[Locating and treating nonpalpable breast tumors]

Between 1980-1984 a total of 40 female patients underwent excision of a radiologically diagnosed non-palpable breast tumor. The lesion was malignant in 42,9% (18 patients); 12 specimens showed invasive carcinoma and 6 carcinoma "in situ". "Clustered" microcalcifications were highly suggestive of a malignant lesion. The technique of surgical excision is simple, reliable, surgically not demanding and readily acceptable to the patient.