Related Experiment Video
Updated: Feb 8, 2026
07:27
Implantation of Total Artificial Heart in Congenital Heart Disease
Published on: July 18, 2014
25.2K
Ewing Sarcoma Presenting as a Congenital Scalp Mass
Jacqueline A Haas1, Dahlia Rice1, Clinton S Morrison1
11 Division of Plastic Surgery, University of Rochester Medical Center, Rochester, NY, USA.
Summary
Congenital extraosseous Ewing sarcoma (EES) is extremely rare. This report details the first known case of a newborn presenting with congenital EES originating from the scalp.
Area of Science:
- Pediatric Oncology
- Skeletal System Malignancies
- Rare Tumors
Background:
- Ewing sarcoma is a highly malignant bone tumor.
- Extraosseous Ewing sarcoma (EES) arises from non-skeletal tissues.
- Congenital EES is exceptionally rare, with limited documented cases.
Purpose of the Study:
- To report the first known case of congenital extraosseous Ewing sarcoma of the scalp.
- To highlight the rarity of congenital EES.
- To contribute to the understanding of EES in newborns.
Main Methods:
- Case report.
- Clinical presentation review.
- Diagnostic imaging and histopathology confirmation.
Main Results:
- A congenital scalp mass was diagnosed as extraosseous Ewing sarcoma in a neonate.
- The tumor exhibited typical EES characteristics despite its congenital origin and location.
- This represents the first documented instance of congenital EES originating from the scalp.
Conclusions:
- Congenital EES, though rare, can occur in newborns.
- Scalp EES in neonates is a significant finding requiring prompt diagnosis and management.
- This case expands the known spectrum of EES presentation.
Related Concept Videos
01:03Rous Sarcoma Virus (RSV) and Cancer
6.4K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
6.4K
01:52Atomic Mass
70.4K
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which...
70.4K
01:54Molar Mass
87.0K
The identity of a substance is defined not only by the types of atoms or ions it contains but by the quantity of each type of atom or ion. For example, water, H2O, and hydrogen peroxide, H2O2, are alike in that their respective molecules are composed of hydrogen and oxygen atoms. However, because a hydrogen peroxide molecule contains two oxygen atoms, as opposed to the water molecule, which has only one, the two substances exhibit very different properties.
87.0K
02:56Formula Mass and Mole Concepts of Compounds
81.8K
Formula Mass of Covalent Compounds
81.8K
01:19Mass and Weight
15.4K
Mass and weight are often used interchangeably in everyday conversation. For example, medical records often show our weight in kilograms, but never in the correct units of newtons. In physics, however, there is an important distinction. Weight is the pull of the Earth on an object. It depends on the distance from the center of the Earth. Weight dramatically varies if we leave the Earth's surface, unlike mass, which does not vary with location. On the Moon, for example, the...
15.4K
01:12Atomic Number and Mass Number
16.7K
The number of protons in the nucleus of an atom is its atomic number (Z). This is the defining trait of an element. Its value determines the identity of the atom. For example, any atom that contains six protons is the element carbon and has the atomic number 6, regardless of how many neutrons or electrons it may have. A neutral atom must contain the same number of positive and negative charges, so the number of protons equals the number of electrons. This means that the atomic number also...
16.7K