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EDWIN R. FISHER, M.D.; JOHN GRUHN, M.D.

AMA Arch Surg. 1958;77(2):230-234.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Rhabdomyosarcoma is a well-recognized malignant mesenchymal neoplasm most frequently arising in the skeletal muscles of the extremities.^1-9 In addition, it may represent a component of a neoplasm in which other mesenchymal or mesodermal elements may be identified: the so-called malignant mesenchymoma, or mixed mesodermal tumor, which is most frequently observed in the genitourinary tract.¹⁰ Documented examples of rhabdomyosarcoma have also been noted in such unusual sites as the parotid gland, thyroid, adrenal, bronchus, lung, ovary, and cerebellum.^10-12 In some of the neoplasms in these latter structures other tissues have not been identified, and it has been suggested that they are derived from undifferentiated mesenchyme in such structures.¹⁰

Only a few examples of rhabdomyosarcoma arising in the gastrointestinal tract have been recorded. These have occurred in the tongue, oropharynx, esophagus, sites which normally possess skeletal muscle,¹⁰ and in bile ducts.³ Benenati¹³ referred to a . . . [Full Text PDF of this Article]

Author Affiliations
Pittsburgh

Departments of Pathology, University of Pittsburgh and Veterans' Administration Hospital.

Footnotes
Submitted for publication March 24, 1958.

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