Azygos lobe

Azygos Lobe

The Azygos Lobe is an anatomical variation in the human lung that is not associated with any pathological condition. It is named after the Azygos vein, which it envelops. The azygos lobe is present in approximately 1% of the population.

Anatomy

The azygos lobe is formed when the right posterior cardinal vein, one of the precursors of the azygos vein, fails to migrate over the apex of the lung. Instead, it penetrates the lung, carrying along pleural layers that invaginate to form an accessory fissure. The azygos lobe is therefore not a true lobe, as it does not have its own bronchus.

Clinical Significance

The azygos lobe is usually an incidental finding on a chest radiograph or computed tomography (CT) scan. It is important for radiologists and surgeons to be aware of this anatomical variant to avoid misinterpretation of imaging or complications during thoracic surgery.

See Also

• Lung
• Azygos vein
• Human anatomy

External Links

‎

---

Translate: - East Asian 中文, 日本, 한국어, South Asian हिन्दी, தமிழ், తెలుగు, Urdu, ಕನ್ನಡ, Southeast Asian Indonesian, Vietnamese, Thai, မြန်မာဘာသာ, বাংলা
European español, Deutsch, français, Greek, português do Brasil, polski, română, русский, Nederlands, norsk, svenska, suomi, Italian
Middle Eastern & African عربى, Turkish, Persian, Hebrew, Afrikaans, isiZulu, Kiswahili,
Other Bulgarian, Hungarian, Czech, Swedish, മലയാളം, मराठी, ਪੰਜਾਬੀ, ગુજરાતી, Portuguese, Ukrainian