Altered expression of several CAMs, such as mucins [3,10], integrins [11], CD44 [12], L1CAM [13], cadherin [14], claudins [15], EpCAM [16], ALCAM [17] and METCAM/MUC18 [8,18,19], is linked to the malignant progression of ovarian carcinoma. Here, MCAM is linked to ovarian carcinoma.