Art of TB and the Red Snappers

Art rendering depicting a school of hungry red snappers—symbolizing Mycobacterium tuberculosis—aggressively searching for a vulnerable host. The perfect host is an immunocompromised individual, where the body’s defenses are weakened, unable to fend off the invading bacteria. Those with HIV/AIDS, diabetes, malnutrition, or on immunosuppressive therapy are prime targets, providing an environment where TB can thrive, spread, and wreak havoc.
But why do these red snappers seek the upper lung fields?
Tuberculosis preferentially affects the upper lobes due to the higher oxygen tension in these regions. Mycobacterium tuberculosis is an obligate aerobe, meaning it thrives in oxygen-rich environments. The apices of the lungs provide the perfect setting for its growth, leading to the characteristic cavitary lesions of post-primary TB. Reduced lymphatic drainage and poor immune surveillance in the upper lobes further contribute to bacterial persistence and disease progression.
This visual metaphor captures the relentless nature of tuberculosis—waiting for the right opportunity to strike, exploiting the body’s vulnerabilities. A stark reminder of the ongoing battle between host immunity and opportunistic pathogens.
Ashley Davidoff, MD TheCommonVein.com (lungs-0795 – lo res)
Active TB and Cavitation

Art rendering depicting toothed red snappers aggressively consuming lung tissue, symbolizing the destructive process of tuberculosis (TB) cavitation in the left upper lobe (LUL). The acid-fast Mycobacterium tuberculosis bacilli, often called “red snappers,” are notorious for their ability to erode lung parenchyma, creating air-filled cavities that facilitate disease progression and transmission.
This artistic interpretation transforms a microscopic observation into a visceral, symbolic representation of TB’s destructive nature—bridging science, art, and storytelling to enhance understanding.
Ashley Davidoff, MD
TheCommonVein.com
(lungs-0792 – lo res)

Art rendering of a coronal CT scan illustrating biapical cavitation in tuberculosis (TB), with toothed red snappers surrounding and consuming the affected lung tissue. These aggressive fish symbolize Mycobacterium tuberculosis, known as “red snappers” due to their acid-fast staining properties. In TB, cavitary lesions result from necrotic destruction of lung parenchyma, creating air-filled spaces that enhance disease spread and transmission.
This fusion of radiology and artistic symbolism transforms a pathological process into a striking visual metaphor—bridging medical science with storytelling to deepen understanding.
Ashley Davidoff, MD
TheCommonVein.com
(lungs-0793 – lo res)

Art rendering illustrating the contrast between an immunocompetent and immunocompromised host in the battle against Mycobacterium tuberculosis. On the left, a strong, well-armed policeman represents a robust immune system, successfully driving away red snappers, symbolic of TB bacteria. On the right, a frail, disarmed policeman embodies a weakened immune system, surrounded by giant, menacing red snappers with bared teeth, illustrating the overwhelming infection in an immunocompromised host.
This fusion of medical science and artistic symbolism transforms a microscopic reality into a striking visual metaphor—bridging knowledge and storytelling to deepen understanding.
Ashley Davidoff, MD
TheCommonVein.com
(lungs-0794b01 – lo res)