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Salivary glands

Sarcomas

Undifferentiated sarcoma

Reviewer: Adriana Handra-Luca, M.D. (see Reviewers page)
Revised: 12 March 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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● <75 cases reported at this site
● Most frequent salivary gland sarcomas are rhabdomyosarcoma, malignant fibrous histiosarcoma, malignant schwannoma, fibrosarcoma
● Diagnosis of exclusion (no primary lesion elsewhere)

Case reports
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● 2 year old boy with parotid mass - gangliorhabdomyosarcoma (Case of the Week #268)
● 6 year old boy with parotid gland undifferentiated pleomorphic sarcoma (Head Neck 2008;30:970)
● 53 year old man with parotid tumor (Arch Pathol Lab Med 2002;126:849)
● 59 year old man with acinic cell carcinoma with undifferentiated spindle cell transformation.(J Laryngol Otol 1994;108:902)

Treatment
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● Chemotherapy, radiotherapy

Gross images
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Pink tan soft tumor

Case of the Week #268

Micro description
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● Low grade/fibromyxoid sarcoma

Micro images
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Tumor with osseous metaplasia

Primitive undifferentiated sarcoma

Case of the Week #268:

Differential diagnosis
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● Malignant mixed tumor
● Spindle cell carcinoma

Additional references
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● Int J Pediatr Otorhinolaryngol 2011;75:558, Cancer 1986;58:1305

End of Salivary glands > Sarcomas > Undifferentiated sarcoma

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