THE following case of blue nevusis reported because of the unusual size of the nevus, its rapid growth and clinical characteristics of a melanoma.
A blue nevus1 resembles a melanoma but it is bluish gray or blueblack, round or oval and slightly elevated. It is firm to palpation and is most frequently situated on the face or on the extensor surfaces of the extremities. It is usually benign but occasionally undergoes sarcomatous changes. Clinically, the blue nevus of Jadassohn and Tièche may easily be confused with benign pigmented nevus, pigmented basal cell epithelioma and melanoma.
NIEDELMAN L. BLUE NEVUS OF JADASSOHN AND TIÈCHE: Report of a Case. Arch Derm Syphilol. 1946;53(3):285–287. doi:10.1001/archderm.1946.01510320075013
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