVM, and/or selectively either the nidus or draining vein, has become a first-line treatment with advances in interventional devices. However, some vascular diseases can simulate pulmonary AVMs on CT and pulmonary angiography. This subset can confuse interventional radiologists and referring physicians. Vascular mimickers of pulmonary AVM have not been widely known and described in detail in the literature, although some of these require surgical correction, while others require regular follow-up. This article reviews the clinical and radiologic features of pulmonary AVMs and their mimickers.

• Journal of Korean Neurosurgical Society
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• v.60 no.1
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• pp.118-124
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• 2017

Brain abscess commonly occurs secondary to an adjacent infection (mostly in the middle ear or paranasal sinuses) or due to hematogenous spread from a distant infection or trauma. Pulmonary arteriovenous fistulas (AVFs) are abnormal direct communications between the pulmonary artery and vein. We present two cases of brain abscess associated with asymptomatic pulmonary AVF. A 65-year-old woman was admitted with a headache and cognitive impairment that aggravated 10 days prior. An magnetic resonance (MR) imaging revealed a brain abscess with severe edema in the right frontal lobe. We performed a craniotomy and abscess removal. Bacteriological culture proved negative. Her chest computed tomography (CT) showed multiple AVFs. Therapeutic embolization of multiple pulmonary AVFs was performed and antibiotics were administered for 8 weeks. A 45-year-old woman presented with a 7-day history of progressive left hemiparesis. She had no remarkable past medical history or family history. On admission, blood examination showed a white blood cell count of 6290 cells/uL and a high sensitive C-reactive protein of 2.62 mg/L. CT and MR imaging with MR spectroscopy revealed an enhancing lesion involving the right motor and sensory cortex with marked perilesional edema that suggested a brain abscess. A chest CT revealed a pulmonary AVF in the right upper lung. The pulmonary AVF was obliterated with embolization. There needs to consider pulmonary AVF as an etiology of cerebral abscess when routine investigations fail to detect a source.

• Clinical and Experimental Pediatrics
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• v.52 no.1
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• pp.124-128
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• 2009

Pulmonary arteriovenous malformations (PAVMs) are direct communications between pulmonary arteries and pulmonary veins, resulting in right-to-left shunts that may cause cyanosis, dyspnea, and digital clubbing. Neurological complications such as intracerebral hemorrhage or brain abscess may result from cerebral thrombosis or emboli. In most cases, they remain unrecognized until the late teenage years. Here, we report a case of a 6-year-old boy who presented with perioral cyanosis, digital clubbing, and dyspnea on exertion. A plain chest X-ray showed a focal nodular opacity in the right lower lobe (RLL), and a diagnosis of a large PAVM in the RLL was confirmed by chest computed tomography. A right lower lobectomy was successfully performed without any complications. Although their incidence in children is low, PAVMs should be suspected as a possible cause of cyanosis and dyspnea of non-cardiac origin, and should be treated promptly to prevent further neurological complications.

• Clinical and Experimental Pediatrics
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• v.50 no.10
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• pp.1018-1023
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• 2007

Hereditary hemorrhagic telagiectasia (HHT), which is characterized by the classic triad of mucocutaneous telangiectases, arteriovenous malformations (AVMs) and inheritance, is an autosomal dominant disorder. The characteristic manifestations of HHT are all due to abnormalities of the vascular structure. This report deals with the case of a 14-year-old girl with typical features of HHT that include recurrent epistaxis, mucocutanous telangiectases, pulmonary and cerebral AVMs and a familial occurrence.

• Tuberculosis and Respiratory Diseases
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• v.67 no.1
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• pp.52-58
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• 2009

Pulmonary arteriovenous malformation (PAVM) is a rare pulmonary vascular anomaly due to an abnormal communication between the pulmonary artery and vein. The most common presenting symptom is a dyspnea on exertion related to this right-to-left shunt. If left untreated, PAVM has been known to result in serious complications. Incomplete pulmonary capillary network can be the cause of cerebral abscesses and other noninfectious neurological complications, such as stroke and transient ischemic attacks due to paradoxic embolism Transcatheter embolotherapy, using coils or balloons, has replaced surgical resection as the treatment of choice for PAVM. However, the risk of device embolization has limited the use of coil embolotherapy, while the size of PAVM is huge. Recently, Amplatzer$^{(R)}$ Vascular Plug has been proposed as an alternative endovascular occlusion device for arteriovenous malformation. We report a case of 81-year-old male patient with a giant PAVM, which was successfully treated by transcatheter embolotherapy using the Amplatzer$^{(R)}$ Vascular Plug.

• Journal of Chest Surgery
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• v.34 no.12
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• pp.952-955
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• 2001

Pulmonary arteriovenous malformations(PAVM) are uncommon diseases. Brain abscesse could be a rare and devastating comlplication of PAVM. Central nervous complaints may be the first manifestations of PAVM. We report a case of PAVM presented by brain abscess which was treated by craniotomy.

• Tuberculosis and Respiratory Diseases
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• v.61 no.6
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• pp.585-590
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• 2006

Pulmonary arteriovenous malformations (PAVMs) are abnormal direct communications between the pulmonary arteries and veins. PAVMs may occur as either an isolated abnormality or in association with hereditary hemorrhagic telangiectasia, also called Osler-Weber-Rendu disease. The topic of PAVM has recently been extensively reviewed, but little is known about the clinical characteristics and course of patients having a diffuse pattern of the disease. Herein, is reported a case of unilateral diffuse PAVM in an 18 year old female patient, who underwent a right pneumonectomy, under a video-assisted thoracic surgery (VATS) approach, as the diffuse small pulmonary arteriovenous malformation involved the whole right lung.

• Journal of the Korean Society of Radiology
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• v.82 no.2
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• pp.440-446
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• 2021

The levoatriocardinal vein is an uncommon pulmonary venous abnormality that connects the left atrium or pulmonary vein with the systemic vein. It is distinct from partial anomalous pulmonary venous return in that the former forms a connection with the left atrium through the normal pulmonary vein whereas the latter involves pulmonary venous drainage to the systemic vein. Herein, we describe a case of the levoatriocardinal vein initially misdiagnosed as a pulmonary arteriovenous malformation using chest radiography and chest CT. The levoatriocardinal vein combined with pulmonary venous varix was confirmed using pulmonary angiography. To the best of our knowledge, this unusual coexistence of the levoatriocardinal vein and pulmonary venous varix has not been reported in English literature.