Related Experiment Video
Updated: Feb 5, 2026
11:42
Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells
Published on: April 7, 2017
9.9K
Epithelioid sarcoma arising from the temporal space: A case report
Yong Seek Kim1, Hyo Sung Kwak, Gyung Ho Chung
1Department of Radiology, Chonbuk National University Medical School and Hospital Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital Department of Pathology, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.
Medicine
|September 22, 2018
Summary
Epithelioid sarcoma, a rare soft tissue tumor, can occur in the head and neck. This case highlights its presentation in the temporal space, emphasizing the need for consideration in differential diagnoses of aggressive head lesions.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Epithelioid sarcoma is a rare malignant soft tissue tumor.
- Head and neck involvement is exceptionally uncommon.
- This report details a case originating in the temporal space.
Observation:
- A 35-year-old woman presented with a slow-growing temporal mass.
- Imaging revealed a lobulated, hypoechoic mass with internal vascularity (US) and heterogeneous signal intensity with necrosis and infiltration (MR).
- FDG-PET/CT showed intense uptake without metastasis.
Findings:
- Microscopic examination and immunohistochemistry confirmed epithelioid sarcoma.
- The tumor was surgically resected followed by radiation therapy.
- No recurrence was observed at 18 months post-treatment.
Implications:
- Epithelioid sarcoma should be considered in the differential diagnosis of aggressive temporal space lesions.
- Heterogeneous imaging findings, including central necrosis and infiltration, are key indicators.
- While rare, head and neck epithelioid sarcoma requires careful radiological assessment and pathological confirmation.
Related Concept Videos
01:25Space Trusses
1.3K
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. The space truss is widely used in various construction projects due to its adaptability and capacity to withstand complex loads.
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
1.3K
01:27State Space Representation
581
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
581
01:24Data Reporting and Recording
5.5K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.5K
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
01:29Space Trusses: Problem Solving
909
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
909
01:23Transfer Function to State Space
806
State-space representation is a powerful tool for simulating physical systems on digital computers, necessitating the conversion of the transfer function into state-space form. Consider an nth-order linear differential equation with constant coefficients, like those encountered in an RLC circuit. The state variables are selected as the output and its n−1 derivatives. Differentiating these variables and substituting them back into the original equation produces the state equations.
In an RLC...
In an RLC...
806