Related Experiment Video
Updated: Feb 15, 2026

07:12
A Syngeneic Murine Model of Endometriosis using Naturally Cycling Mice
Published on: November 24, 2020
6.1K
Endometriosis presenting as a vaginal mass.
1Department of Obstetrics and Gynaecology, Logan Hospital, Meadowbrook, Queensland, Australia.
BMJ Case Reports
|January 26, 2018
Summary
A rare case of vaginal endometriosis presented as an anterior vaginal wall mass. Histology confirmed endometriosis, highlighting diagnostic challenges and the diverse locations of endometrial tissue.
Area of Science:
- Gynecologic Oncology
- Reproductive Medicine
- Surgical Pathology
Background:
- Endometriosis is a condition where endometrial-like tissue grows outside the uterus.
- Vaginal endometriosis is uncommon, often presenting as a palpable mass.
- Differential diagnosis for anterior vaginal wall masses includes urethral diverticulum and Gartner's duct cyst.
Observation:
- A 43-year-old woman presented with an anterior vaginal wall mass.
- Initial clinical and imaging assessments suggested urethral diverticulum or Gartner's duct cyst.
- Surgical excision and subsequent histological examination revealed an endometriotic cyst.
Findings:
- Histopathology confirmed the vaginal mass was an endometriotic cyst.
- The patient had no other symptoms of endometriosis.
- The patient remained asymptomatic three months post-excision.
Implications:
- This case underscores the varied clinical presentations of endometriosis.
- It highlights the importance of histological confirmation for accurate diagnosis of ectopic endometrial tissue.
- Widespread potential locations for endometriosis necessitate a broad differential diagnosis in gynecological and urological assessments.
Related Concept Videos
Atomic Mass
70.7K
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...
70.7K
Molar Mass
87.2K
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.
87.2K
Formula Mass and Mole Concepts of Compounds
82.7K
Formula Mass of Covalent Compounds
82.7K
Mass Concreting
363
Mass concreting refers to the process of placing large volumes of concrete, such as in gravity dams. The heat generated during the cement hydration process and differential cooling rates within the concrete mass can lead to a temperature gradient, which can result in thermal cracks in the concrete mass.
To reduce the risk of such cracking, the concrete mix may incorporate low-heat cement and pozzolans to reduce the temperature rise. Pre-cooled angular aggregates and water-reducing admixtures...
To reduce the risk of such cracking, the concrete mix may incorporate low-heat cement and pozzolans to reduce the temperature rise. Pre-cooled angular aggregates and water-reducing admixtures...
363
Mass and Weight
15.6K
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...
15.6K
Atomic Number and Mass Number
17.3K
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...
17.3K

