Differences Among COVID-19, Bronchopneumonia and Atypical Pneumonia in Chest High Resolution Computed Tomography Assessed by Artificial Intelligence Technology
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Bronchopneumonia Definition of Bronchopneumonia
Bronchopneumonia Definition of Bronchopneumonia It is a usual term for inflammation of the lungs (alveolar parenchyma) and Bronchi . How The infection reach the lung ? Inhalation : a- non infectious as dust and gases . b- infectious * Bacterial e.g. pasteurella, staph, pseudomonas. * Viral as Influenza, canine distemper. , Hematogenus : Infection reach the lungs through blood e.g. viruses, bacteria, parasites. External : Via penetrating objects from outside or traumatic reticulitis Predisposing Causes A. Decreased vitality and lowered body resistance . B. Sudden change in weather . C. Fatigue and shipping . D. Exposure to cold climate . E. Crowding of the animals . F. Prolonged use of Antibiotics . Stages of Bronchopneumonia 1) Stage of congestion. Occurs after few minutes or hours (infection). Gross a. All cardinal signs of inflammation are present, as Lung is large, Edematous heavy and dark red. b. On cut section, blood oozesc 2) Stage of red hepatization (humeral exudate) this is reached in 2nd or 3rd day. Grossly: Affected areas are dark (congestion) and firm (fibrin) resembling the liver (hepatized) and the pseudomembrane start to form. 3- Stage of grey Hepatization (cellular exudates). it appears 3-7 days Grossly : Lung is still consolidated but less red in color. The marbling appearance is due to the presence of solidified parts and other congested parts and the cut section is granular . Floating test, the affected part sinks in water. The most recent classification of Bronchopneumonia 1- catarrhal or sappurative bronchopneumonia : it is inflammation of the lung where the initial site of inflammation is the bronchoalveolar junction; usually the lesion involves the cranioventral lobe and being lobular in distribution. -
Rhinitis and Sinusitis
Glendale Animal Hospital 623-934-7243 www.familyvet.com Rhinitis and Sinusitis (Inflammation of the Nose and Sinuses) Basics OVERVIEW Rhinitis—inflammation of the lining of the nose Sinusitis—inflammation of the sinuses The nasal cavity communicates directly with the sinuses; thus inflammation of the nose (rhinitis) and inflammation of the sinuses (sinusitis) often occur together (known as “rhinosinusitis”) “Upper respiratory tract” (also known as the “upper airways”) includes the nose, nasal passages, throat (pharynx), and windpipe (trachea) “Lower respiratory tract” (also known as the “lower airways”) includes the bronchi, bronchioles, and alveoli (the terminal portion of the airways, in which oxygen and carbon dioxide are exchanged) SIGNALMENT/DESCRIPTION OF PET Species Dogs Cats Breed Predilections Short-nosed, flat-faced (known as “brachycephalic”) cats are more prone to long-term (chronic) inflammation of the nose (rhinitis), and possibly fungal rhinitis Dogs with a long head and nose (known as “dolichocephalic dogs,” such as the collie and Afghan hound) are more prone to Aspergillus (a type of fungus) infection and nasal tumors Mean Age and Range Cats—sudden (acute) viral inflammation of the nose and sinuses (rhinosinusitis) and red masses in the nasal cavity and throat (known as “nasopharyngeal polyps”) are more common in young kittens (6–12 weeks of age) Congenital (present at birth) diseases (such as cleft palate) are more common in young pets Tumors/cancer and dental disease—are more common in older pets Foreign -
Legionnaires' Disease
epi TRENDS A Monthly Bulletin on Epidemiology and Public Health Practice in Washington Legionnaires’ disease Vol. 22 No. 11 Legionellosis is a bacterial respiratory infection which can result in severe pneumonia and death. Most cases are sporadic but legionellosis is an important public health issue because outbreaks can occur in hotels, communities, healthcare facilities, and other settings. Legionellosis Legionellosis was first recognized in 1976 when an outbreak affected 11.17 more than 200 people and caused more than 30 deaths, mainly among attendees of a Legionnaires’ convention being held at a Philadelphia hotel. Legionellosis is caused by numerous different Legionella species and serogroups but most epiTRENDS P.O. Box 47812 recognized infections are due to Olympia, WA 98504-7812 L. pneumophila serogroup 1. The extent to which this is due to John Wiesman, DrPH, MPH testing bias is unclear since only Secretary of Health L. pneumophila serogroup 1 is Kathy Lofy, MD identified via commonly used State Health Officer urine antigen tests; other species Scott Lindquist, MD, MPH Legionella pneumophila multiplying and serogroups must be identified in a human lung cell State Epidemiologist, through PCR or culture, tests Communicable Disease www.cdc.gov which are less commonly ordered. Jerrod Davis, P.E. Assistant Secretary The disease involves two clinically distinct syndromes: Pontiac fever, Disease Control and Health Statistics a self-limited flu-like illness without pneumonia; and Legionnaires’ disease, a potentially fatal pneumonia with initial symptoms of fever, Sherryl Terletter Managing Editor cough, myalgias, malaise, and sometimes diarrhea progressing to symptoms of pneumonia which can be severe. Health conditions that Marcia J. -
Pneumonia: Prevention and Care at Home
FACT SHEET FOR PATIENTS AND FAMILIES Pneumonia: Prevention and Care at Home What is it? On an x-ray, pneumonia usually shows up as Pneumonia is an infection of the lungs. The infection white areas in the affected part of your lung(s). causes the small air sacs in your lungs (called alveoli) to swell and fill up with fluid or pus. This makes it harder for you to breathe, and usually causes coughing and other symptoms that sap your energy and appetite. How common and serious is it? Pneumonia is fairly common in the United States, affecting about 4 million people a year. Although for many people infection can be mild, about 1 out of every 5 people with pneumonia needs to be in the heart hospital. Pneumonia is most serious in these people: • Young children (ages 2 years and younger) • Older adults (ages 65 and older) • People with chronic illnesses such as diabetes What are the symptoms? and heart disease Pneumonia symptoms range in severity, and often • People with lung diseases such as asthma, mimic the symptoms of a bad cold or the flu: cystic fibrosis, or emphysema • Fatigue (feeling tired and weak) • People with weakened immune systems • Cough, without or without mucus • Smokers and heavy drinkers • Fever over 100ºF or 37.8ºC If you’ve been diagnosed with pneumonia, you should • Chills, sweats, or body aches take it seriously and follow your doctor’s advice. If your • Shortness of breath doctor decides you need to be in the hospital, you will receive more information on what to expect with • Chest pain or pain with breathing hospital care. -
A Case of Cryptogenic Organizing Pneumonia in a Seventh-Decade Woman
Saudi Journal of Medicine ISSN 2518-3389 (Print) Scholars Middle East Publishers ISSN 2518-3397 (Online) Dubai, United Arab Emirates Website: http://scholarsmepub.com/ A case of Cryptogenic Organizing Pneumonia in a seventh-decade woman. "Yahya Al-FIFI’s Diagnostic Criteria for Cryptogenic Organizing Pneumonia (COP) Without Lung Tissues Biopsies for Histopathology". Is This the Truth of the Reality Or The Reality of the Truth? Yahya Salim Yahya AL-FIFI Consultant, Internal Medicine &Infectious Diseases, Department of Medicine, Infection Diseases Division, Prince Mohammad Bin Nasser Hospital, Jizan, Jazan, Saudi Arabia. Email: [email protected] Abstract: We describe the first and rare case report of a cryptogenic organizing *Corresponding author pneumonia (COP) in a seventh decade diabetic and hypertensive woman from low Yahya Salim Yahya highlands, Jazan, Saudi Arabia. The evidence of the clinical scenario, laboratories testing, radiological images findings followed by a significant improvement due to Article History steroid treatment are quite enough to diagnose COP, irrespective of the lung tissues Received: 19.11.2017 biopsies procedures and processing accessibility for histopathology, in a timely manner Accepted: 24.11.2017 as reveals in “Yahya Al-FIFI’s diagnostic criteria for cryptogenic organizing pneumonia Published: 30.11.2017 (COP) without lung tissues biopsies for histopathology”. We started a methylprednisolone forty milligrams intravenously every eight hourly for seven days DOI: which is showing a dramatic clinical improvement within initial twenty-four hours of 10.21276/sjm.2017.2.7.4 the first seven days and complete recovery clinically and radiologically, at the end of the following fourteen days of tapering prednisolone doses without a relapse for seven months. -
Lansdell Vs. Georgia-Pacific Corporation Awcc# F007360
BEFORE THE ARKANSAS WORKERS’ COMPENSATION COMMISSION CLAIM NO. F007360 ALVIN LANSDELL, EMPLOYEE CLAIMANT GEORGIA-PACIFIC CORPORATION, SELF-INSURED EMPLOYER RESPONDENT OPINION FILED SEPTEMBER 3, 2003 Upon review before the FULL COMMISSION in Little Rock, Pulaski County, Arkansas. Claimant represented by HONORABLE GREGORY R. GILES, Attorney at Law, Texarkana, Arkansas. Respondent represented by HONORABLE MARK A. PEOPLES, Attorney at Law, Little Rock, Arkansas. Decision of the Administrative Law Judge: Affirmed as modified. OPINION AND ORDER The claimant appeals an Administrative Law Judge’s opinion filed August 21, 2002. The Administrative Law Judge found that Act 1281 of 2001 made substantive law changes to the burden of proof for occupational disease and was to be applied prospectively. The Administrative Law Judge therefore found, “Claimant has failed to prove by clear and convincing evidence that he sustained an occupational disease which arose out of and in the course of his employment.” After reviewing the entire record de novo, the Lansdell - F007360 2 Full Commission finds that our recent decision in a companion case, Sikes v. Georgia-Pacific Corporation, Workers’ Compensation Commission F000657 (July 7, 2003), is controlling in this matter as to the appropriate burden of proof. We therefore find that the Legislature meant to apply Act 1281 retroactively, so that the “preponderance of the evidence” standard of Ark. Code Ann. § 11-9-601 (e)(1)(B) applies to the instant matter. The Full Commission further finds that the claimant failed to prove by a preponderance of the evidence that he sustained a compensable occupational disease. We therefore affirm, as modified, the opinion of the Administrative Law Judge. -
Obliterative Bronchiolitis, Cryptogenic Organising Pneumonitis and Bronchiolitis Obliterans Organizing Pneumonia: Three Names for Two Different Conditions
Eur Reaplr J EDITORIAL 1991, 4, 774-775 Obliterative bronchiolitis, cryptogenic organising pneumonitis and bronchiolitis obliterans organizing pneumonia: three names for two different conditions R.M. du Bois, O.M. Geddes Over the last five years, increasing confusion has has been applied to conditions in which airflow obstruc developed over the use of the terms "bronchiolitis tion is prominent and in which response to treatment is obliterans" and "bronchiolitis obliterans organizing poor. pneumonia". The confusion stems largely from the common use of the term "bronchiolitis obliterans" or "obliterative bronchiolitis" in the diagnostic labels applied "Cryptogenic organizing pneumonitis" or "bronchi· to two entities which are quite distinct clinically but which otitis obliterans organizing pneumonia" (BOOP) bear certain resemblances histologically. Cryptogenic organizing pneumonitis was first described by DAVISON et al. [7] in 1983. The clinical syndrome ObUterative bronchiolitis consisted of breathlessness, malaise, fever, high erythrocyte sedimentation rate (ESR), pneumonic In 1977, GEODES et al. [1] reported the case histories shadowing on chest radiograph with a restrictive of six patients whose clinical condition was characterized pulmonary function defect and low gas transfer coeffi by airways obliteration in association with rheumatoid cient. On histological examination of lung biopsy mate· arthritis. The striking clinical features were of rapidly rial, the typical and distinguishing feature was the progressive breathlessness and the fmding on examination presence of connective tissue within the alveoli, alveolar of a high-pitched mid-inspiratory squeak heard over the ducts and, occasionally, in respiratory bronchioles. This lung fields. Chest radiographs showed hyperinflated lungs connective tissue consisted of "loosely woven fibres of but were otherwise normal. -
Pulmonary Aspergillosis: What CT Can Offer Before Radiology Section It Is Too Late!
DOI: 10.7860/JCDR/2016/17141.7684 Review Article Pulmonary Aspergillosis: What CT can Offer Before Radiology Section it is too Late! AKHILA PRASAD1, KSHITIJ AGARWAL2, DESH DEEPAK3, SWAPNDEEP SINGH ATWAL4 ABSTRACT Aspergillus is a large genus of saprophytic fungi which are present everywhere in the environment. However, in persons with underlying weakened immune response this innocent bystander can cause fatal illness if timely diagnosis and management is not done. Chest infection is the most common infection caused by Aspergillus in human beings. Radiological investigations particularly Computed Tomography (CT) provides the easiest, rapid and decision making information where tissue diagnosis and culture may be difficult and time-consuming. This article explores the crucial role of CT and offers a bird’s eye view of all the radiological patterns encountered in pulmonary aspergillosis viewed in the context of the immune derangement associated with it. Keywords: Air-crescent, Fungal ball, Halo sign, Invasive aspergillosis INTRODUCTION diagnostic pitfalls one encounters and also addresses the crucial The genus Aspergillus comprises of hundreds of fungal species issue as to when to order for the CT. ubiquitously present in nature; predominantly in the soil and The spectrum of disease that results from the Aspergilla becoming decaying vegetation. Nearly, 60 species of Aspergillus are a resident in the lung is known as ‘Pulmonary Aspergillosis’. An medically significant, owing to their ability to cause infections inert colonization of pulmonary cavities like in cases of tuberculosis in human beings affecting multiple organ systems, chiefly the and Sarcoidosis, where cavity formation is quite common, makes lungs, paranasal sinuses, central nervous system, ears and skin. -
Pediatric Ambulatory Community Acquired Pneumonia (CAP)
ANMC Pediatric (≥3mo) Ambulatory Community Acquired Pneumonia (CAP) Treatment Guideline Criteria for Respiratory Distress Criteria For Outpatient Management Testing/Imaging for Outpatient Management Tachypnea, in breaths/min: Mild CAP: no signs of respiratory distress Vital Signs: Standard VS and Pulse Oximetry Age 0-2mo: >60 Able to tolerate PO Labs: No routine labs indicated Age 2-12mo: >50 No concerns for pathogen with increased virulence Influenza PCR during influenza season Age 1-5yo: >40 (ex. CA-MRSA) Blood cultures if not fully immunized OR fails to Age >5yo: >20 Family able to carefully observe child at home, comply improve/worsens after initiation of antibiotics Dyspnea with therapy plan, and attend follow up appointments Urinary antigen detection testing is not Retractions recommended in children; false-positive tests are common. Grunting If patient does not meet outpatient management criteria Radiography: No routine CXR indicated Nasal flaring refer to inpatient pneumonia guideline for initial workup Apnea and testing. AP and lateral CXR if fails initial antibiotic therapy Altered mental status AP and lateral CXR 4-6 weeks after diagnosis if Pulse oximetry <90% on room air recurrent pneumonia involving the same lobe Treatment Selection Suspected Viral Pneumonia Most Common Pathogens: Influenza A & B, Adenovirus, Respiratory Syncytial Virus, Parainfluenza No antimicrobial therapy is necessary. Most common in <5yo If influenza positive, see influenza guidelines for treatment algorithm. Suspected Bacterial -
Secondary Pulmonary Alveolar Proteinosis in Hematologic
review Secondary pulmonary alveolar proteinosis in hematologic malignancies Chakra P Chaulagain a,*, Monika Pilichowska b, Laurence Brinckerhoff c, Maher Tabba d, John K Erban e a Taussig Cancer Institute of Cleveland Clinic, Department of Hematology/Oncology, Cleveland Clinic in Weston, FL, USA, b Department of Pathology, Tufts Medical Center Cancer Center & Tufts University School of Medicine, Boston, MA, USA, c Department of Surgery, Tufts Medical Center Cancer Center & Tufts University School of Medicine, Boston, MA, USA, d Division of Critical Care, Pulmonary and Sleep Medicine, Tufts Medical Center Cancer Center & Tufts University School of Medicine, Boston, MA, USA, e Division of Hematology/Oncology, Tufts Medical Center Cancer Center & Tufts University School of Medicine, Boston, MA, USA * Corresponding author at: Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd., Weston, FL 33331, USA. Tel.: +1 954 659 5840; fax: +1 954 659 5810. Æ [email protected] Æ Received for publication 29 January 2014 Æ Accepted for publication 1 September 2014 Hematol Oncol Stem Cell Ther 2014; 7(4): 127–135 ª 2014 King Faisal Specialist Hospital & Research Centre. Published by Elsevier Ltd. All rights reserved. DOI: http://dx.doi.org/10.1016/j.hemonc.2014.09.003 Abstract Pulmonary alveolar proteinosis (PAP), characterized by deposition of intra-alveolar PAS positive protein and lipid rich material, is a rare cause of progressive respiratory failure first described by Rosen et al. in 1958. The intra-alveolar lipoproteinaceous material was subsequently proven to have been derived from pulmonary surfactant in 1980 by Singh et al. Levinson et al. also reported in 1958 the case of 19- year-old female with panmyelosis afflicted with a diffuse pulmonary disease characterized by filling of the alveoli with amorphous material described as ‘‘intra-alveolar coagulum’’. -
PNEUMONIAS Pneumonia Is Defined As Acute Inflammation of the Lung
PNEUMONIAS Pneumonia is defined as acute inflammation of the lung parenchyma distal to the terminal bronchioles which consist of the respiratory bronchiole, alveolar ducts, alveolar sacs and alveoli. The terms 'pneumonia' and 'pneumonitis' are often used synonymously for in- flammation of the lungs, while 'consolidation' (meaning solidification) is the term used for macroscopic and radiologic appearance of the lungs in pneumonia. PATHOGENESIS. The microorganisms gain entry into the lungs by one of the following four routes: 1. Inhalation of the microbes. 2. Aspiration of organisms. 3. Haematogenous spread from a distant focus. 4. Direct spread from an adjoining site of infection. Failure of defense me- chanisms and presence of certain predisposing factors result in pneumonias. These condi- tions are as under: 1. Altered consciousness. 2. Depressed cough and glottic reflexes. 3. Impaired mucociliary transport. 4. Impaired alveolar macrophage function. 5. Endo- bronchial obstruction. 6. Leucocyte dysfunctions. CLASSIFICATION. On the basis of the anatomic part of the lung parenchyma involved, pneumonias are traditionally classified into 3 main types: 1. Lobar pneumonia. 2. Bronchopneumonia (or Lobular pneumonia). 3. Interstitial pneumonia. A. BACTERIAL PNEUMONIA Bacterial infection of the lung parenchyma is the most common cause of pneumonia or consolidation of one or both the lungs. Two types of acute bacterial pneumonias are dis- tinguished—lobar pneumonia and broncho-lobular pneumonia, each with distinct etiologic agent and morphologic changes. 1. Lobar Pneumonia Lobar pneumonia is an acute bacterial infection of a part of a lobe, the entire lobe, or even two lobes of one or both the lungs. ETIOLOGY. Following types are described: 1. -
Legionellosis: Legionnaires' Disease/ Pontiac Fever
Legionellosis: Legionnaires’ Disease/ Pontiac Fever What is legionellosis? Legionellosis is an infection caused by the bacterium Legionella pneumophila, which acquired its name in 1976 when an outbreak of pneumonia caused by this newly recognized organism occurred among persons attending a convention of the American Legion in Philadelphia. The disease has two distinct forms: • Legionnaires' disease, the more severe form of infection which includes pneumonia, and • Pontiac fever, a milder illness. How common is legionellosis in the United States? An estimated 8,000 to 18,000 people get Legionnaires' disease in the United States each year. Some people can be infected with the Legionella bacterium and have mild symptoms or no illness at all. Outbreaks of Legionnaires' disease receive significant media attention. However, this disease usually occurs as a single isolated case not associated with any recognized outbreak. When outbreaks do occur, they are usually recognized in the summer and early fall, but cases may occur year-round. About 5% to 30% of people who have Legionnaires' disease die. What are the usual symptoms of legionellosis? Patients with Legionnaires' disease usually have fever, chills, and a cough. Some patients also have muscle aches, headache, tiredness, loss of appetite, and, occasionally, diarrhea. Chest X-rays often show pneumonia. It is difficult to distinguish Legionnaires' disease from other types of pneumonia by symptoms alone; other tests are required for diagnosis. Persons with Pontiac fever experience fever and muscle aches and do not have pneumonia. They generally recover in 2 to 5 days without treatment. The time between the patient's exposure to the bacterium and the onset of illness for Legionnaires' disease is 2 to 10 days; for Pontiac fever, it is shorter, generally a few hours to 2 days.