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Related Concept Videos

Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
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Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Rocky Mountain Spotted Fever01:26

Rocky Mountain Spotted Fever

Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Secondary Lymphoid Organs01:15

Secondary Lymphoid Organs

Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
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Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
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Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.

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Related Experiment Videos

Sarcoidosis: a less common presentation.

Jessica Cemlyn-Jones1, Fernanda Gamboa, Luísa Teixeira

  • 1Hospitais da Universidade de Coimbra. jcemlynjones@yahoo.com

Revista Portuguesa De Pneumologia
|April 30, 2009
PubMed
Summary
This summary is machine-generated.

Sarcoidosis, a diverse inflammatory disease, often involves the lungs. This case highlights asymptomatic stage III pulmonary sarcoidosis that spontaneously resolved without treatment.

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Area of Science:

  • Pulmonology
  • Pathology
  • Radiology

Background:

  • Sarcoidosis commonly presents with pulmonary involvement, characterized by bilateral hilar lymphadenopathy and infiltrates on chest radiographs.
  • The clinical and radiographic spectrum of sarcoidosis is broad, necessitating careful diagnosis.

Observation:

  • A young female patient presented with multiple bilateral nodular shadows on chest radiography.
  • Surgical lung biopsy confirmed non-necrotizing granulomas, consistent with sarcoidosis.

Findings:

  • The patient had asymptomatic stage III pulmonary sarcoidosis with normal lung function and no extrathoracic manifestations.
  • High-resolution CT scan follow-up revealed spontaneous remission of the disease within one year, without intervention.

Implications:

  • This case underscores the possibility of spontaneous remission in sarcoidosis, even in advanced stages.
  • It suggests that vigilant monitoring may be sufficient for select asymptomatic patients, potentially avoiding unnecessary treatments.