现在一共有多少种癌症

根据WHO国际疾病分类编码 International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) ：
目前癌症的编码从C00一直到D48：
1 C00–D48 – Neoplasms
1.1 (C00–C14) Malignant neoplasms, lip, oral cavity and pharynx
1.2 (C15–C26) Malignant neoplasms, digestive organs
1.3 (C30–C39) Malignant neoplasms, respiratory system and intrathoracic organs
1.4 (C40–C41) Malignant neoplasms, bone and articular cartilage
1.5 (C43–C44) Malignant neoplasms, skin
1.6 (C45–C49) Malignant neoplasms, connective and soft tissue
1.7 (C50–C58) Malignant neoplasms, breast and female genital organs
1.8 (C60–C63) Malignant neoplasms of male genital organs
1.9 (C64–C68) Malignant neoplasms, urinary organs
1.10 (C69–C72) Malignant neoplasms, eye, brain and central nervous system
1.11 (C73–C75) Malignant neoplasms, endocrine glands and related structures
1.12 (C76–C80) Malignant neoplasms, secondary and ill-defined
1.13 (C81–C96) Malignant neoplasms, stated or presumed to be primary, of lymphoid, haematopoietic and related tissue
1.14 (C97) Malignant neoplasms of independent (primary) multiple sites
1.15 (D00–D09) In situ neoplasms
1.16 (D10–D36) Benign neoplasms
1.17 (D37–D48) Neoplasms of uncertain or unknown behaviour

考虑到每种癌症还有亚型，这个总数肯定要大于这里列的145种.
比如C22，肝胆系统癌症下又有C22.0-C22.9。
总数肯定是在200以上。
http://apps.who.int/classifications/icd10/browse/2010/en

全身上下，除了头发和指甲不会长癌，连毛囊都会长癌。