原发灶 meaning in Chinese

primary lesion

Metastatic malignant malignoma of unknown primary in the parotid one case report and literature review
腮腺内原发灶不明转移性恶黑1例报道及文献复习
Gamma knife treatment is aimed to control the primary lesion and offer effective precaution to the areas nearby
治疗针对性强，易于集中控制原发灶，并能对临近易受侵润区域进行有效预防。
Objective : malignant melanoma is not an uncommon malignancy in the head and neck regions but metastatic malanoma in the parotid was very rare
摘要目的：恶性黑色素瘤是头颈部常见的恶性肿瘤，腮腺内原发灶不明的转移性恶性黑色素瘤非常少见。
Of the 1 , 926 diagnosed with breast cancer for the first time , 221 or 11 . 5 % were diagnosed with a second new cancer - - not a spread of the original tumor - - after their breast cancer diagnosis
1926人被确诊为乳腺癌，其中有221人也就是11 . 5 %的患者又得了新的癌症，而不是原发灶的扩散。
Because lung cancer metastases in the early stage , appeared and county metastases can sometimes grow faster than primary tumors , metastases may be the first clinical manifestation in the primary there
由于肺癌的转移灶在早期即可出现，并县城转移灶有时可长得比原发灶快，因此转移灶的临床表现可先于原发灶出现。