… cases of spindle cell RMS in infants less than 1-year old.6, 9-… head and neck locations (29%)
(orbital, base of tongue, neck) … a single case of extremity spindle cell RMS, our institution …

… positive) with primary tumor in head and neck and brain metastases. This patient died …
spindle cell RMS accounts for 10% of RMS cases [6]). In older children and adults, spindle cell …

… Immunohistochemistry revealed strong desmin expression in all cases (A: Ovoid cell areas
in Case 6; B: Spindle cell storiform area in Case 5). (C) Less diffuse desmin reactivity in Case …

… Spindle cell/sclerosing rhabdomyosarcoma (RMS) is an … other spindle cell malignant
tumors in the head and neck. … 40–50% positivity [Figure 6]. Correlating the history, clinical, …

… and genetic aspects which are separated from the other three categories [6]. … Both spindle
cell and sclerosing variants involve the head and neck frequently [22, 23] and according to the …

… : 2 alveolar; 3 spindle cell/sclerosing, 6 embryonal RMS, and … of spindle cell/sclerosing
rhabdomyosarcoma with TFCP2 … a diagnosis of spindle cell/sclerosing rhabdomyosarcoma, one …

… or peripheral stem cell transplantation survived over 6 and 12 … the head and neck area,
although pediatric spindle cell RMS … and adult spindle cell RMS in the head and neck have a …

… aggressive ‘epithelioid rhabdomyosarcoma’ entity [6]. To … spindle cell components is the
most commonly identified pattern but a minority of cases are completely epithelioid, round cell or …

… neck locations, being associated with a more favorable prognosis [4, 5]. A subset of spindle
cell rhabdomyosarcoma … even less common sclerosing type rhabdomyosarcoma [6]. As both …

… % arising in the head and neck region. Primary intraosseous rhabdomyosarcomas are however
… We report an interesting case of a primary spindle cell RMS affecting the mandible of a 6-…