Caseous mitral annulus calcification: A forgotten benign condition mimicking cardiac mass, a case report.

Key Clinical Message: Caseous mitral annulus calcification is a rare benign condition that can be misdiagnosed on echocardiography especially when it presents as a mass. This report highlights the contribution of cardiac MRI and computed tomography to the diagnosis through the case of a patient previously treated for breast cancer.

Abstract: We report the case of a patient, previously treated for breast cancer, in whom echocardiography suggested the diagnosis of a cardiac tumor due the presence of a mass on the posterior mitral annulus.

Cystic adventitial disease of the popliteal artery with unusual spontaneous regression: A case report with literature review.

This report highlights the case of cystic adventitial disease of the left popliteal artery in a 45-year-old male patient. Imaging modalities confirmed the diagnosis and high resolution MRI found a cystic connection to the adjacent knee joint. The evolution was unusual with spontaneous regression of the symptoms.

Isolated Persistent Left Superior Vena Cava Revealed by an Associated Asthma.

Background: Persistent left superior vena cava (PLSVC) is a rare anomaly of the thoracic venous system. . We present a case of a patient with isolated asymptomatic PLSVC, who was diagnosed because of dyspnea revealing an associated asthma.

Distance education in times of covid 19: a leap into the future?

Introduction: Online education has grown a lot in recent months in our country during the global health crisis (COVID19). It has been widely used at all levels and fields of education ranging from elementary school to graduate and postgraduate studies. The aim of this study is to evaluate this teaching method compared to classical face-to-face teaching by referring to the learner's point of view.

A bilinear convolutional neural network for lung nodules classification on CT images.

Purpose: Lung cancer is the most frequent cancer worldwide and is the leading cause of cancer-related deaths. Its early detection and treatment at the stage of a lung nodule improve the prognosis. In this study was proposed a new classification approach named bilinear convolutional neural network (BCNN) for the classification of lung nodules on CT images.

Deep learning-based CAD schemes for the detection and classification of lung nodules from CT images: A survey.

Background: Lung cancer is the most common cancer in the world. Computed tomography (CT) is the standard medical imaging modality for early lung nodule detection and diagnosis that improves patient's survival rate. Recently, deep learning algorithms, especially convolutional neural networks (CNNs), have become a preferred methodology for developing computer-aided detection and diagnosis (CAD) schemes of lung CT images.

Interstitial lung diseases: Imaging contribution to diagnosis and elementary radiological lesions.

Interstitial pneumonias comprise a heterogeneous group of disorders in which a multidisciplinary approach is important for accuracy in diagnosis; indeed, one might say, even mandatory. The team of collaborators should include radiologists, because high resolution computed tomography (HRCT) of the thorax is the first, and most of times, the only imaging examination to be prescribed after chest X-ray. Elementary lesions of the interstitium can be accurately described with HRCT, inasmuch as lung windowing with sharp filtering in this technique reproduces the microscopic features of the lung.

[Bronchopulmonary carcinoid tumors: Tunisian experience with 115 surgically treated cases].

Introduction: Bronchial carcinoid tumors are rare well-differentiated, neuro-endocrine tumors, with low-grade malignancy. They are distinguished in two different groups: typical and atypical carcinoid. The purpose of this study was to review clinical, surgical and pathological characteristics in patients with primary bronchopulmonary carcinoid tumors.

[Imaging of pulmonary artery involvement in Takayasu disease].

Objectives: Illustrate imaging aspects of pulmonary artery involvement in Takayasu's arteritis.

Patients And Methods: Retrospective study of six patients among 28 patients with Takayasu arteritis whose disease involved the pulmonary arteries and to review their clinical and computed tomography data.

Results: Mean patient age among those with pulmonary artery involvement was 34 years.

[The role of imaging in thoracic tuberculosis].

Tuberculosis is an infectious disease mostly due to Mycobacterium tuberculosis. It is frequent in developing countries and its incidence is rising in developed countries. Lungs are the most involved organs of the chest but other structures can be affected.

Posterior mediastinal angiomyxolipoma with spinal canal extension.

Background: Angiomyxolipoma is a benign tumor considered as a variant of lipoma and that occurs mainly in the subcutis. The mediastinal location hasn't been previously reported.

Aim: To describe the radiological features of this tumor in its posterior mediastinal location and to confront them to the pathological features.

[Small-cell lung carcinoma: CT imaging features].

Small cell lung carcinoma (SCLC) typically is central in location. It is a very aggressive tumor characterized by its propensity for invasion of mediastinal structures, frequently, the ipsilateral pulmonary artery, multifocal nodal metastases and high frequency of distant metastases at initial presentation. CT is very sensitive and effective for local and regional staging.

Acute pulmonary embolism: epidemiologic and tomodensitometric study.

Background: Acute pulmonary embolism is a common disease with substantial morbidity and mortality in untreated patients. It requires an urgent positive diagnosis.

Aim: To assess the prevalence of acute pulmonary embolism and calculate the sensitivity and specificity of multidetector CT for the diagnosis of acute pulmonary embolism in a hospital specialized in cardio-thoracic diseases.

Imaging of thoracic textiloma.

Objective: Intrathoracic textiloma or gossypiboma, a retained surgical sponge in the thoracic cavity, is an exceptional but serious complication following thoracic or abdominal surgery. The purpose of this work is to highlight the topographic features of thoracic textiloma and to describe imaging aspects, and, particularly, computed tomography (CT) features.

Methods: Eight patients have been operated in our thoracic surgery department for thoracic gossypiboma.

[Imaging features of primary pulmonary lymphomas].

Introduction: Primitive pulmonary lymphomas (PPL) are rare tumors, often misdiagnosed by radiologists.

Methods: In order to illustrate the various radiological presentations of PPL, we report a retrospective series of nine cases of PPL collected in our service over a period of four years. A mucosa-associated lymphoid tissue (MALT) lymphoma was found in six patients, a diffuse large B-cell lymphoma in two patients and lymphomatoid granulomatosis in one patient.

[Pseudotumoral mediastinal amyloidosis].

Purpose: Amyloidosis involvement of mediastinal nodes is rare. Isolated pseudotumoral involvement without extra-thoracic disease is a diagnostic challenge and typically raises concern for underlying malignancy. We present 3 cases of pseudotumoral mediastinal amyloidosis.

[Inflammatory myofibroblastic tumors of the lung: Imaging features].

Inflammatory myofibroblastic tumors are ubiquitous but most frequently affect the lung. The imaging features are non-specific but the diagnosis may be suggested in the presence of solitary pulmonary nodule or mass in children or young adults. The tumor may appear locally and regionally aggressive suggesting malignancy.

Castleman's disease: an intrapulmonary form with intrafissural development.

Castleman's disease (CD) is an uncommon, mainly benign, lymphoproliferative disorder of unknown etiology, mostly involving the mediastinum. Parenchymal lung involvement of the disease is exceedingly rare. We describe a case of CD in a 23-year-old woman with a 4-year history of recurring dyspnea and nonproductive cough, whose chest X-ray showed an abnormal shadow of the right hilum.