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WHO Classification of Tumours
WHO Classification of Tumours of the Lung, Pleura, Thymus and Heart
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Travis WD, Brambilla E, Müller-Hermelink HK, Harris CC (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Lung, Pleura, Thymus and Heart.
3rd Edition
IARC Press: Lyon 2004





C37 - Thymus:
 
The number attached to each tumour is the ICD-O morphology code of the International Classification of Diseases for Oncology (ICD-O) [1] and the Systematized Nomenclature of Medicine (http://snomed.org).
/0 benign tumours
/1 unspecified, borderline or uncertain behaviour
/2 in situ carcinomas
/3 malignant tumours.

1. Fritz A, Percy C, Jack A, Shanmuragatnam K, Sobin LH, Parkin DM, Whelan S (Eds) International Classification of Diseases for Oncology. World Health Organization: Geneva 2000





Thymoma
    8580/1 Thymoma, NOS
        8581/1 Thymoma, type A, NOS
        8582/1 Thymoma, type AB, NOS
        8583/1 Thymoma, type B1, NOS
        8584/1 Thymoma, type B2, NOS
        8585/1 Thymoma, type B3, NOS
        8581/1 Micronodular thymoma with lymphoid stroma
        8580/1 Metaplastic thyoma
        8580/1 Microscopic thymoma
        8580/1 Sclerosing thymoma

Thymic carcinoma
    8071/3 Squamous cell carcinoma, keratinizing, NOS
    8123/3 Basaloid carcinoma
    8430/3 Mucoepidermoid carcinoma
    8082/3 Lymphoepithelial carcinoma
    8980/3 Carcinosarcoma, NOS
    8310/3 Clear cell adenocarcinoma, NOS
    8140/3 Adenocarcinoma, NOS
    8050/3 Papillary carcinoma, NOS
    8020/3 Undifferentiated carcinoma

Neuroendocrine tumours of the thymus
    8240/3 Neuroendocrine tumor G1 (NET G1) / Carcinoid
    8249/3 Neuroendocrine tumor G2 (NET G2)
    8013/3 Large cell neuroendocrine carcinoma
    8041/3 Small cell neuroendocrine carcinoma

Germ cell tumours (GCT) of the mediastinum
    9061/3 Seminoma, NOS
    9070/3 Embryonal carcinoma, NOS
    9071/3 Yolk sac tumor
    9100/3 Choriocarcinoma, NOS
    9072/3 Polyembryoma

Mediastinal lymphomas and haematopoietic neoplasms
    B-cell lymphomas
        9679/3 Primary mediastinal (thymic) large B-cell lymphoma
        9699/3 Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma)
    T-cell lymphoma
        9837/3 T Lymphoblastic leukaemia/lymphoma
        9714/3 Anaplastic large cell lymphoma, ALK positive
        9650/3 Classical Hodgkin lymphoma
    Histiocytic tumours
        9751/3 Langerhans cell histiocytosis
        9756/3 Langerhans cell sarcoma
        9755/3 Histiocytic sarcoma
        9750/3 Malignant histiocytosis
    Dendritic cell tumours
        9758/1 Follicular dentritic cell tumour
        9758/3 Follicular dendritic cell sarcoma
        9757/1 Interdigitating dentritic cell tumour
        9757/3 Interdigitating dendritic cell sarcoma
    9930/3 Myeloid sarcoma

Mesenchymal tumours of the thymus and mediastinum
    8850/0 Lipoma, NOS
    8850/3 Liposarcoma, NOS
    8815/0 Solitary fibrous tumor
    8900/3 Rhabdomyosarcoma, NOS
    9040/3 Synovial sarcoma, NOS

Ectopic tumours of the thymus