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Updated: Jan 29, 2026

Analysis of Single-cell Gene Transcription by RNA Fluorescent In Situ Hybridization FISH
Published on: October 7, 2012
USP6 Gene Rearrangement by FISH Analysis in Cranial Fasciitis: A Report of Three Cases
Christian Salib1, Morris Edelman2, Joshua Lilly3
1Department of Pathology, Westchester Medical Center at New York Medical College, 100 Woods Rd., Valhalla, NY, 10543, USA. christian.salib@wmchealth.org.
Cranial fasciitis (CF), a rare benign tumor, shares similarities with nodular fasciitis (NF). This study found USP6 gene rearrangements in two of three CF cases, suggesting a potential diagnostic marker.
Area of Science:
- Oncology
- Genetics
- Pediatric Pathology
Background:
- Cranial fasciitis (CF) is a rare, benign myofibroblastic tumor affecting cranial soft and hard tissues, primarily in children.
- CF presents as a rapidly growing, painless nodule and can cause bone erosion, mimicking malignant conditions.
- CF is considered a variant of nodular fasciitis (NF), which is associated with USP6 gene rearrangements.
Observation:
- This study investigated the molecular profile of three pediatric cranial fasciitis cases.
- Fluorescence in-situ hybridization (FISH) was used to detect gene rearrangements.
- Two of the three CF cases exhibited USP6 gene rearrangements.
Findings:
- The ubiquitin-specific protease 6 (USP6) gene rearrangement was identified in 66.7% of the studied cranial fasciitis cases.
- The findings suggest a molecular link between cranial fasciitis and nodular fasciitis.
- One case did not show the rearrangement, possibly due to sample decalcification.
Implications:
- USP6 gene rearrangement may serve as a diagnostic adjunct for challenging cranial fasciitis cases.
- Further research into USP6 alterations in CF is warranted.
- Identifying molecular markers can improve diagnostic accuracy and differentiate CF from sarcomas.
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