Master Ghon Complex with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Ghon Complex

Complex Gong
Picmonic
Ghon's complex is a lesion in the lungs which occurs from a primary tuberculosis infection. It refers to the combination of a caseating granuloma in the lungs (a Ghon focus) with lymphadenopathy of the ipsilateral hilar lymph nodes in that lung. When these findings are seen together, it is called a Ghon complex. It typically occurs after a primary infection and is often seen in children.
4 KEY FACTS
Calcified Focus of Infection
Calcified-cow Focused-eye

The first portion of a Ghon complex is the Ghon focus, which is a caseating granuloma of tuberculosis bacteria that will undergo calcification over time. This process is controlled by cell-mediated immunity. Eventually when the Ghon complex becomes fully calcified, it can be identified radiographically and is known as a Ranke complex.

Hilar Lymph Nodes
Hitler hit by Lymph-lime

To be considered a Ghon complex, the ipsilateral mediastinal hilar lymph nodes of the lung must be involved, since these lymph nodes receive drainage from the Ghon focus.

Primary Tuberculosis
1st Degree batting at TB-TV

The Ghon focus, which is part of the Ghon complex, occurs from a case of primary TB, where the bacillus causes an area of inflammation in the lung, leading to parenchymal caseating necrosis. Often, healing occurs and viable bacteria are enclosed in a calcified shell, allowing the infection to be reactivated later.

Typically in Children
Child

Children are non-immune hosts, so primary TB can progress to bacteremia and invade nearby lymph tissue. Furthermore, children may face the very serious complication known as miliary tuberculosis.

Unlock all 4 facts & definitions with Picmonic Free!

JOIN FREE

Take the Ghon Complex Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Medical (MD/DO) Classes & Exams with Picmonic:

Over 870,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medical (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medical (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medical (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.