These classifications are based on WHO/IARC guidelines. See [1] for further details.
Common Adult Cancers
Common Pediatric Cancers
WHO Classification of Tumours of the Central Nervous System (2016)
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Diffuse astrocytic and oligodendroglial tumors
- Diffuse astrocytoma, IDH-mutant
- Gemistocytic astrocytoma, IDH-mutant
- Diffuse astrocytoma, IDH-wildtype
- Diffuse astrocytoma, NOS
- Anaplastic astrocytoma, IDH-mutant
- Anaplastic astrocytoma, IDH-wildtype
- Anaplastic astrocytoma, NOS
- Glioblastoma, IDH-wildtype
- Giant cell glioblastoma
- Gliosarcoma
- Epithelioid glioblastoma
- Glioblastoma, IDH-mutant
- Glioblastoma, NOS
- Diffuse midline glioma, H3 K27M–mutant
- Oligodendroglioma, IDH-mutant and 1p/19q-codeleted
- Oligodendroglioma, NOS 69
- Anaplastic oligodendroglioma, IDH-mutant and 1p/19q-codeleted
- Anaplastic oligodendroglioma, NOS
- Oligoastrocytoma, NOS
- Anaplastic oligoastrocytoma, NOS
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Other astrocytic tumors
- Pilocytic astrocytoma
- Pilomyxoid astrocytoma
- Subependymal giant cell astrocytoma
- Pleomorphic xanthoastrocytoma
- Anaplastic pleomorphic xanthoastrocytoma
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Ependymal tumors
- Subependymoma
- Myxopapillary ependymoma
- Ependymoma
- Papillary ependymoma
- Clear cell ependymoma
- Tanycytic ependymoma
- Ependymoma, RELA fusion–positive
- Anaplastic ependymoma
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Other gliomas
- Chordoid glioma of the third ventricle
- Angiocentric glioma
- Astroblastoma
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Choroid plexus tumors
- Choroid plexus papilloma
- Atypical choroid plexus papilloma
- Choroid plexus carcinoma
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Neuronal and mixed neuronal–glial tumors
- Dysembryoplastic neuroepithelial tumour
- Gangliocytoma
- Ganglioglioma
- Anaplastic ganglioglioma
- Dysplastic cerebellar gangliocytoma (Lhermitte–Duclos disease)
- Desmoplastic infantile astrocytoma and ganglioglioma
- Papillary glioneuronal tumour
- Rosette-forming glioneuronal tumour
- Diffuse leptomeningeal glioneuronal tumour
- Central neurocytoma
- Extraventricular neurocytoma
- Cerebellar liponeurocytoma
- Paraganglioma
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Tumors of the pineal region
- Pineocytoma
- Pineal parenchymal tumour of intermediate differentiation
- Pineoblastoma
- Papillary tumour of the pineal region
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Embryonal tumors
- Medulloblastoma
- Medulloblastoma, NOS
- Medulloblastomas, genetically defined
- Medulloblastoma, WNT-activated
- Medulloblastoma, SHH-activated and TP53-mutant
- Medulloblastoma, SHH-activated and TP53-wildtype
- Medulloblastoma, non-WNT/non-SHH
- Medulloblastomas, histologically defined
- Medulloblastoma, classic
- Desmoplastic/nodular medulloblastoma
- Medulloblastoma with extensive nodularity
- Large cell / anaplastic medulloblastoma
- Embryonal tumour with multilayered rosettes, C19MC-altered
- Embryonal tumour with multilayered rosettes, NOS
- Other CNS embryonal tumors
- Medulloepithelioma
- CNS neuroblastoma
- CNS ganglioneuroblastoma
- CNS embryonal tumour, NOS
- Atypical teratoid/rhabdoid tumour
- CNS embryonal tumour with rhabdoid features
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Tumors of the cranial and paraspinal nerves
- Schwannoma
- Cellular schwannoma
- Plexiform schwannoma
- Melanotic schwannoma
- Neurofibroma
- Atypical neurofibroma
- Plexiform neurofibroma
- Perineurioma
- Hybrid nerve sheath tumors
- Malignant peripheral nerve sheath tumour (MPNST)
- MPNST with divergent differentiation
- Epithelioid MPNST
- MPNST with perineurial differentiation
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Meningiomas
- Meningioma
- Meningioma variants
- Meningothelial meningioma
- Fibrous meningioma
- Transitional meningioma
- Psammomatous meningioma
- Angiomatous meningioma
- Microcystic meningioma
- Secretory meningioma
- Lymphoplasmacyte-rich meningioma
- Metaplastic meningioma
- Chordoid meningioma
- Clear cell meningioma
- Atypical meningioma
- Papillary meningioma
- Rhabdoid meningioma
- Anaplastic (malignant) meningioma
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Mesenchymal, non-meningothelial tumors
- Solitary fibrous tumour / haemangiopericytoma
- Haemangioblastoma
- Haemangioma
- Epithelioid haemangioendothelioma
- Angiosarcoma
- Kaposi sarcoma
- Ewing sarcoma / peripheral primitive
- Neuroectodermal tumour
- Lipoma
- Angiolipoma
- Hibernoma
- Liposarcoma
- Desmoid-type fibromatosis
- Myofibroblastoma
- Inflammatory myofibroblastic tumour
- Benign fibrous histiocytoma
- Fibrosarcoma
- Undifferentiated pleomorphic sarcoma / malignant
- Fibrous histiocytoma
- Leiomyoma
- Leiomyosarcoma
- Rhabdomyoma
- Rhabdomyosarcoma
- Chondroma
- Chondrosarcoma
- Osteoma
- Osteochondroma
- Osteosarcoma
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Melanocytic tumors
- Meningeal melanocytosis
- Meningeal melanomatosis
- Meningeal melanocytoma
- Meningeal melanoma
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Lymphomas
- Diffuse large B-cell lymphoma of the CNS
- Corticoid-mitigated lymphoma
- Sentinel lesions
- Immunodeficiency-associated CNS lymphomas
- AIDS-related diffuse large B-cell lymphoma
- EBV+ diffuse large B-cell lymphoma, NOS
- Lymphomatoid granulomatosis
- Intravascular large B-cell lymphoma
- Miscellaneous rare lymphomas in the CNS
- Low-grade B-cell lymphomas
- T-cell and NK/T-cell lymphomas
- Anaplastic large cell lymphoma (ALK+/ALK–)
- MALT lymphoma of the dura
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Histiocytic tumors
- Langerhans cell histiocytosis
- Erdheim–Chester disease
- Rosai–Dorfman disease
- Juvenile xanthogranuloma
- Histiocytic sarcoma
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Germ cell tumors
- Germinoma
- Embryonal carcinoma
- Yolk sac tumour
- Choriocarcinoma
- Teratoma
- Mature teratoma
- Immature teratoma
- Teratoma with malignant transformation
- Mixed germ cell tumour
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Familial tumour syndromes
- Neurofibromatosis type 1
- Neurofibromatosis type 2
- Schwannomatosis
- Von Hippel–Lindau disease
- Tuberous sclerosis
- Li–Fraumeni syndrome
- Cowden syndrome
- Turcot syndrome
- Mismatch repair cancer syndrome
- Familial adenomatous polyposis
- Naevoid basal cell carcinoma syndrome
- Rhabdoid tumour predisposition syndrome
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Tumors of the sellar region
- Craniopharyngioma
- Adamantinomatous craniopharyngioma
- Papillary craniopharyngioma
Granular cell tumour of the sellar region
Pituicytoma 332 Spindle cell oncocytoma
Metastatic tumors
WHO Classification of Pathology and Genetics of Head and Neck Tumors
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Nasal cavity and paranasal sinuses
- Malignant epithelial tumours
- Squamous cell carcinoma
- Lymphoepithelial carcinoma
- Sinonasal undifferentiated carcinoma
- Adenocarcinoma
- Salivary gland-type carcinomas
- Neuroendocrine tumours
- Benign epithelial tumours
- Schneiderian papillomas
- Respiratory epithelial adenomatoid hamartoma
- Salivary gland-type adenomas
- Soft tissue tumours
- Malignant soft tissue tumours
- Borderline and LMP tumours
- Benign soft tissue tumours
- Tumours of bone and cartilage
- Malignant tumours
- Benign tumours
- Haematolymphoid tumours
- Neuroectodermal tumours
- Germ cell tumours
- Secondary tumours
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Nasopharynx
- Malignant epithelial tumours
- Nasopharyngeal carcinoma
- Papillary adenocarcinoma
- Salivary gland-type carcinomas
- Benign epithelial tumours
- Nasopharyngeal angiofibroma
- Haematolymphoid tumours
- Tumours of bone and cartilage
- Secondary tumours
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Hypopharynx, larynx and trachea
- Malignant epithelial tumours
- Squamous cell carcinoma
- Verrucous carcinoma
- Basaloid squamous cell carcinoma
- Papillary squamous cell carcinoma
- Spindle cell carcinoma
- Acantholytic squamous cell carcinoma
- Adenosquamous carcinoma
- Lymphoepithelial carcinoma
- Giant cell carcinoma
- Malignant salivary gland-type tumours
- Neuroendocrine tumours
- Adenocarcinoma, N.O.S.
- Myoepithelial carcinoma
- Carcinoma ex pleomorphic adenoma
- Carcinosarcoma
- Metastasizing pleomorphic adenoma
- Squamous cell carcinoma
- Small cell carcinoma
- Large cell carcinoma
- Lymphoepithelial carcinoma
- Sialoblastoma Benign epithelial tumours
- Pleomorphic adenoma
- Myoepithelioma
- Basal cell adenoma
- Warthin tumour
- Oncocytoma
- Canalicular adenoma
- Sebaceous adenoma
- Lymphadenomas
- Ductal papillomas
- Cystadenoma
- Soft tissue tumours
- Haemangioma
- Haematolymphoid tumours
- Secondary tumours
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Odontogenic tumours
- Odontogenic carcinomas
- Ameloblastic carcinomas
- Primary intraosseous squamous cell carcinomas
- Clear cell odontogenic carcinoma
- Ghost cell odontogenic carcinoma
- Odontogenic sarcomas
- Benign tumours
- Odontogenic epithelium with mature fibrous stroma,
- without odontogenic ectomesenchyme
- Ameloblastomas
- Squamous odontogenic tumour
- Calcifying epithelial odontogenic tumour
- Adenomatoid odontogenic tumour
- Keratocystic odontogenic tumour
- Odontogenic epithelium with odontogenic ectome-
- senchyme, with or without tissue formation
- Ameloblastic fibroma / fibrodentinoma
- Ameloblastic fibro-odontoma
- Odontoma, complex type
- Odontoma, compound type
- Odontoameloblastoma
- Calcifying cystic odontogenic tumour
- Dentinogenic ghost cell tumour
- Mesenchyme and/or odontogenic ectome- senchyme, with or without odontogenic epithelium
- Odontogenic fibroma
- Odontogenic myxoma / myxofibroma
- Cementoblastoma
- Epithelial precursor lesions
- Benign epithelial tumours
- Papilloma / papillomatosis
- Benign salivary gland-type tumours
- Malignant soft tissue tumours
- Inflammatory myofibroblastic tumour
- Benign soft tissue tumours
- Haematolymphoid tumours
- Tumours of bone and cartilage
- Mucosal malignant melanoma
- Secondary tumours
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Oral cavity and oropharynx
- Malignant epithelial tumours
- Squamous cell carcinoma
- Lymphoepithelial carcinoma
- Epithelial precursor lesions
- Proliferative verrucous leukoplakia
- Precancerous conditions
- Benign epithelial tumours
- Papillomas
- Granular cell tumour
- Keratoacanthoma
- Papillary hyperplasia
- Median rhomboid glossitis
- Salivary gland tumours
- Kaposi sarcoma
- Lymphangioma
- Ectomesenchymal chondromyxoid tumour
- Focal oral mucinosis
- Congenital granular cell epulis
- Haematolymphoid tumours
- Malignant melanoma
- Secondary tumours
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Salivary glands
- Malignant epithelial tumours
- Acinic cell carcinoma
- Mucoepidermoid carcinoma
- Adenoid cyctic carcinoma
- Polymorphous low-grade adenocarcinoma
- Epithelial-myoepithelial carcinoma
- Clear cell carcinoma, N.O.S.
- Basal cell adenocarcinoma
- Malignant sebaceous tumours
- Cystadenocarcinoma
- Low-grade cribriform cystadenocarcinoma
- Mucinous adenocarcinoma
- Oncocytic carcinoma
- Salivary duct carcinoma
- Bone related lesions
- Ossifying fibroma
- Fibrous dysplasia
- Osseous dysplasias
- Central giant cell lesion
- Cherubism
- Aneurysmal bone cyst
- Simple bone cyst
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Ear
- External ear
- Tumours of ceruminous glands
- Cylindroma
- Squamous cell carcinoma
- Embryonal rhabdomyosarcoma
- Fibrous dysplasia
- Osteoma and exostosis
- Angiolymphoid hyperplasia with eosinophilia
- Kimura disease
- Idiopathic pseudocystic chondromalacia
- Chondrodermatits nodularis chronica helicis
- Middle ear
- Cholesterol granuloma and cholesteatoma
- Adenoma
- Papillary tumours
- Choristoma
- Squamous cell carcinoma
- Meningioma
- Inner ear
- Vesticular schwannoma
- Neurofibromatosis type 2
- Lipoma of the internal auditory canal
- Haemangioma
- Endolymphatic sac tumour
- Haematolymphoid tumours
- Langerhans cell histiocytosis
- Secondary tumours
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Paraganglionic system
- Carotid body paraganglioma
- Jugulotympanic paraganglioma
- Vagal paraganglioma
- Laryngeal paraganglioma
WHO Classification of Tumors of the Urinary System and Male Genital Organs (2016)
WHO Classification of Tumors of Endocrine Organs
WHO Classification of Tumors of the Lung, Pleura, Thymus and Heart (2015)
WHO Classification of Tumors of Female Reproductive Organs (2014)
WHO Classification of Tumors of Soft Tissue and Bone (2013)
WHO Classification of Tumors of the Breast (2012)
Invasive carcinoma of no special type (invasive ductal carcinoma)
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Special subtypes
- Invasive lobular carcinoma
- Tubular carcinoma and cribriform carcinoma
- Carcinoma with medullary features
- Metaplastic carcinoma
- Carcinoma with apocrine differentiation
- Salivary gland/skin adnexal type tumors
- Adenoid cystic carcinoma
- Mucoepidermoid carcinoma
- Polymorphous carcinoma
- Mucinous carcinoma and carcinoma with
- Ssignet-ring-cell differentiation carcinoma with neuroendocrine features
- Invasive papillary carcinoma
- Invasive micropapillary carcinoma
- Inflammatory carcinoma
- Bilateral breast carcinoma and non-synchronous breast carcinoma
- Secretory carcinoma
- Oncocytic carcinoma
- Sebaceous carcinoma
- Lipid-rich carcinoma
- Glycogen-rich clear cell carcinoma
- Acinic cell carcinoma
Lobular neoplasia
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Intraductal proliferative lesions
- Usual ductal hyperplasia
- Columnar cell lesions
- Atypical ductal hyperplasia
- Ductal carcinoma in situ
Microinvasive carcinoma
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Intraductal papillary lesions
- Intraductal papilloma
- Intraductal papillary carcinoma
- Encapsulated papillary carcinoma
- Solid papillary carcinoma
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Benign epithelial proliferations
- Adenosis, sclerosing adenosis and
- apocrine adenosis
- Microglandular adenosis,
- atypical microglandular adenosis and
- microglandular adenosis with carcinoma
- Radial scar and complex sclerosing lesion
- Tubular adenoma
- Lactating adenoma
- Apocrine adenoma
- Ductal adenoma
- Pleomorphic adenoma
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Myoepithelial and epithelial–myoepithelial lesions
- Myoepithelial and epithelial–myoepithelial lesions
- Adenomyoepithelioma and adenomyoepithelioma with carcinoma
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Mesenchymal tumors
- Nodular fasciitis
- Benign vascular lesions
- Pseudoangiomatous stromal hyperplasia
- Myofibroblastoma
- Desmoid-type fibromatosis
- Inflammatory myofibroblastic tumour
- Lipoma
- Granular cell tumour and benign peripheral
- nerve-sheath tumour
- Angiosarcoma
- Liposarcoma
- Rhabdomyosarcoma
- Osteosarcoma
- Leiomyoma and leiomyosarcoma
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Fibroepithelial tumors
- Fibroadenoma
- Phyllodes tumour
- Hamartoma
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Tumors of the nipple
- Nipple adenoma
- Syringomatous tumour
- Paget disease
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Lymphoid and haematopoietic tumors
- Diffuse large B-cell lymphoma
- Burkitt lymphoma
- T-cell lymphoma
- Extranodal marginal zone lymphomas of mucosa-associated lymphoid tissue
- Follicular lymphoma
Metastases of extramammary malignancies to the breast
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Tumors of the male breast
- Gynaecomastia
- Carcinoma of the male breast
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Genetic susceptibility: inherited syndromes
- Inherited syndromes associated with an increased risk of breast cancer: Introduction
- BRCA1 and BRCA2 syndromes
- Li-Fraumeni syndrome
- Ataxia telangiectasia syndrome
- Cowden syndrome
- Lynch syndrome
- Other breast cancer-predisposing genes
WHO Classification of Tumours of the Digestive System (2010)
WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues (2008)
Miscellaneous Cancer Types
- Acute Lymphoblastic Leukaemia (ALL)
- Acute Myeloid Leukaemia (AML)
- Acute Megakaryoblastic Leukemia (AMKL)
- Adrenal cortical carcinoma
- Anal Cancer
- Angiomatoid Fibrous Histiocytoma
- Bile duct Cancer
- Bladder Cancer
- Bladder: Squamous cell carcinoma
- Bladder: Urothelial carcinomas
- Bone Cancer
- Adamantinoma
- Aneurysmal bone cysts
- Angiosarcoma
- Chondroblastoma
- Chondroma
- Chondromyxoid fibroma
- Chondrosarcoma
- Conventional Osteosarcoma
- Dedifferentiated chondrosarcoma
- Enchondroma
- Epithelioid hemangioendothelioma
- Fibrous dysplasia of the bone
- Giant cell tumour
- Haemangiomas and related lesions
- Osteoblastoma
- Osteochondroma
- Osteoid Osteoma
- Osteoma
- Osteosarcoma
- Periosteal chondroma
- Vascular Tumours
- Bowel Cancer
- Brain tumours
- Breast Cancer
- Ductal carcinoma
- Secretory Ductal Carcinoma
- Carcinoid Tumors
- Central Nervous System: Glioma
- Cervical Cancer
- Chordoma
- Choriocarcinoma
- Chronic lymphocytic leukaemia (CLL)
- Chronic myeloid leukaemia (CML)
- Clear Cell Hidradenoma of the Skin (CCH)
- Colorectal Cancer
- Dermatofibrosarcoma Protuberans
- Desmoid-type fibromatosis
- Digestive organs: Carcinoma of the gallbladder and extrahepatic bile ducts
- Digestive organs: Liver: Combined hepatocellular and cholangiocarcinoma
- Endometrial Cancer
- Esophagus
- adenocarcinoma
- Barrett's esophagus
- Eye Cancer
- Eye tumors: an overview
- Fallopian tube tumors: an overview
- Fibrogenesis imperfecta ossium
- Gallbladder Cancer
- Gastric Cancer
- Gastric Tumors: an overview
- Gestational trophoblastic tumours (GTT)
- Hairy cell leukaemia
- Head and Neck Cancer Squamous cell carcinoma (HNSCC)
- Ear: Endolymphatic Sac Tumor (ELST)
- Epidermoid carcinoma
- Iris Hamartomas
- Odontogenic tumor: Ameloblastoma
- Oral leukoplakia
- Pleomorphic salivary gland adenoma with ins(8)(q12;q11q11) TCEA1/PLAG1
- Pleomorphic salivary gland adenoma with inv(8)(q12q12) CHCHD7/PLAG1
- Retinoblastoma
- Retinoma
- Salivary gland tumors: an overview
- Thymus
- Thymoma
- Heart
- Cardiac Myxoma
- Hodgkin lymphoma
- Inflammatory fibroid polyps
- Intrahepatic cholangiocarcinoma
- Kidney Cancer
- Chromophobe renal cell carcinoma
- Clear cell renal cell carcinoma
- Metanephric adenoma
- Mucinous tubular and spindle cell carcinoma
- Nephroblastoma (Wilms tumor)
- Papillary adenoma
- Papillary renal cell carcinoma
- Renal cell carcinoma
- Renal Oncocytoma
- Laryngeal Cancer
- Laryngeal squamous cell carcinoma
- Liver adenoma
- Liver Cancer
- Fibrolamellar carcinoma
- Hepatoblastoma
- Hepatocellular carcinoma
- Nested stromal epithelial tumor
- Undifferentiated carcinoma
- Lung Cancer
- Non-small cell carcinoma
- Pleuropulmonary blastoma
- small cell Cancer
- Lymphangioleiomyoma
- Lymphangioleiomyomatosis
- Lymphoma
- Melanoma skin Cancer
- Melanoma
- Mesothelioma
- Molar pregnancy
- Mouth and oropharyngeal Cancer
- Multiple Myeloma
- Nasal and sinus Cancers
- Nasopharyngeal Cancer
- Nervous system tumours
- Peripheral neuroblastic tumours
- Neuroblastoma
- Ganglioneuroblastoma
- Ganglioneuroma
- Astrocytic tumors
- Ependymomas
- Medulloblastoma
- Meningioma
- Peripheral nerve sheath tumors
- Neuroendocrine tumors
- Phaeochromocytoma
- Neurofibroma
- Non Hodgkin lymphoma (NHL)
- Oesophageal Cancer
- Optic Nerve Glioma
- Oral squamous cell carcinoma
- Ovarian Cancer
- Choriocarcinoma
- Epithelial tumors
- Germ cell tumors
- Sex cord-stromal tumors
- Pancreatic Cancer
- Penile Cancer
- Pericytoma
- Pituitary Adenomas
- Posterior uveal melanoma
- Prostate Cancer
- Rectal Cancer
- Rhabdoid tumor
- Salivary gland Cancer
- Warthin's Tumors
- Skin Cancer
- Melanoma
- Cutaneous benign fibrous histiocytomas
- Cylindroma
- Pilomatricoma
- Spitz tumors
- Smooth muscle
- Intravenous leiomyomatosis
- Soft tissue tumors
- Aggressive angiomyxoma
- Alveolar rhabdomyosarcoma
- Alveolar soft part sarcoma
- Angiofibroma
- Clear cell sarcoma
- Desmoplastic small round cell tumor
- Elastofibroma
- Embryonal rhabdomyosarcoma
- Ewing's tumors/Primitive neurectodermal tumors (PNET)
- Extraskeletal myxoid chondrosarcoma
- Extraskeletal osteosarcoma
- Inflammatory myofibroblastic tumor
- Lipoblastoma
- Lipoma / benign lipomatous tumors
- Lipoma: Chondroid lipoma
- Liposarcoma / malignant lipomatous tumors
- Liposarcoma: Myxoid liposarcoma
- Low grade fibromyxoid sarcoma
- Malignant Myoepithelioma
- Rhabdomyosarcoma
- Soft Tissue Leiomyosarcoma
- Soft tissue chondroma
- Synovial sarcoma
- Hibernomas
- Squamous cell Cancer
- Stomach Cancer
- Testicular Cancer
- Germ cell tumors
- Spermatocytic seminoma
- Thyroid Cancer
- Anaplastic (undifferentiated) carcinoma
- Medullary carcinoma
- Oncocytic tumors
- Papillary Carcinoma with inv(7)(q21q34) AKAP9/BRAF
- Papillary carcinoma/Adenocarcinoma
- Uterine Cancer
- Carcinoma of the cervix
- Endometrial carcinoma
- Leiomyoma
- Vulva and Vagina tumors
- Vaginal Cancer
- Vulval Cancer