Massive mediastinal teratoma mimicking a pleural effusion on computed tomography

2013 ◽  
Author(s):  
MB Chow ◽  
TC Lim
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Mediastinal Teratoma

scholarly journals Case Report Mediastinal Teratoma Resembling Vascular Tumor with Rapid Growth Accompanied by Vena Cava Superior Syndrome and Bilateral Paramalignant Pleural Effusion

2020 ◽  
Vol 2 (1) ◽  
pp. 68-75
Author(s):  
Ni Rini ◽  
◽  
Suryanti Pratiwi ◽  
Imam Bayuadi ◽  
Dini Erawati ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Mediastinal Tumor ◽  
Vena Cava ◽  
Vascular Tumor ◽  
Vascular Lesions ◽  
X Ray ◽  
Mediastinal Teratoma ◽  
Vena Cava Superior ◽  
Chest X Ray

Background: Teratomas are tumors originate from germ cells, consist of well differentiated tissue from more than one of three layers of embryonic cells: ectoderm, mesoderm and endoderm. Teratomas are generally slow-growing and asymptomatic. Mediastinal teratoma is the most common extra-gonadal germ cell tumor. Superior vena cava syndrome and bilateral paramaligant pleural effusion are complications which can occur in mediastinal teratomas. Case: We report a 37-year-old woman presented with shortness of breath since 1 month before admission, chest pain, cough, weight loss, swolen of face, neck, and right arm. Chest x-ray showed mediastinal tumor. However, no mediastinal tumor had been detected by chest x-ray to examine her heart disease 3 years earlier. Chest computed tomography scan showed anterosuperior mediastinal tumor surrounding great blood vessels and bilateral pleural effusion. Computed tomography guided transthoracic fine needle aspiration biopsy revealed tumor containing mature squamous epithelial component. Patient underwent open biopsy by sternotomy and histological assessment confirmed the diagnosis as mediastinal teratoma with vascular lesions predominantly resembling vascular tumor. Conclusion: Establishing the diagnosis of mediastinal teratoma is challenging and it requires multi modality approaches.

scholarly journals Prediction of ComplicatedClostridium difficileInfection by Pleural Effusion and Increased Wall Thickness on Computed Tomography

2009 ◽  
Vol 49 (4) ◽  
pp. 554-560 ◽  
Author(s):  
Louis Valiquette ◽  
Jacques Pépin ◽  
Xuan‐Vien Do ◽  
Vincent Nault ◽  
Andrée‐Anne Beaulieu ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Wall Thickness

scholarly journals Pancreaticopleural fistula: An insidious cause of pleural effusion –case report

2021 ◽  
Author(s):  
Fábio Murteira ◽  
Tiago Costa ◽  
Sara Barbosa Pinto ◽  
Elsa Francisco ◽  
Ana Catarina Gomes
Keyword(s):  
Computed Tomography ◽  
Acute Pancreatitis ◽  
Case Report ◽  
Pleural Effusion ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Pancreatic Amylase ◽  
Pleural Effusions ◽  
Primary Event ◽  
Endoscopic Retrograde ◽  
Left Chest

Pancreaticopleural fistulas (PPF) are a rare etiology of pleural effusions. We describe a case of a 61-year-old man, with left chest pain with six months of progression who presented with a large volume unilateral pleural effusion. A thoracentesis was performed, which showed a dark reddish fluid(exudate) and high content of pancreatic amylase. After that an abdominal computed tomography (CT)and magnetic resonance cholangiopancreatography (MRCP) was done, revealing fistulous pathways that originated in the pancreas. The patient was admitted for conservative and endoscopic treatment by Endoscopic Retrograde Cholangiopancreatography (ERCP) and a prosthesis was placed on a fistulous path. He was discharged without complications, with the resolution of the pleural effusion and fistula.The interest of this case lies in the rarity of the event and absence of symptoms of the probable primary event (acute pancreatitis). The possible iatrogenic association with several drugs of his usual medication makes it even more complex.

scholarly journals Time-Resolved Versus Integrated Transit Planar Dosimetry for Volumetric Modulated Arc Therapy

2016 ◽  
Vol 15 (6) ◽  
pp. NP79-NP87 ◽  
Author(s):  
L.C.G.G. Persoon ◽  
M. Podesta ◽  
S.M.J.J.G. Nijsten ◽  
E.G.C. Troost ◽  
F. Verhaegen
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Tumor Regression ◽  
Control Point ◽  
Volumetric Modulated Arc Therapy ◽  
Time Resolved ◽  
Treatment Dose ◽  
Arc Therapy ◽  
Geometrical Change ◽  
Radiation Treatments

Purpose: It is desirable that dosimetric deviations during radiation treatments are detected. Integrated transit planar dosimetry is commonly used to evaluate external beam treatments such as volumetric-modulated arc therapy. This work focuses on patient geometry changes which result in differences between the planned and the delivered radiation dose. Integrated transit planar dosimetry will average out some deviations. Novel time-resolved transit planar dosimetry compares the delivered dose of volumetric-modulated arc therapy to the planned dose at various time points. Four patient cases are shown where time-resolved transit planar dosimetry detects patient geometry changes during treatment. Methods: A control point to control point comparison between the planned dose and the treatment dose of volumetric-modulated arc therapy beams is calculated using the planning computed tomography and the kV cone-beam computed tomography of the day and evaluated with a time-resolved γ function. Results were computed for 4 patients treated with volumetric-modulated arc therapy, each showing an anatomical change: pleural effusion, rectal gas pockets, and tumor regression. Results: In all cases, the geometrical change was detected by time-resolved transit planar dosimetry, whereas integrated transit planar dosimetry showed minor or no indication of the dose discrepancy. Both tumor regression cases were detected earlier in the treatment with time-resolved planar dosimetry in comparison to integrated transit planar dosimetry. The pleural effusion and the gas pocket were detected exclusively with time-resolved transit planar dosimetry. Conclusions: Clinical cases were presented in this proof-of-principle study in which integrated transit planar dosimetry did not detect dosimetrically relevant deviations to the same extent time-resolved transit planar dosimetry was able to. Time-resolved transit planar dosimetry also provides results that can be presented as a function of arc delivery angle allowing easier interpretation compared to integrated transit planar dosimetry.

Pleural Effusion

Chest Imaging ◽  
2019 ◽  
pp. 165-170
Author(s):  
Christopher M. Walker
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Pleural Fluid ◽  
Lateral Displacement ◽  
Pleural Space ◽  
Gravitational Effects ◽  
Pleural Thickening ◽  
Air Bubble ◽  
Fluid Analysis ◽  
Exudative Pleural Effusion

Pleural effusion discusses the radiographic and computed tomography (CT) manifestations of this entity. Pleural effusion is classified based on pleural fluid analysis using Light’s criteria: transudative and exudative. Free pleural fluid collects in the most dependent aspect of the pleural space due to gravitational effects. It exhibits a meniscus configuration on upright chest radiography. Pleural effusion in a supine or semiupright patient is more difficult to identify but may be suspected in cases with a homogeneous or gradient-like opacity over the lower hemithorax, elevation of the hemidiaphragm contour, or an apical cap. Subpulmonic pleural effusion manifests with lateral displacement of the apex of the ipsilateral hemidiaphragm contour and increased distance between the gastric air bubble and pseudodiaphragmatic contour. Exudative pleural effusion should be suspected in cases with CT findings of pleural thickening, enhancement, septations, and/or loculations.

scholarly journals (F)utility of computed tomography of the chest in the presence of pleural effusion

2017 ◽  
Vol 2 (4) ◽  
pp. 181-186 ◽  
Author(s):  
Tilak Pathak ◽  
Malvinder S. Parmar
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Ct Scan ◽  
Clinical Management ◽  
Chest Ct ◽  
X Ray ◽  
Contrast Enhanced ◽  
Plain Chest ◽  
Chest X Ray ◽  
Chest Ct Scan

AbstractBackgroundPleural effusion is common and can cause significant morbidity. The chest X-ray is often the initial radiological test, but additional tests may be required to reduce uncertainty and to provide additional diagnostic information. However, additional exposure and unnecessary costs should be prevented. The objective of the study was to assess the clinical benefit of an additional chest computed tomography (CT) scan over plain chest X-ray alone in the management of patients with pleural effusion.MethodsRetrospective analysis in 94 consecutive patients with pleural effusion who underwent chest X-ray and CT scan over an 18-month period in a single institution. All chest X-ray and CT scan reports were compared and correlated with clinical parameters in order to assess their utility in the clinical management. No blinding was applied.ResultsIn 75 chest CT scan reports (80 %), information provided by the radiologist did not change clinical management when compared to plain chest X-ray alone and did not provide any additional information over chest X-ray. Only 2/49 (4 %) of the native chest CT scan reports provided clinically relevant information as compared to 17/45 (38 %) contrast-enhanced chest CT scan reports (p<0.001).ConclusionsIn this retrospective cohort of patients with pleural effusion, an additional chest CT scan was not useful in the majority of patients. However, if a chest CT scan is required, then a contrast-enhanced study after pleural aspiration should be performed. Further prospective studies are required to confirm these findings.

scholarly journals Application of Computed Tomography (CT) Attenuation Values in Diagnosis of Transudate and Exudate in Patients with Pleural Effusion

2018 ◽  
Vol 11 (02) ◽  
pp. 19-25
Author(s):  
Keshab Sharma ◽  
PS Lamichhane ◽  
BK Sharma
Keyword(s):  
Computed Tomography ◽  
Pleural Effusion ◽  
Ct Scan ◽  
Pleural Fluid ◽  
Pleural Effusions ◽  
Hounsfield Units ◽  
Fluid Analysis ◽  
Ct Attenuation ◽  
The Mean ◽  
Attenuation Values

Background: Pleural effusion is the pathologic accumulation of fluid in the pleural space. The fluid analysis yields important diagnostic information, and in certain cases, fluid analysis alone is enough for diagnosis. Analysis of pleural fluid by thoracentesis with imaging guidance helps to determine the cause of pleural effusion. The purpose of this study was to assess the accuracy of computed tomography (CT) in characterizing pleural fluid based on attenuation values and CT appearance. Materials and Methods: This prospective study included 100 patients admitted to Gandaki Medical College and Teaching Hospital, Pokhara, Nepal between January 1, 2017 and February 28, 2018. Patients who were diagnosed with pleural effusion and had a chest CT followed by diagnostic thoracentesis within 48 hours were included in the study. Effusions were classified as exudates or transudates using laboratory biochemistry markers on the basis of Light’s criteria. The mean attenuation values of the pleural effusions were measured in Hounsfield units in all patients using a region of interest with the greatest quantity of fluid. Each CT scan was also reviewed for the presence of additional pleural features. Results: According to Light’s criteria, 26 of 100 patients with pleural effusions had transudates, and the remaining patients had exudates. The mean attenuation of the exudates (16.5 ±1.7 HU; 95% CI, range, -33.4 – 44 HU) was significantly higher than the mean attenuation of the transudates (11.6 ±0.57 HU; 95% CI, range, 5 - 16 HU), (P = 0.0001). None of the additional CT features accurately differentiated exudates from transudates (P = 0.70). Fluid loculation was found in 35.13% of exudates and in 19.23% of transudates. Pleural thickening was found in 29.7% of exudates and in 15.3% of transudates. Pleural nodule was found in 10.8% of exudates which all were related to the malignancy. Conclusion: CT attenuation values may be useful in differentiating exudates from transudates. Exudates had significantly higher Hounsfield units in CT scan. Additional signs, such as fluid loculation, pleural thickness, and pleural nodules were more commonly found in patients with exudative effusions and could be considered and may provide further information for the differentiation.

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