Search

Key message Re‐expansion pulmonary edema (REPE) and mucus plug‐induced atelectasis are potential complications that clinicians should be aware of following chest tube placement for pneumothorax.

Infection caused by Candida auris has rapidly become a global health threat. C. auris created a significant healthcare burden due to various complicating factors, including misidentification by commercial identification methods, potent antifungal resistance, high mortality rates and the possibility of nosocomial outbreaks through direct contact. In Vietnam, there are currently no clinical reports on C. auris infections. Here, we present four clinical cases of C. auris infections in the Department of Pulmonary Medicine of Cho Ray Hospital in southern Vietnam. Through this report, we aim to highlight the attention to the emergence of C. auris in Vietnam. Further research on C. auris infections is warranted, focusing on newly observed clinical characteristics present in all cases in this report, including hypoalbuminaemia and corticosteroid usage. Moreover, one case of resistance to amphotericin B has been identified, possibly due to prior exposure to this antifungal agent.

Central airway obstruction often presents with respiratory symptoms identical to those of common respiratory diseases. Diagnosis of central airway obstruction is challenging in clinical practice, especially misdiagnosed as asthma or chronic obstructive pulmonary disease in case of “normal” chest X-ray. Here, we reported five central airway obstruction cases: the first and fourth cases misdiagnosed as asthma, the second masquerading as chronic obstructive pulmonary disease exacerbation, the third diagnosed incorrectly with non-resolving pneumonia, and the fifth misdiagnosed as chronic obstructive pulmonary disease. We then analyzed diagnostic clues potentially useful to differentiate central airway obstruction from asthma/chronic obstructive pulmonary disease. A multidisciplinary approach to manage central airway obstruction is essential, particularly selecting judiciously the method of respiratory support due to the high risk of completed airway collapse or obstruction during interventional period.

Abstract Pulmonary alveolar proteinosis (PAP) is an uncommon disease and its diagnosis remains challenging. During the COVID-19 pandemic, it has been difficult to distinguish between PAP and post-COVID-19 pulmonary sequelae. Here we present a case of a 44-year-old male patient who experienced exertional dyspnea after recovering from COVID-19. He was initially diagnosed with post-COVID-19 syndrome and treated with systemic corticosteroid without improvement. Chest computed tomography (CT) showed crazy-paving pattern with ground-glass opacities. Fibreoptic bronchoscopy with bronchial lavage fluid (BLF) analysis confirmed the final diagnosis of PAP. The patient underwent left lung lavage in combination with conventional therapy and experienced significant improvement in his respiratory condition and overall health during follow-up. Hence, PAP could occur after a COVID-19 infection. This case highlights the importance of considering PAP as a potential diagnosis in patients with persistent respiratory symptoms after COVID-19. The high suspicion indicators of PAP revealed by chest-CT and BLF may be a key to differentiating PAP from post-COVID-19 pulmonary sequelae. Moreover, it is plausible that SARS-CoV-2 plays a role in the development of proteinosis, either by inducing a flare-up or by directly causing the condition.

Burkholderia pseudomallei has been rarely mentioned as a causative organism of thoracic empyema in previous literature. Here, we reported two cases (a 66-year-old male farmer and a 57-year-old male security guard) presenting with fever and pleuritic chest pain. Their chest computed tomography scans revealed pleural effusion which was frank pus confirmed through thoracentesis. The result of pus culture isolated B. pseudomallei suitable to diagnose melioidosis. These patients were treated successfully with appropriate antibiotics without chest tube drainage. Although uncommon, melioidosis could present exclusively as thoracic empyema.

Background: Clinical characteristics of endobronchial tuberculosis (EBTB) patients whose sputum smears were negative have not been elucidated yet. Method: EBTB patients with negative sputum smears were documented retrospectively at the outpatient pulmonary clinic from late 2015 to early 2019. Results: We described the characteristics of 31 EBTB patients with negative sputum smears. The median age was 36 years (range 18–81 years). The male-to-female ratio is 1:1.58. The “peripheral” lesion group included 16 cases with opacity/consolidation, 2 cases with atelectasis, 1 case with cavitary lesion, and 1 case with pleural effusion. The “central” lesion group included four cases with normal chest X-ray and seven cases with only unilateral hilar enlargement. EBTB patients with “central” lesion were more common the presence of cough, the positive rate of bronchial lavage acid-fast bacilli smear, and the rate of misdiagnosis as pharyngitis, bronchitis, or asthma than that with “peripheral” lesion. Conclusions: EBTB with negative sputum smears was found in adult patients at any age and predominant in females. The diagnosis of EBTB with “central” lesion was more difficult than that with “peripheral” lesion. The location of the lesion could play a role in inducing cough among EBTB patients.

Abstract Asthma and pulmonary tuberculosis (PTB) are disease entities with different pathogenesis. However, endobronchial tuberculosis (EBTB), a peculiar form of PTB, can mimic the symptoms of asthma. Although uncommon, the coexistence of asthma and PTB can appear. We report three cases of PTB. The first two cases with EBTB were misdiagnosed as asthma and the third case with asthma developed PTB four months after high‐dose inhaled corticosteroid (ICS) therapy. The first two cases presented with chronic cough up mucopurulent/purulent sputum and localized wheezing which revealed diagnostic clues. The third case presented with dry cough and showed a positive bronchodilator response and the right pulmonary apical fibrosis which could be associated with quiescent tuberculous infection. EBTB should be included in the differential diagnosis of asthma. Although rare, physicians should be aware that PTB can also be developed during the treatment course of asthma.

Background: Endobronchial tuberculosis (EBTB) is a challenging diagnosis because of its varied clinical and radiological manifestations. Hilar asymmetry on chest radiograph (CXR) may be found in patient with EBTB but is often overlooked, which may lead to delayed diagnosis. Case report: We present five cases with EBTB. Clinicians failed to identify unilateral hilar abnormalities on CXR, and these patients were treated initially for pharyngitis, bronchitis, or pneumonia with no improvement. Subsequently, they visited the pulmonary clinic and bronchoscopy revealed endobronchial lesions and microbial/histopathological evidence of tuberculous infection consistent with EBTB. Anti-tuberculosis therapy resulted in complete clinical resolution in four of the five patients; one patient had persistent bronchial stenosis. Conclusion: Hilar asymmetry on CXR may occur with EBTB and may suggest this diagnosis in the appropriate clinical setting. Bronchoscopy has an important role in establishing the final diagnosis. Keywords: Bronchoscopy, Chest radiograph, Endobronchial tuberculosis, Hilar asymmetry

Allergic Bronchopulmonary Aspergillosis (ABPA) can be diagnosed in an asthmatic with suitable radiologic and immunological features. However ABPA is likely to be misdiagnosed with bacterial pneumonia. Here we report a case of ABPA masquerading as recurrent bacterial pneumonia. Treatment with high-dose inhaled corticosteroids was effective. To our best knowledge, this is the first reported case of ABPA in Vietnam.

A 61-year-old alcoholic man presented to the emergency department because of vomiting and dyspnea after discharged from hospital due to appendectomy two days ago. He smoked heavily and his past medical history revealed gastritis. On the examination, he was hypotension (50/00 mmHg) and lethargy. Cardiopulmonary resuscitation was initiated aggressively. His chest x-ray showed right-sided tension pneumothorax (A). Chest drainage tube was inserted immediately and his clinical status improved spectacularly. On the fifth hospital day, the presence of food particles (rice, green onions) (red arrows) in the chest tube was found accidentally (B). Suspecting for esophageal perforation, the oral methylene blue test showed that the fluid in the chest tube turned bluish (C). Boerhaave's syndrome was established. An operation undertaken revealed a perforation of lower esophagus which was marked with nasogastric tube (yellow arrow) (D). However, his condition became worsen with nosocomial infection and died after that. The contents in the chest tube which can be an important diagnostic clue should be checked closely in the clinical practice.

Chronic cough is a common symptom with a diversity of underlying respiratory causes. The COVID-19 pandemic has added complexity to the identification of the etiology of chronic cough, as persistent cough has been frequently reported among COVID-19 survivors. We present a case of a 21-year-old woman, with prolonged cough and wheezing following a mild COVID-19 infection. Despite multiple attempts to recognize the cause and manage her cough, her symptoms did not improve. A careful examination revealed monophonic wheezing and purulent sputum, raising suspicion for Endobronchial Tuberculosis (EBTB). Chest computed tomography scan showed a tree-in-bud pattern and narrowed the bronchial lumen. Acid-fast bacillus smear and genXpert MTB/RIF test further confirmed the presence of Mycobacterium tuberculosis. This case highlights the importance of considering EBTB as a potential diagnosis for chronic cough, particularly in COVID-19 survivors in tuberculosis-endemic areas. [ABSTRACT FROM AUTHOR]