Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0019079 (hemoptysis)
 6,129 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Three cases illustrate the principal clinical and roentgenographic varieties of granular cell myoblastoma (GCM) of the lung. The vast majority are small benign intrabronchial tumors without roentgenographic findings. These remain asymptomatic and are detected accidentally at autopsy, surgery, or bronchoscopy (Case III). Larger obstructing lesions (Case I) cause focal atelectasis or pneumonitis, leading to cough, expectoration, and hemoptysis. Hilar enlargement from reactive lymph node hyperplasia is common. Clinically and roentgenographically these are indistinguishable from bronchial adenomas. Least often the tumor extends entirely extrabronchially (Case II) presenting as a parahilar parenchymal asymptomatic nodule, simulating a granuloma, hamartoma, arteriovenous malformation or a neoplastic nodule.
 ...
PMID:Granular cell myoblastoma of the lung. 17 51

A case is reported of life-threatening haemoptysis as a result of an anomalous communication between a bronchial artery and pulmonary vein, demonstrated by angiography. The patient recovered following bilobectomy of the right lower and middle lobes. When a systemic artery is involved in an arteriovenous malformation of the lung, haemodynamics are different compared with those present in malformations fed by the pulmonary artery. This implicates other clinical features, options for surgical intervention and prognosis. In reviewing the literature, a relationship with Rendu-Osler-Weber disease is absent in these specific malformations.
 ...
PMID:Systemic to pulmonary vascular malformation. 148 79

A 57-year-old man with massive hemoptysis was thought to have a pulmonary arteriovenous malformation (PAVM) on the basis of computerized tomography of the chest. Angiography, however, revealed a pulmonary artery embolus as the case of the hemoptysis; the tomographic appearance of PAVM had been mimicked by the delay of contrast material within the involved pulmonary artery proximal to the occluding embolus. This finding suggests caution in the use of CT to diagnose PAVM, especially in clinical situations compatible with other diagnoses, and confirms the importance of pulmonary angiography in the definitive evaluation of suspected PAVM.
 ...
PMID:Pulmonary embolism masquerading as pulmonary arteriovenous malformation on computerized tomography. 274 65

Unilateral absence of a pulmonary artery is an uncommon condition and usually complicated by a cardiac anomaly. Our case is a rare one who showed the absence of the left pulmonary artery with left aortic arch and without cardiac anomaly. He suffered from recurrent hemoptysis and pneumonia since he was 9 months old. Angiography revealed peribronchial arteriovenous malformation of the affected lung which was supplied from subclavicular arteries and bronchial arteries. Although he was treated by operative ligation and angiographic embolotherapy of the supplying systemic arteries, the repeated the attacks of massive hemoptysis and necessiated left pneumonectomy at 10 years of age.
 ...
PMID:Isolated unilateral absence of left pulmonary artery with peribronchial arteriovenous malformation showing recurrent hemoptysis. 360 65

Pulmonary arteriovenous malformation (PAVM) results from an anomalous communication between a pulmonary artery and vein and may lead to life-threatening hemoptysis. Pulmonary angiography is the standard diagnostic technique but may be falsely negative in the unusual instance of a thrombosed PAVM. We report a patient with a thrombosed PAVM in which the initial pulmonary angiogram incorrectly suggested pulmonary embolism. A subsequent magnetic resonance (MR) angiogram demonstrated recanalization of the PAVM, thus establishing the true nature of the lesion and leading to appropriate intervention.
 ...
PMID:MR angiographic diagnosis of recanalization in a thrombosed pulmonary arteriovenous malformation. 820 73

Since the first report of pulmonary endometriosis as a cause of catamenial haemoptysis all cases have been assumed to be due to pulmonary endometriosis, even in the absence of histopathological proof. A case is presented where the histological findings were of a pulmonary arteriovenous malformation.
 ...
PMID:Catamenial haemoptysis: a rare cause. 825 37

A pregnant woman presented with hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu syndrome) and a single pulmonary arteriovenous malformation (AVM) that had been embolized 5 years previously. Partly due to pregnancy, recanalization of the aneurysm occurred with subsequent hemoptysis. Despite successful therapeutic reembolization of the afferent pulmonary artery, hemoptysis recurred 5 days later. At this time, recanalization of the pulmonary artery was not demonstrated by pulmonary angiography, but a systemic angiogram revealed a bronchial arterial supply to the pulmonary AVM. A systemic supply should always be sought in cases of recurrent hemoptysis after technically successful embolization of the feeding pulmonary artery.
 ...
PMID:Systemic supply to a pulmonary arteriovenous malformation: potential explanation for recurrence. 875 86

Rendu-Osler disease is a familial disorder transmitted as an autosomal dominant trait of high penetrance. It is characterized by telengiectasias of the skin, mucous membranes and viscera, associated with recurrent bleedings. Neurological complications (brain abcesses and hemorrhagic manifestations) occur in 10% of the patients. Neurological symptoms are often associated with arteriovenous fistula of the lung (50%). Ischaemic strokes occuring in such patients with an hemorrhagic disease while unfrequent, have been described. The pathophysiology of stroke in that case remains unclear. Polycythemia causing hyperviscosity, air embolism following hemoptysis, paradoxical embolism through right-to-left shunt have been proposed. We report a new case of ischaemic strokes occuring in a caucasian forty-year-old woman, with Rendu-Osler disease (familial history, epistaxis, telengiectasias) and with an arteriovenous malformation of the right lung. She presented two strokes and one transient ischaemic attack. Her pulmonary malformation was occluded by embolization. The role of arteriovenous malformation in the pathophysiology of strokes is discussed.
 ...
PMID:[Ischemic cerebrovascular complications in Rendu-Osler disease: a case]. 876 58

A 47-year-old man was referred to our hospital because of hemoplysis. He had a history of chronic sinusitis and surgical treatment of a spinal arteriovenous malformation. A chest X-ray film and computed tomographic scan showed dextrocardia, diffuse bronchiectasis, and an aspergilloma in the right upper lung field. The source of the bleeding could not be detected by fiberoptic bronchoscopy. Transbronchial mocosal biopsy was done and examination of a specimen by transmission electron microscopy revealed the lack of inner and outer dynein arms. A chest X-ray film and computed tomographic scan of his nephew, who had a long history of productive cough showed dextrocardia and right lower-lobe bronchiectasis. These findings indicate that hemoptysis in patients with Kartagener's Syndrome can be caused not only by bronchiectasis but also by aspergilloma.
 ...
PMID:[Kartagener's syndrome with aspergilloma]. 916 58

Hemoptysis due to pulmonary arteriovenous malformation (PAVM) is rare in pediatric patients, but it must be included in the differential diagnosis of hemoptysis after other etiologies are excluded. We present a case of an 11-yr-old girl who presented with massive hemoptysis due to a PAVM.
 ...
PMID:Massive hemoptysis in a child due to pulmonary arteriovenous malformation. 925 81


1 2 3 4 5 Next >>