Chest Radiograph of Atypical Pneumonia: Comparison among Chlamydia pneumoniae Pneumonia, Ornithosis, and Mycoplasma pneumoniae Pneumonia

Ito, Isao; Ishida, Tadashi; Hashimoto, Toru; Arita, Machiko; Osawa, Makoto; Takahashi, Hiromasa; Nishiyama, Hideki; Takakura, Syunji; Bando, Kenji; Nishizawa, Yasuo; Amitani, Ryoichi; Onishi, Hisashi; Terada, Yoshio

doi:10.11150/kansenshogakuzasshi1970.74.954

Cited by 10 publications

(5 citation statements)

References 12 publications

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“…After treatment, laboratory examinations were performed on November 2, 2020, with the results were as follows: ALT, 14 U/L; AST, 30 U/L; direct bilirubin 10.7 μmol/L; and indirect bilirubin 14.2 μmol/L. Ito et al drew a comparison between mycoplasma pneumonia, C. pneumonia , and C. psittaci pneumonia, and they found that C. psittaci infection was dominated by frosted glass shadow bilateral lung lesions which were more common, and ~8% of patients exhibited pleural effusion ( 7 ). In this case, the patient exhibited bilateral lung disease with right pleural effusion.…”

Section: Discussionmentioning

confidence: 99%

Gestational Psittacosis With Secondary Hemophagocytic Syndrome: A Case Report and Literature Review

Sun

Pang

et al. 2021

Front. Med.

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Gestational psittacosis and hemophagocytic syndrome (HPS) are rare clinical diseases. In this article, a case of gestational psittacosis concomitant with secondary HPS was reported. An analysis was performed on the clinical characteristics, signs, laboratory findings, progression, diagnosis, and treatment of a patient with gestational psittacosis concomitant with secondary HPS. Besides, the literature with respect to this disease was reviewed. This patient was definitively diagnosed through metagenomic next-generation sequencing techniques, bone marrow puncture and smear examination, and the determination of sCD25 level and natural killer (NK) cell activity. Anti-infectives such as doxycycline and etoposide combined with hormone chemotherapy achieved significant improvement in cough and expectoration, a return to normal temperature, and a significant improvement in oxygenation index. In addition, chest computed tomography revealed obvious absorption of lung lesions and a return of NK cell activity and sCD25 levels to normal ranges. Chlamydia psittaci pneumonia requires a clear determination of etiology, while HPS requires bone marrow puncture and smear examination, together with the determination of sCD25 level and NK cell activity in the blood. The findings of this study suggest that metagenomic next-generation sequencing is an effective instrument in clearly identifying pathogens that cause lung infection. Clinicians should consider atypical pathogens of lung infection in patients with poor response to empirical anti-infectives, and strive to design an effective treatment strategy as per an accurate diagnosis based on the etiology. As for patients suffering from long-term high fever and poor temperature control after broad-spectrum antibiotic treatment, non-infectious fever should be taken into account. A rapid and clear diagnosis would significantly improve patient prognosis.

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Section: Discussionmentioning

confidence: 99%

Gestational Psittacosis With Secondary Hemophagocytic Syndrome: A Case Report and Literature Review

Sun

Pang

et al. 2021

Front. Med.

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“…Mycoplasma pneumoniae is a common cause of bronchitis and CAP in Western countries [27]. On imaging, appearances are very variable and the most commonly found radiographic abnormality is a bronchopneumoniatype pattern with patchy consolidation [28]. However, several studies state that bronchial wall thickening is the commonest finding, found in over 80% of patients [29,30].…”

Section: Pneumonia With An Interstitial Pattern On Imagingmentioning

confidence: 99%

“…Image-guided placement of thoracostomy tubes avoids the complications of misplacement of a tube. Radiologists tend to use narrower gauge tubes (8)(9)(10)(11)(12)(13)(14)(15)(16) French) than those used for non-guided thoracostomy (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34). These narrower bore catheters are better tolerated by patients but are more prone to occlusion from fibrinous debris.…”

Section: Empyema and Parapneumonic Effusionmentioning

confidence: 99%

Pneumonia in the immunocompetent patient

Reynolds

McDonald²,

Alton³

et al. 2010

BJR

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Pneumonia is an acute inflammation of the lower respiratory tract. Lower respiratory tract infection is a major cause of mortality worldwide. Pneumonia is most common at the extremes of life. Predisposing factors in children include an under-developed immune system together with other factors, such as malnutrition and over-crowding. In adults, tobacco smoking is the single most important preventable risk factor. The commonest infecting organisms in children are respiratory viruses and Streptoccocus pneumoniae. In adults, pneumonia can be broadly classified, on the basis of chest radiographic appearance, into lobar pneumonia, bronchopneumonia and pneumonia producing an interstitial pattern. Lobar pneumonia is most commonly associated with community acquired pneumonia, bronchopneumonia with hospital acquired infection and an interstitial pattern with the so called atypical pneumonias, which can be caused by viruses or organisms such as Mycoplasma pneumoniae. Most cases of pneumonia can be managed with chest radiographs as the only form of imaging, but CT can detect pneumonia not visible on the chest radiograph and may be of value, particularly in the hospital setting. Complications of pneumonia include pleural effusion, empyema and lung abscess. The chest radiograph may initially indicate an effusion but ultrasound is more sensitive, allows characterisation in some cases and can guide catheter placement for drainage. CT can also be used to characterise and estimate the extent of pleural disease. Most lung abscesses respond to medical therapy, with surgery and image guided catheter drainage serving as options for those cases who do not respond.

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“…Pneumonias caused by Streptococcus pneumoniae (S. pneumoniae) or other bacteria were diagnosed based on at least one of the following tests: blood culture, culture of needle aspiration fluid from pleural effusion or lung, quantitative culture of sputum or bronchoalveolar lavage fluid, and urinary antigen test (Binax NOW ® S. pneumoniae Urinary Antigen Test, Binax, Portland, ME). Specific serological methods were employed for diagnosis of non-bacterial pneumonias [12]. Pneumonia caused by Mycoplasma pneumoniae (M. pneumoniae) was diagnosed by a four-fold rise in the antibody titers (passive hemagglutinin test or complement fixation test) or by culture of sputum or pharyngeal swab [13].…”

Section: Determination Of the Causative Microorganismsmentioning

confidence: 99%

Differentiation of bacterial and non-bacterial community-acquired pneumonia by thin-section computed tomography

Ito

Ishida

Togashi

et al. 2009

European Journal of Radiology

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Chest Radiograph of Atypical Pneumonia: Comparison among Chlamydia pneumoniae Pneumonia, Ornithosis, and Mycoplasma pneumoniae Pneumonia

Cited by 10 publications

References 12 publications

Gestational Psittacosis With Secondary Hemophagocytic Syndrome: A Case Report and Literature Review

Gestational Psittacosis With Secondary Hemophagocytic Syndrome: A Case Report and Literature Review

Pneumonia in the immunocompetent patient

Differentiation of bacterial and non-bacterial community-acquired pneumonia by thin-section computed tomography

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