Cerebral venous angioma of the pons complicated by nonhemorrhagic infarction

2004 ◽  
Vol 101 (4) ◽  
pp. 690-693 ◽  
Author(s):  
Johann Peltier ◽  
Patrick Toussaint ◽  
Christine Desenclos ◽  
Daniel Le Gars ◽  
Herve Deramond
Keyword(s):  
Anticoagulation Therapy ◽  
Clinical History ◽  
Neurological Status ◽  
Unusual Complication ◽  
Venous Angioma ◽  
Venous Infarction ◽  
Content Type ◽  
History Of ◽  
Venous Angiomas ◽  
The Brain

✓ The authors emphasize an unusual complication of venous angiomas in the brain: venous infarction. The patient in this case is a 32-year-old man who presented with a clinical history of headache followed by a worsening of his neurological status. Neuroimaging studies demonstrated a brain infarct in the posterior fossa, which was related to thrombosis of the draining vein of a cerebral venous angioma. A conservative treatment approach without anticoagulation therapy was followed and the patient completely recovered. Nonhemorragic venous infarction caused by thrombosis of a venous angioma is exceptional and only nine previous cases have been reported in the literature.

Radiosurgery for venous angiomas

1993 ◽  
Vol 78 (4) ◽  
pp. 531-536 ◽  
Author(s):  
Christer Lindquist ◽  
Wan-Yio Guo ◽  
Bengt Karlsson ◽  
Ladislau Steiner
Keyword(s):  
Venous Drainage ◽  
The Other ◽  
Minimal Risk ◽  
Venous Angioma ◽  
Content Type ◽  
Complete Obliteration ◽  
Effects Of Radiation ◽  
Venous Angiomas ◽  
The Brain ◽  
Fine Print

✓ Radiosurgical treatment with the gamma knife for venous angiomas was used as an alternative to microsurgical removal in order to avoid abrupt cessation of venous drainage, which may be shared by the venous angioma and important parts of the brain. Thirteen cases of venous angioma were treated between 1977 and 1991. In two cases cavernous angiomas were also present and in one case a distant arteriovenous malformation (AVM) was also found. In two cases the angioma shared the venous drainage with an adjoining AVM; this is the first description of such pathology. For venous angiomas irradiation was prescribed to cover at least the convergence of the medullary veins. For AVM's close to a venous angioma the treatment was exclusively prescribed to the AVM nidus. After treatment, complete obliteration of the venous angioma was observed in one case, partial obliteration was observed in three cases, and five venous angiomas were unaffected by the treatment. Undue effects of radiation occurred in four cases: one focal edema and three radionecroses. Extirpation of the radionecrotic tissue 6 months after radiosurgery was necessary in one case. In the other three cases, the venous angioma was observed to be completely or partially obliterated, or unaffected by the treatment (one case each). In two cases of combined AVM and venous angioma, complete obliteration of the treatment AVM nidus was obtained. It is concluded that radiosurgery for venous angioma, although conceptually attractive, still does not fulfill the rigid criteria of minimal risk which must be set for the treatment of a lesion with a benign natural history.

The natural history of intracranial venous angiomas

1991 ◽  
Vol 75 (5) ◽  
pp. 715-722 ◽  
Author(s):  
Timothy B. Garner ◽  
O. Del Curling ◽  
David L. Kelly ◽  
D. Wayne Laster
Keyword(s):  
Natural History ◽  
Imaging Techniques ◽  
Venous Drainage ◽  
Vascular Lesion ◽  
Neurological Dysfunction ◽  
Content Type ◽  
History Of ◽  
Clinical Records ◽  
Venous Angiomas ◽  
Fine Print

✓ Cerebral venous angiomas are congenital anomalies of the intracranial venous drainage. Many believe that they are associated with a high risk of hemorrhage and neurological dysfunction, but newer neurodiagnostic imaging techniques are showing not only that they are more common than previously known but also that many have no associated symptoms. In this retrospective study, the natural history of venous angiomas was examined in 100 patients (48 males and 52 females) with radiographically identifiable lesions treated over a 14-year period. Information on the natural history of the lesion was obtained from clinical records and follow-up data. Imaging studies included angiography, computerized tomography, and magnetic resonance imaging. Angioma locations were classified as frontal (42 cases), parietal (24 cases), occipital (4 cases), temporal (2 cases), basal or ventricular (11 cases), cerebellar (14 cases), or brain stem (3 cases); 47 lesions were on the left side. Headache as a presenting symptom was common (36 patients) and often led to other radiographic studies, but this appeared to be related to the vascular lesion in only four patients. Other possibly related complications were hemorrhage in one patient, seizures in five, and transient focal deficits in eight. Fifteen patients had no neurological signs or symptoms. The mean patient age at last contact was 45.3 years (range 3 to 94 years). All patients have been managed without surgery. It is concluded that significant complications secondary to venous angiomas are infrequent and that surgical resection of these lesions and of surrounding brain is rarely indicated.

Production of experimental brain abscess in the rat

1979 ◽  
Vol 51 (5) ◽  
pp. 685-690 ◽  
Author(s):  
H. Richard Winn ◽  
Michael Mendes ◽  
Paul Moore ◽  
Clarabelle Wheeler ◽  
George Rodeheaver
Keyword(s):  
Brain Abscess ◽  
Clinical Situation ◽  
Small Animals ◽  
Content Type ◽  
History Of ◽  
Slow Infusion ◽  
The Brain ◽  
Number Of Bacteria ◽  
Experimental Brain Abscess ◽  
Fine Print

✓ Experimental evaluation of brain abscess has been inhibited by the lack of a simple and reproducible model in small animals. A stereotaxic headholder and slow infusion of 1 µl of saline, containing a known number of bacteria, were used to produce brain abscess consistently in the rat. The natural history of the brain abscess produced by this technique closely simulated that found in the human clinical situation.

False cerebral aneurysm associated with metastatic carcinoma of the brain

1974 ◽  
Vol 41 (3) ◽  
pp. 380-382 ◽  
Author(s):  
Abdon Reina ◽  
Robert B. Seal
Keyword(s):  
Cerebral Aneurysm ◽  
Clinical History ◽  
Metastatic Carcinoma ◽  
Malignant Cells ◽  
Carotid Angiography ◽  
Left Frontal Lobe ◽  
Content Type ◽  
Aneurysm Wall ◽  
The Brain ◽  
Fine Print

✓In a patient with metastatic carcinoma of the left frontal lobe, carotid angiography revealed a false cerebral aneurysm arising from the middle cerebral vessels. At craniotomy the aneurysm was found to be surrounded by tumor and cortex. Since the clinical history excluded trauma, it was inferred that the histologically-proven invasion of the aneurysm wall by malignant cells was responsible for the formation of a false cerebral aneurysm.

Hematoma from arteriovenous malformation producing hydrocephalus and simulating a thalamic tumor

1971 ◽  
Vol 34 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Larry K. T. Ng ◽  
Gabriel Schwarz ◽  
Mark M. Mishkin
Keyword(s):  
Vascular Malformation ◽  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Intracerebral Hematoma ◽  
Content Type ◽  
The Third ◽  
Brain Substance ◽  
History Of ◽  
The Brain ◽  
Symptoms And Signs

✓ Two patients with a history of progressive unilateral neurological symptoms and signs, and evidence of obstructive hydrocephalus from a mass lesion adjacent to the third ventricle as demonstrated by pneumography, were each found to have an intracerebral hematoma secondary to remote hemorrhage from a small vascular malformation. One patient died shortly after surgical exploration and the other after ventriculography. The pathophysiology of hydrocephalus associated with a vascular malformation is discussed and the need for considering a benign cause for obstructive hydrocephalus from a mass deep in the brain substance is emphasized.

Secondary removal of retained bone fragments in missile wounds of the brain

1982 ◽  
Vol 57 (5) ◽  
pp. 617-621 ◽  
Author(s):  
Arnold M. Meirowsky
Keyword(s):  
Neurological Deficit ◽  
Complete Resolution ◽  
Neurological Status ◽  
Bone Fragment ◽  
Cerebrospinal Fluid Fistula ◽  
Initial Operation ◽  
Content Type ◽  
Bone Fragments ◽  
Secondary Operations ◽  
The Brain

✓ Secondary operations for the removal of retained bone fragments have been performed in 116 of the 1133 casualties with craniocerebral missile wounds incurred in the war in Vietnam, 1967 to 1970. Various complications developed in 19 of these 116 casualties. Dehiscence of the wound occurred in eight patients, five of whom developed a cerebrospinal fluid fistula. Infection manifested itself in 16 cases with retained bone fragments prior to their secondary removal; however, infection first became apparent after the secondary operation in seven patients. Two of the seven patients with infection died. The neurological deficit became worse in four of the 116 patients following the secondary removal of a bone fragment: there was complete resolution of that deficit in one, and return to the neurological status existing after the initial operation in another; the other two patients developed a permanently disabling neurological deficit, an incidence of 1.7%.

Cerebral venous malformations

1990 ◽  
Vol 73 (4) ◽  
pp. 560-564 ◽  
Author(s):  
Daniele Rigamonti ◽  
Robert F. Spetzler ◽  
Marjorie Medina ◽  
Karen Rigamonti ◽  
David S. Geckle ◽  
...  
Keyword(s):  
Venous Malformation ◽  
Neurological Dysfunction ◽  
Neurological Deficits ◽  
Venous Angioma ◽  
Venous Malformations ◽  
Content Type ◽  
History Of ◽  
The Relationship ◽  
Fine Print

✓ Although cerebral venous malformations have been reported to cause epilepsy, progressive neurological deficits, and hemorrhage, their clinical significance remains controversial. In an attempt to clarify the natural history of the lesion and suggest an appropriate management strategy, the authors review their experience with 30 patients. In four patients with cerebellar venous angioma, an acute episode of ataxia was documented. The coexistence of a cavernous malformation was pathologically confirmed in the two patients who underwent surgery for bleeding presumed caused by the venous angioma. Infarction was shown in two patients and a tumor in two others. Follow-up periods ranged between 18 and 104 months, with only five patients symptomatic at the time of this report. Rebleeding had not occurred, nor had acute episodes of neurological dysfunction been documented. This clinical experience suggests that a venous malformation is frequently associated with other, more symptomatic conditions and is often erroneously identified as the source of the symptoms. Because the nature of the relationship between the venous malformation and the allied conditions remains ambiguous, it is recommended that patients harboring a “symptomatic” venous malformation undergo high-field magnetic resonance imaging to rule out underlying pathology, and that any such pathology be treated independently of the venous malformation.

Choroid plexus carcinoma presenting as an intraparenchymal mass

2001 ◽  
Vol 95 (6) ◽  
pp. 1040-1044 ◽  
Author(s):  
Alexis Byrne Carter ◽  
Donald L. Price ◽  
Keith A. Tucci ◽  
Gregory K. Lewis ◽  
Jeffrey Mewborne ◽  
...  
Keyword(s):  
Choroid Plexus ◽  
Skull Fracture ◽  
Ct Scanning ◽  
Cystic Mass ◽  
Choroid Plexus Carcinoma ◽  
Left Frontal Lobe ◽  
Content Type ◽  
Resected Tissue ◽  
History Of ◽  
The Brain

✓ A 6-year-old girl with a history of a nondisplaced skull fracture diagnosed with computerized tomography (CT) scanning 3 years previously presented with a 6-week history of headaches and decreased use of her right side. On admission CT scans, a large cystic mass was identified in the left frontal lobe region of the brain. A connection between the mass and the ventricular system was not seen on radiological examination or during surgery. Gross-total resection of the mass was achieved. The histological and immunohistochemical findings in the resected tissue confirmed a diagnosis of choroid plexus carcinoma (ChPC). This is the first reported case of a ChPC arising in an extraventricular location not associated with the choroid plexus.

scholarly journals Fonsecaea pugnacius, a Novel Agent of Disseminated Chromoblastomycosis

2015 ◽  
Vol 53 (8) ◽  
pp. 2674-2685 ◽  
Author(s):  
Conceição M. P. S. de Azevedo ◽  
Renata R. Gomes ◽  
Vania A. Vicente ◽  
Daniel W. C. L. Santos ◽  
Sirlei G. Marques ◽  
...  
Keyword(s):  
Internal Transcribed Spacer ◽  
Novel Species ◽  
Large Subunit ◽  
Fatal Case ◽  
Content Type ◽  
History Of ◽  
Brain Abscesses ◽  
The Right ◽  
The Brain ◽  
Novel Agent

We report a fatal case of a chromoblastomycosis-like infection caused by a novel species ofFonsecaeain a 52-year-old immunocompetent Caucasian male from an area of chromoblastomycosis endemicity in Brazil. The patient had a 30-year history of slowly evolving, verrucous lesions on the right upper arm which gradually affected the entire arm, the left hemifacial area, and the nose. Subsequent dissemination to the brain was observed, which led to death of the patient. The internal transcribed spacer (ITS) and partial large subunit (LSU),BT2, andCDC42genes of the isolates recovered from skin and brain were sequenced, confirming the novelty of the species. The species is clinically unique in causing brain abscesses secondary to chromoblastomycosis lesions despite the apparent intact immunity of the patient. Histopathologic appearances were very different, showing muriform cells in skin and hyphae in brain.

Appearance of venous malformations on magnetic resonance imaging

1988 ◽  
Vol 69 (4) ◽  
pp. 535-539 ◽  
Author(s):  
Daniele Rigamonti ◽  
Robert F. Spetzler ◽  
Burton P. Drayer ◽  
W. Michel Bojanowski ◽  
John Hodak ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Signal Intensity ◽  
Cavernous Malformation ◽  
Venous Malformation ◽  
Venous Drainage ◽  
Venous Malformations ◽  
Mr Images ◽  
Content Type ◽  
Venous Angiomas ◽  
The Brain

✓ The magnetic resonance (MR) imaging appearance of venous malformations, all angiographically verified, was evaluated in 11 patients. A venous malformation is characteristically depicted as a tubular area of decreased signal intensity in the white matter of the brain. In one patient, a histologically verified cavernous malformation was also present with a characteristic mixed signal-intensity core on the T2-weighted MR images. Care should be used when evaluating venous angiomas to exclude the presence of a lesion with associated prominent venous drainage, such as a glioma.

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