Difference between funnel chest and pigeon chest

Written by Zhang Zhi Gong
Cardiothoracic Surgery
Updated on September 01, 2024
00:00
00:00

Pectus excavatum and pectus carinatum are both types of deformities of the anterior chest wall, with pectus excavatum being the most common deformity, accounting for 90% of all anterior chest wall deformities; the incidence of pectus carinatum is only one-fifth to one-sixth of that of pectus excavatum. The shapes of pectus excavatum and pectus carinatum are also completely different. Pectus excavatum appears as if a funnel were placed on the chest, with the funnel receding backward and downward. Therefore, patients with pectus excavatum, when lying down, can observe a depression in the front of their chest, which is even capable of holding a cup of water placed within this funnel-like depression. On the other hand, the deformity in pectus carinatum protrudes forward. One caves inward while the other protrudes forward, thus these two shapes are completely opposite.

Other Voices

doctor image
home-news-image
Written by Hu Xiao Cui
Nutrition Science
34sec home-news-image

Will chicken breast caused by calcium deficiency improve after calcium supplementation?

Children lacking Vitamin D can manifest various symptoms of rickets due to calcium deficiency, including pigeon chest, beading of the ribs, X-shaped legs, O-shaped legs, and square skull. As long as these are identified early, by supplementing with Vitamin D and calcium and ensuring comprehensive nutrition, children can return to normal growth and development. With age and appropriate physical exercise, these skeletal abnormalities can gradually improve and generally do not leave lasting effects.

doctor image
home-news-image
Written by Yao Li Qin
Pediatrics
53sec home-news-image

How to determine if a baby has pigeon chest

Pectus carinatum, commonly referred to as pigeon chest, is a manifestation of the skeletal sequelae of rickets in children, where the sternum protrudes outward. To examine for pigeon chest, one commonly uses the hand to feel from top to bottom; if the sternum is noticeably protruding from the surface, then pigeon chest may be considered. This condition is a sequelae caused by a deficiency of Vitamin D. If this is the case, it is essential to visit a pediatric care, growth and development, or general pediatric outpatient clinic, where a pediatrician can confirm the diagnosis. If pigeon chest is confirmed, blood tests to measure Vitamin D levels should be conducted for infants. For older children, appropriate calcium supplementation and exercises to expand the chest should also be considered.

doctor image
home-news-image
Written by Zhang Zhi Gong
Cardiothoracic Surgery
1min 8sec home-news-image

The differences between funnel chest and pigeon chest

Pectus excavatum and pectus carinatum are both types of chest wall deformities. Pectus excavatum is the most common form of chest wall deformity, accounting for over 90% of all anterior chest wall deformities, whereas pectus carinatum occurs much less frequently, roughly one-fifth the incidence of pectus excavatum. The main and most apparent difference is that, as the name suggests, pectus excavatum looks as if a funnel were placed in the chest, with the funnel pointing downwards and backwards. Thus, in patients or children with pectus excavatum, the sternum is indented inward and backward, pressing directly towards the spine. This indentation can compress the heart and lungs, potentially distorting and even displacing the heart to one side. In contrast, pectus carinatum involves the sternum protruding outward, resembling the chest of a chicken or a pigeon. Pectus excavatum is characterized by a backward indentation, while pectus carinatum protrudes forward—this is the most direct distinction.

doctor image
home-news-image
Written by Luo Peng
Thoracic Surgery
50sec home-news-image

Causes of pectus carinatum in children

The causes of pigeon chest in children mainly include two aspects, one is congenital and the other is acquired. Among them, congenital pigeon chest and funnel chest both involve hereditary factors. Additionally, if the central attachment point of the diaphragm in a child is underdeveloped, it can also cause pigeon chest, which is also a congenital cause. Moreover, the acquired causes mainly include malnutrition and some specific thoracic diseases. Malnutrition is often related to rickets. Acquired thoracic diseases involve some diseases of the thoracic cavity, for example, pyothorax leading to flat chest, chest wall deformity, as well as some congenital heart diseases, heart enlargement, which then compresses the sternum causing it.

doctor image
home-news-image
Written by Li Jiao Yan
Neonatology
1min 8sec home-news-image

What does chicken breast mean?

Pectus carinatum, commonly known as pigeon chest, is a frequent chest wall deformity characterized by a protruding sternum. It can occur similarly to rickets caused by vitamin D deficiency, where an indentation at the junction of the 6th to 8th ribs and the sternum causes the sternum to jut out, forming a pigeon chest. Pigeon chest is generally considered to be linked to genetics and is often caused by excessive growth of the ribs and costal cartilages, leading to deformities in the sternum and subsequently the ribs. Beyond causing psychological distress and affecting personality, pigeon chest can also impact respiratory and circulatory functions. In cases where the condition reaches a particular severity, surgical correction may be necessary. Correction during adolescence is ideal for mild to severe cases of pigeon chest. If parents notice any abnormalities in their child's chest wall, it is advisable to seek medical consultation to determine the need and approach for treatment.