Aspiration of breast cysts.

In 1,364 cases of breast cyst aspiration reported in the literature, there is no note of a missed diagnosis of carcinoma. The author carried out needle aspiration in 80 patients with a definite mass in the breast as a therapeutic or diagnostic procedure.A diagnosis must be established for every definite mass in the breast and needle aspiration is a logical diagnostic procedure. If the needle encounters a solid mass, the mass must be removed for biopsy. If the needle encounters a cyst containing fluid, the fluid should be removed completely. A biopsy specimen then should be taken from the mass if (a) the fluid is bloody, (b) the mass does not entirely disappear, or (c) the mass recurs promptly. Adherence to these rules will keep the examining physician from missing a carcinoma within the cyst. Aspiration of breast cysts is a simple and safe diagnostic and therapeutic procedure that saves the patient distress and money.