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Updated: Aug 12, 2026

Intramucosal Inoculation of Squamous Cell Carcinoma Cells in Mice for Tumor Immune Profiling and Treatment Response Assessment
Published on: April 22, 2019
Malignant intramuscular forearm tumor with overwhelming squamous element
H Orui1, M Yamakawa, A Ishikawa
1Department of Orthopaedic Surgery, Yamagata University School of Medicine, Yamagata, Japan. hoorui@med.id.yamagata-u.ac.jp
Abstract:
Squamous cell carcinoma (SCC) arising in the skeletal muscle is rare. A case of a 19-year-old female patient with an intramuscular forearm tumor showing a histopathologically overwhelming squamous element is presented. Microscopic examination revealed the classical features of SCC, including horn pearls, individual cell keratinization and intercellular bridge. A malignant spindle cell component was not detected. Neither evidence of another primary site nor skin lesion over the tumor was found and no metastatic lesion was detected in the 5 years since the appearance of the mass.
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