Background The aim of this study was to determine the prevalence and anatomic features major tracheobronchial anomalies. Methods Major electronic databases were systematically searched identify eligible studies. Data extracted pooled into a meta-analysis. primary outcome anomalies, specifically tracheal bronchus (TB) accessory cardiac (ACB). Secondary outcomes included origin ...

Endobronchial tuberculosis (EBTB) is defined as tuberculosis infection of the tracheobronchial tree with microbial and histopathological evidence. The clinical symptoms of the diseases are nonspecific. Chronic cough is the major symptom of the disease. The diagnosis is often delayed due to its nonspecific presentation and misdiagnosed as bronchial asthma. This case is presented to recall the no...

A rare occurrence of invasive pulmonary aspergillosis complicates influenza pneumonia in a previously healthy adult. Five other similar cases are reported in the literature. Both transient depression of cell-mediated immunity and loss of ciliary function in the tracheobronchial tree occurs during acute influenzal illness and may predispose to fungal superinfection. Early diagnosis and treatment...

Papillomas are rare tumors of the respiratory tract, which are usually considered benign. We studied a male patient with adult onset of squamous papillomatosis involving both the trachea and the bronchi, with malignant degeneration. When we obtained specimens bronchoscopically, only the bronchial lesions showed carcinomatous changes. Thoracotomy demonstrated carcinoma in the tracheal lesion as ...

During the fourth week of embryonic development, the rudiment of the respiratory tree appears as a median laryngotracheal groove in the ventral wall of the pharynx. The groove subsequently deepens and its edges fuse to form a septum, thus converting the groove into a splanchnopleuric laryngotracheal tube. This process of fusion commences caudally and extends cranially but does not involve the c...

ronchogenic carcinoma causes most of the morbidity and mortality associated with neoplasms of the lower respiratory tract. The term "bronchial adenoma" has been used to describe a small subgroup which comprises about 1.5 percent of all neoplasms of the lower respiratory tract.'p2 The value of the term "bronchial adenoma" lies in its gross descriptive classification of a group of primary endobro...

Nonlinear dynamics, a branch of the basic sciences that studies complex physical systems, offers novel approaches to long-standing problems of physiological form and function. The nonlinear concept of fractals, introduced and developed over the last decade, provides insights into the organization of complex structures such as the tracheobronchial tree and heart, as well as into the dynamics of ...

Pulmonary sequestration is a rare cystic malformation composed of bronchopulmonary tissue that is discontinuous from the tracheobronchial tree and has an anomalous systemic blood supply. We present a case of a 40-year old male who presented with an extralobar pulmonary sequestration and underwent a laparoscopic retroperitoneal mass excision. Preoperative imaging revealed a large 11.3-cm retrope...

Intra pulmonary sequestration is a rare congenital disorder that is characterized by malformation of pulmonary tissue having no connection to normal tracheobronchial tree and pulmonary arteries. This is a case history of 20 years old man initially misdiagnosed as Tuberculosis and later diagnosis of intra-lobar pulmonary sequestration was confirmed. There are few reports of this rare disorder gl...

Tracheobronchial colonization by Gram-negative bacteria is common in mechanically ventilated patients. Pseudomonas sp are commonly isolated from the lower airways. We hypothesized that Pseudomonas sp would preferentially colonize the lower airway and would be more common in patients with poor nutritional status. We serially collected 75 pairs of upper and lower respiratory tract cultures from 1...