C50.3 - Malignant neoplasm of lower-inner quadrant of breast
C50.32 - Malignant neoplasm of lower-inner quadrant of breast, male
C50.321 - Malignant neoplasm of lower-inner quadrant of right male breast
C50.322 - Malignant neoplasm of lower-inner quadrant of left male breast
C50.329 - Malignant neoplasm of lower-inner quadrant of unspecified male breast