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August 1958

Leiomyosarcoma of the Nasopharynx

AMA Arch Otolaryngol. 1958;68(2):211-213. doi:10.1001/archotol.1958.00730020219013

A previous report of a leiomyosarcoma of the nasopharynx cannot be found in the medical literature. Geschickter, in classifying sarcomas of the nasopharynx, listed two cases as myosarcomas.1 One of these was a rhabdomyosarcoma, and he has illustrated this tumor. The second case, which is listed as being myosarcoma, has no further explanation.

Nonepithelial malignant tumors or malignant connective tissue tumors are exceedingly rare. Stout collected all the nasopharyngeal tumors up to 1941, and leiomyosarcoma is not mentioned.2 The Atlas of Otolaryngic Pathology from the Armed Forces Institute of Pathology does not list this tumor.3

The only smooth muscle normally found in the nasopharynx is in the structure of the blood-vessel walls. Boyd feels the muscular walls of blood vessels are immune to myoma formation.4 This is difficult to understand in that myomatous tumors have been found in areas of the body which are normally devoid

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