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Updated: Aug 5, 2026
07:18
Isolation and Characterization of Tumor-initiating Cells from Sarcoma Patient-derived Xenografts
Published on: June 13, 2019
Summary
Monophasic synovial sarcoma, a tumor with a single cell type, can resemble other sarcomas. Further tissue sampling is crucial for accurate diagnosis, as light microscopy alone may not suffice.
Area of Science:
- Oncology
- Pathology
- Histology
Background:
- Synovial sarcoma is typically a biphasic tumor, containing both spindle and epithelial cells.
- Monophasic synovial sarcoma presents a diagnostic challenge due to its single cell type, mimicking other spindle cell sarcomas.
- Distinctive reticulin patterns in monophasic tumors can suggest synovial sarcoma.
Purpose of the Study:
- To explore the concept and diagnostic criteria for monophasic synovial sarcoma.
- To highlight the importance of identifying features suggestive of synovial sarcoma in monophasic tumors.
- To emphasize the necessity of extensive sampling for definitive diagnosis.
Main Methods:
- Histopathological examination of tumor tissue.
- Analysis of reticulin staining patterns.
- Comparison with other spindle cell sarcomas.
- Evaluation of diagnostic utility of light microscopy.
Main Results:
- A monophasic tumor with epithelioid spindle cells and an atypical reticulin pattern may indicate synovial sarcoma.
- Light microscopy alone is insufficient for definitive diagnosis of monophasic synovial sarcoma.
- The term 'monophasic synovial sarcoma' is valuable as a diagnostic consideration prompting further investigation.
Conclusions:
- Monophasic synovial sarcoma requires careful histopathological evaluation and extensive sampling.
- The presence of suggestive features should prompt a search for the pathognomonic biphasic pattern.
- Definitive diagnosis relies on identifying characteristic patterns, often requiring multiple tissue sections.
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