Primary malignant melanomas of the nasal and paranasal cavities are extremely rare, and altogether only about 117 such cases have been reported in the world literature to date. Juvenile melanoma of the nasal fossa is even rarer and, with the exception of one case of which only the photomicrographs were published,1 no full report of such a case has been recorded up to now. The relatively exposed and accessible position of the nasal cavity should favor the early detection and treatment of neoplasms arising within it. For these reasons we deem it worthwhile to report two such cases. Report of Cases Case 1.—Malignant melanoma of the nose. A 57-year-old white waitress was first seen in the clinic on April 19, 1954, with a three-month history of right nasal obstruction and occasional nasal bleeding. Examination revealed a soft, dark-colored, polypoid mass within the right nasal fossa which bled readily on