Related Experiment Video
Updated: Feb 21, 2026

09:45
Author Spotlight: Advancing Syphilis Research — Innovations in Treponema pallidum Cultivation and Genetic Engineering
Published on: January 24, 2025
7.1K
Secondary Syphilis with Pulmonary Involvement
Azusa Ohta1,2, Norihiro Furusyo3, Yasuhiro Kishihara2
1Department of General Internal Medicine, Kyushu Central Hospital, Japan.
Internal Medicine (Tokyo, Japan)
|October 13, 2017
Summary
Secondary syphilis can manifest with lung nodules, a rare presentation. This case highlights the importance of considering syphilis in patients with chest pain and skin rash, even with pulmonary findings.
Area of Science:
- Infectious Diseases
- Pulmonology
- Dermatology
Background:
- Secondary syphilis is a systemic infection caused by Treponema pallidum.
- Pulmonary involvement in secondary syphilis is uncommon but can mimic other lung diseases.
Observation:
- A 39-year-old Japanese man presented with chest pain and a rash on his hands and feet.
- Thoracic computed tomography (CT) revealed multiple nodular shadows in the left lower lung lobe.
- The patient developed a rash on his forearms, attributed to amoxicillin treatment.
Findings:
- Diagnosis of secondary syphilis was confirmed by clinical presentation and positive serologic tests.
- Treatment with minocycline led to the contraction of lung nodular shadows over five months.
- The case confirmed secondary syphilis with significant pulmonary involvement.
Implications:
- This case underscores the diverse clinical manifestations of secondary syphilis.
- It emphasizes the need for a high index of suspicion for syphilis in patients with unexplained pulmonary nodules and dermatological symptoms.
- Prompt diagnosis and treatment are crucial for resolving pulmonary lesions and preventing complications.
Related Concept Videos
Pulmonary Tuberculosis II
1.7K
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
1.7K
Pulmonary Tuberculosis III
1.2K
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
1.2K
Pulmonary Tuberculosis IV
559
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
559
Sexually Transmitted Infections
1.3K
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
1.3K
Pulmonary Tuberculosis I
1.0K
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
1.0K
Pulmonary Tuberculosis V
660
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
660

