Spontaneous Intraparenchymal Tension Pneumocephalus

2020 ◽  
Vol 81 (06) ◽  
pp. 575-578
Author(s):  
Hyukjoon Seo ◽  
Sang Hoon Kim ◽  
Jiwook Ryu ◽  
Sung Ho Lee
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Space ◽  
Frontal Sinus ◽  
Rare Case ◽  
Brain Parenchyma ◽  
Tension Pneumocephalus ◽  
Bony Mass ◽  
The Right ◽  
The Brain ◽  
Sinus Mucosa

AbstractTension pneumocephalus is a treatable emergency that is usually caused by trauma or surgery. We present a rare case of spontaneous tension pneumocephalus. A 64-year-old woman presented with a severe aggravating headache. Computed tomography revealed a large air collection in the brain parenchyma of the right frontal lobe, both lateral ventricles, and the subarachnoid space. Emergent craniotomy was performed because her headache got progressively worse. We found that an abnormal bony protrusion connected the frontal sinus mucosa and the intraparenchymal pneumocephalus. After removal of the bony mass and repair of the defect, the patient immediately recovered and there was no recurrence.

scholarly journals Cerebral Cavernous Hemangioma in a Dog

2019 ◽  
Vol 47 ◽  
Author(s):  
Viviane Motta dos Santos Moretto ◽  
Luciana Maria Curtio Soares ◽  
Esthefanie Nunes ◽  
Uiara Hanna Araújo Barreto ◽  
Valéria Régia Franco Sousa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Endothelial Cells ◽  
Cavernous Hemangioma ◽  
Clinical Signs ◽  
Ct Scanning ◽  
Ct Scans ◽  
Elastic Fibers ◽  
Post Contrast ◽  
The Right ◽  
The Brain

Background: Cerebral cavernous hemangioma is a rare neoplasm of vascular origin in the brain, characterized by abnormally dilated vascular channels surrounded by endothelium without muscle or elastic fibers. Presumptive diagnosis is performed by magnetic resonance or computed tomography (CT) scanning and can be confirmed by histopathology. The prognosis of intracranial cavernous hemangioma is poor, with progression of clinical signs culminating in spontaneous death or euthanasia. The purpose of this paper is to report a case of cerebral cavernous hemangioma in a dog, presenting the clinical findings, tomographic changes, and pathological findings.Case: This case involved a 2-year-old medium sized mixed breed female dog presenting with apathy, hyporexia, ataxia, bradycardia, dyspnea, and seizure episodes for three days. Hemogram and serum biochemistry of renal and hepatic function and urinalysis did not reveal any visible changes. CT scanning was also performed. The scans revealed a hyperdense nodule of 15.9 x 14 mm, with well defined borders, and a hypodense halo without post-contrast enhancement and mass effect in the right parietal lobe was observed in both transverse and coronal sections. Based on the image presented in the CT scans, the nodule was defined as a hemorrhagic brain lesion. The animal died after a seizure. The right telencephalon was subjected to necropsy, which revealed a reddish-black wel-defined nodule 1.7 cm in diameter extending from the height of the piriform lobe to the olfactory trine at the groove level and extending towards the lateral ventricle, with slight compression and deformation of the thalamus but no other macroscopic alterations in the other organs. The histopathology indicated that this nodular area in the encephalus contained moderate, well-delimited but unencapsulated cellularity, composed of large vascular spaces paved with endothelial cells filled with erythrocytes, some containing eosinophilic fibrillar material (fibrin) and others with organized thrombus containing occasional neutrophil aggregates. The endothelial cells had cytoplasm with indistinct borders, elongated nuclei, scanty crust-like chromatin, and cellular pleomorphism ranging from discrete to moderate, without mitotic figures.Discussion: The histological findings characterized the morphological changes in the brain as cavernous hemangioma, and the growth and compression of this neoplasm were considered the cause of the clinical signs of this dog. The main complaint was seizures, although ataxia and lethargy were also noted. These clinical signs are often related to changes in the anterior brain and brainstem. The literature does not list computed tomography as a complementary diagnostic method in cases of cerebral cavernous hemangioma in dogs, but CT scanning was useful in confirming cerebral hemorrhage. The main differential diagnosis for cerebral cavernous hemangioma would be a hamartoma, but what differentiates them histologically is the presence of normal interstices between the blood vessels, since no intervening neural tissue occurs in the case of cerebral hemangioma. Therefore, even in the absence of immunohistochemistry to more confidently confirm a cavernous hemangioma, the clinical signs, CT scans and especially the pathological findings were consistent with a case of cerebral cavernous hemangioma, a benign neoplasm with a poor prognosis due to the severe neurological changes it causes and its difficult treatment.

scholarly journals Multiple Parenchymal Neurocysticercosis: A Case Report

2012 ◽  
Vol 10 (1) ◽  
pp. 44-45 ◽  
Author(s):  
I KC ◽  
KJ Rana ◽  
R Joshi ◽  
A Mandal ◽  
S Bhhatarai
Keyword(s):  
Rare Case ◽  
Taenia Solium ◽  
Parasitic Infection ◽  
Brain Parenchyma ◽  
Larval Form ◽  
Cns Involvement ◽  
Huge Number ◽  
Adult Tapeworm ◽  
The Brain ◽  
Multiple Cysts

Cysticercosis is a parasitic infection with CNS involvement in 60-90% of infested patients. The larval form of pork intestinal tapeworm (Taenia solium) is responsible for cysticercosis. Humans are the definitive hosts and usually harbor the adult tapeworm in small intestine as an asymptomatic infestation. Neurocysticercosis most commonly affects the brain parenchyma. Solitary and multiple cysts in brain parencyma is common but we came across a 24 year old lady patient with huge number of cysts which is relatively rare. The aim of this article is to report the rare case. DOI: http://dx.doi.org/10.3126/mjsbh.v10i1.6450 Medical Journal of Shree Birendra Hospital Jan-June 2011 10(1) 44-45

scholarly journals Epithelioid and spindle-cell haemangioendothelioma in the brain of a dog: a case report

2018 ◽  
Vol 63 (No. 4) ◽  
pp. 193-197 ◽  
Author(s):  
T. Yaman ◽  
A. Uyar ◽  
OF Keles ◽  
Z. Yener
Keyword(s):  
Endothelial Cells ◽  
Blood Cells ◽  
Spindle Cell ◽  
Clinical Symptoms ◽  
Brain Parenchyma ◽  
Tumour Cells ◽  
Macroscopic Findings ◽  
The Right ◽  
The Brain ◽  
Cut Surface

A 9.5-year-old male Belgian malinois dog died after showing clinical symptoms that included fatigue, anorexia and dyspnoea. Necropsy revealed macroscopic findings in the brain and other organs. A solitary, brown-red-coloured mass, approximately 0.5 cm thick and 1.5 × 2 cm in diameter, was detected on the right side of the medulla oblongata, pons and cerebellum. The cut surface showed no invasion of the brain parenchyma. Histologically, the neoplasm was characterised by proliferation of endothelial cells, which showed epithelioid and spindle cell features. Some tumour cells had intracytoplasmic lumen formations containing red blood cells. The nuclei of the tumour cells were large and vesicular. In immunohistochemical experiments the tumour cells stained positive for factor VIII-related antigen, CD31 and CD34. A description is provided of the features of this epithelioid and spindle-cell haemangioendothelioma (EHE) that originated from vessels of the meninges in the subarachnoid space.

scholarly journals Nasal Cavity Paraganglioma: Literature Review and Discussion of a Rare Case

2017 ◽  
Vol 2 (2) ◽  
pp. 1-15 ◽  
Author(s):  
Juliana Maria de Almeida Vital ◽  
Terence Pires de Farias ◽  
Fernando Luiz Dias ◽  
Juliana Fernandes de Oliveira ◽  
José Gabriel Miranda da Paixão ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Literature Review ◽  
Nasal Cavity ◽  
Rare Case ◽  
Bleeding Risk ◽  
Preoperative Embolization ◽  
Long Period ◽  
Radiologic Investigation ◽  
The Right

Paragangliomas can be found from the skull base to the sacrum. Sinonasal paragangliomas are infrequent. A 16-year-old female reported spontaneous discrete bilateral epistaxis once a month beginning when she was 3 years of age. Computed tomography showed an expansive hypervascular mass occupying the right nasal cavity and nasopharynx. Sinonasal paragangliomas usually occur in middle-aged women. Radiologic investigation is essential for the diagnosis of sinonasal paragangliomas and evaluating extension of the lesion. Endoscopic and conventional approaches are effective, and preoperative embolization is paramount for reducing bleeding risk. Histopathological features cannot differentiate benign from malignant paragangliomas, and since metastasis may eventually occur, follow-up must be carried out for a long period of time.

scholarly journals PARATHYROMATOSIS: A RARE CASE OF RECURRENT HYPERPARATHYROIDISM LOCALIZED BY FOUR-DIMENSIONAL COMPUTED TOMOGRAPHY

2019 ◽  
Vol 5 (6) ◽  
pp. e384-e387 ◽  
Author(s):  
Abraham E. Wei ◽  
Matthew R. Garrett ◽  
Ankur Gupta
Keyword(s):  
Computed Tomography ◽  
Rare Case ◽  
Clinical Laboratory ◽  
Parathyroid Tissue ◽  
Severe Hypercalcemia ◽  
Positron Emission ◽  
Affected Tissue ◽  
History Of ◽  
The Right ◽  
Recurrent Hyperparathyroidism

Objective: To present a rare case of parathyromatosis. Methods: We present the clinical, laboratory, and imaging findings, along with a review of the literature. Results: A 33-year-old man with a history of right upper parathyroid adenoma removal 5 years prior due to hyperparathyroidism was admitted for severe hypercalcemia (15.6 mg/dL; normal, 8.5 to 10.5 mg/dL) with elevated plasma parathyroid hormone (PTH) (882 pg/mL; normal, 15 to 65 pg/mL). Ultrasound, computed tomography (CT), sestamibi, and positron emission tomography scans were unremarkable; however, a four-dimensional CT (4DCT) of the neck showed an area of increased signal enhancement and hypervascularity without discrete nodule in the posterior right thyroid region. The patient underwent parathyroid surgical exploration with right hemithyroidectomy and compartment neck dissection to remove the affected tissue. PTH levels dropped to 208 pg/mL postoperatively; calcium decreased but remained elevated at 12.7 mg/dL. Pathology revealed the presence of several small nodular foci of atypical hyperplastic parathyroid tissue in the right thyroid and soft tissue in the left central neck compartment consistent with parathyromatosis. Conclusion: This case report represents the first-time use of 4DCT to localize parathyromatosis. Parathyromatosis is a rare but problematic cause of recurrent hyperparathyroidism. Ultrasound and 4DCT may represent the best imaging modalities for identification and perioperative management to remove all affected tissue without reseeding.

CASE REPORT: ANGIOSTRONGYLIASIS IN A PALLAS’S SQUIRREL (CALLOSCIURUS ERYTHRAEUS)

2018 ◽  
Vol 44 (01) ◽  
pp. 41-45 ◽  
Author(s):  
Yun-Chieh Tuan ◽  
Hsin-Yu Kuo ◽  
Ji-Hang Yin ◽  
Fun-Rewn Chang ◽  
Kwong-Chung Tung ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Case Report ◽  
Interstitial Pneumonia ◽  
Subarachnoid Space ◽  
Rare Case ◽  
Angiostrongylus Cantonensis ◽  
Intact Male ◽  
Callosciurus Erythraeus ◽  
History Of ◽  
The Brain

This is a rare case of a wild squirrel that was diagnosed with angiostrongyliasis characterized by the presence of larvae-induced eosinophilic meningoencephalomyelitis. A wild, intact, male Pallas’s squirrel (Callosciurus erythraeus) of unknown age was presented with a history of progressive paralysis in both forelimbs and hindlimbs. Gradually, the squirrel showed signs of deterioration, found dead and submitted for a complete pathological diagnosis. Necropsy revealed the presence of severe and diffuse congestion in the subarachnoid space of the brain and mild congestion in the spinal cord. Microscopically, severe meningoencephalomyelitis and interstitial pneumonia were consistent with lesions induced by Angiostrongylus cantonensis (A. cantonensis). Although A. cantonensis has been widely studied in rabbits, mice and humans, infection in squirrels has not been documented. This may be the first reported case of angiostrongyliasis in the Pallas’s squirrel.

scholarly journals P.158 Feeling Green

2021 ◽  
Vol 48 (s3) ◽  
pp. S65-S65
Author(s):  
A Ghare ◽  
K Langdon ◽  
A Andrade ◽  
R Kiwan ◽  
A Ranger ◽  
...  
Keyword(s):  
Brain Parenchyma ◽  
Myeloid Sarcoma ◽  
Cerebellar Hemisphere ◽  
Hematologic Neoplasms ◽  
Short History ◽  
History Of ◽  
Immature Myeloid Cells ◽  
Long Course ◽  
The Right ◽  
The Brain

Background: Myeloid sarcoma (MS) is a rare solid tumour made of myeloblasts or immature myeloid cells in an extramedullary site or in bone, associated with systemic hematologic neoplasms. When they occur in the brain parenchyma, they can often be misdiagnosed. Methods: The authors report a case of a 4-year old boy 6 months out of remission from AML, presenting with a short history of headaches and vomiting, and found to have a heterogenous contrast-enhancing lesion in the right cerebellar hemisphere, with differential diagnosis of myeloid sarcoma, astrocytoma, medulloblastoma and ATRT. Preliminary diagnosis was made flow cytometry from an intraoperative biopsy. The patient had a long course of chemotherapy and radiation, but eventually died from the systemic burden of his AML. Results: The authors present a literature review on 178 published cases of CNS myeloid sarcomas, and their radiological presentation and the basis of immunohistochemical and pathological diagnosis is discussed. Conclusions: Diagnosis rests on a combination of immunohistochemistry and histopathology of biopsied tissue. Surgical resection is controversial, especially given the efficacy of chemotherapy and radiation, and prognosis remains unclear. As with all uncommon and rare clinical entities, further investigation is warranted to determine prognosis and optimal management of CNS myeloid sarcomas.

scholarly journals Unexpected intracranial location of a Cephenemyia stimulator larva in a roe deer, Capreolus capreolus, revealed by computed tomography

2021 ◽  
Vol 33 ◽  
pp. 1-7
Author(s):  
Luis E. Fidalgo ◽  
Ana M. López-Beceiro ◽  
Carlos Martínez-Carrasco ◽  
Noelia Caparrós-Fontarosa ◽  
Antonio Sánchez ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Central Nervous System ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Brain Parenchyma ◽  
Anatomical Location ◽  
Migration Route ◽  
The Central Nervous System ◽  
Hemorrhagic Lesion ◽  
The Brain

In this study we describe the finding of a Cephenemyia stimulator larva in the brain of a roe deer (Capreolus capreolus) after performing a computed tomography (CT) scan of its head. Despite this anatomical location of oestrid larvae could be relatively frequent in other genera, such as Oestrus, to our knowledge, this is the first reported case involving the genus Cephenemyia. Concretely, a second-instar C. stimulator larvae was found in the basis of the cranium. The location of a macroscopic hemorrhagic lesion involving the brain parenchyma peripheral to the location of the larva suggests that tissue colonization occurred before the animal was hunted. Since no detectable alterations or damage to the cranial bones were observed, we suggest a possible larval migration route drilling the skull bones. Finally, we propose the use of the term “neuromyiasis” to be referred to the invasion of the central nervous system by dipteran larvae, particularly oestrids.

scholarly journals Dyke-Davidoff-Masson Syndrome

2013 ◽  
Vol 52 (189) ◽  
pp. 272-274
Author(s):  
Kalyan Paudel ◽  
Anand Venugopal
Keyword(s):  
Computed Tomography ◽  
Early Childhood ◽  
Cerebral Hemisphere ◽  
Parietal Lobe ◽  
Degenerative Changes ◽  
Cerebral Peduncle ◽  
Upper And Lower Extremities ◽  
Uncommon Condition ◽  
The Right ◽  
The Brain

Dyke-Davidoff-Masson syndrome refers to atrophy of one cerebral hemisphere (hemiatrophy) due to an insult to the brain in fetal or early childhood period. This is an uncommon condition. We present a case of a nine month- old female presented with seizure and weakness of the right upper and lower extremities and subsequently computed tomography was performed and showed hemiatrophy of the left fronto-parietal lobe with degenerative changes in the left cerebral peduncle. Keywords: Dyke-Davidoff-Masson syndrome; hemiatrophy; hemiplegia.

scholarly journals VATS right upper posterior segmentectomy with anomalous bronchiand pulmonary vessels: a case report and literature review

2020 ◽  
Author(s):  
Jianbin Zhang ◽  
Yilv Zhu ◽  
Hongwei Li ◽  
Caihua Yu ◽  
Weiwei Min
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Rare Case ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Posterior Segment ◽  
Detailed Model ◽  
Case Presentation ◽  
Pulmonary Vessels ◽  
The Right

Abstract BackgroundAnatomic variation may increase the difficulty and risk for anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography and angiography(3D-CTBA) can provide a detailed model of the segmental structure, and contribute to precise and safe segmentectomy.Case presentationWe report a case with anomalous bronchi and pulmonary vessels in the right upper posterior segment (RS2), under the guidance of 3D-CTBA, anatomic RS2segmentoctomywas performed accurately and safely, the postoperative condition was uneventful.ConclusionsThis rare case highlights the importance of 3D-CTBA to guild accurate segmentectomy with anatomic variation.

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