Related Experiment Video
Updated: Aug 3, 2025

Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules
Published on: May 23, 2015
A 21-Year-Old Hispanic Woman Presenting With Cutaneous and Pulmonary Nodules
Javaria Tehzeeb1, Vadim Divilov2, Arkar Htoo3
1Department of Internal Medicine, Albany Medical Center, Albany, NY.
Case Presentation:
A 21-year-old Hispanic woman with no significant medical history presented with complaints of progressive skin lesions for 3 months, associated with dyspnea and scant hemoptysis for 1 week. She initially developed painless subcutaneous nodules on her right forearm, which progressed to superficial ulcers and gradually spread to involve bilateral arms, thighs, chest, abdomen, and gluteal region. The lesions spared the head, neck, palms, and soles. She also reported fatigue and a 20-pound weight loss. An initial outpatient punch biopsy from a leg ulcer revealed nonspecific granulomatous inflammation treated with prednisone and hydroxychloroquine without improvement. A review of systems was negative for fever, chills, night sweats, arthralgias, lymphadenopathy, mucosal ulceration, or bleeding. She was born in El Salvador but had spent most of her life in New York. She did not report any recent international travel or sick contacts. There was no personal or family history of immunodeficiency or malignancies.
Related Concept Videos
Pulmonary Tuberculosis II
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...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis I
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...
Pulmonary Tuberculosis IV
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...
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Pulmonary Tuberculosis V
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...

