#tumor__tumour__neoplasm  an abnormal new mass of tissue that serves no purpose
  supertype:  #growth.illness  (pathology) an abnormal proliferation of tissue (as in a tumor)
  subtype:  #acanthoma__skin_tumor  a neoplasm originating in the epidermis
     subtype:  #keratoacanthoma  skin tumor that grows rapidly (especially in older people) and resembles a carcinoma but does not spread; it usually disappears spontaneously, often leaving a scar
  subtype:  #adenoma  a benign epithelial tumor of glandular origin
     subtype:  #fibroadenoma  benign and movable and firm and not tender tumor of the breast; common in young women and caused by high levels of estrogen
  subtype:  #angioma  a tumor consisting of a mass of blood or lymphatic vessels
     subtype:  #hemangioma__haemangioma  benign angioma consisting of a mass of blood vessels; some appear as birthmarks
        subtype:  #strawberry_hemangioma__strawberry_haemangioma  a congenital bright red superficial vascular tumor resembling a strawberry; tends to decrease in size during childhood
     subtype:  #lymphangioma  benign angioma consisting of a mass of lymphatic vessels
     subtype:  #spider_angioma__spider_nevus__vascular_spider  a dilation of superficial capillaries with a central red dot from which blood vessels radiate
  subtype:  #benign_tumor__benign_tumour__nonmalignant_tumor__nonmalignant_tumout__nonmalignant_neoplasm  a tumor that is not cancerous
     subtype:  #chondroma  a common benign tumor of cartilage cells
     subtype:  #myxoma  a benign tumor of connective tissue containing jellylike material
     subtype:  #osteoblastoma  benign tumor of bone and fibrous tissue; occurs in the vertebrae or femur or tibia or arm bones (especially in young adults)
     subtype:  #osteochondroma  benign tumor containing both bone and cartilage; usually occurs near the end of a long bone
  subtype:  #blastoma__blastocytoma__embryonal_carcinosarcoma__embryonalcarcinosarcoma  a tumor composed of immature undifferentiated cells
  subtype:  #brain_tumor__braintumor__brain_tumour__braintumour  a tumor in the brain
     subtype:  #glioblastoma__spongioblastoma  a fast-growing malignant brain tumor composed of spongioblasts; nearly always fatal
     subtype:  #glioma  a tumor of the brain consisting of neuroglia
  subtype:  #carcinoid  a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin
  subtype:  #celioma  an abdominal tumor
  subtype:  #enchondroma  benign slow-growing tumor of cartilaginous cells at the ends of tubular bones (especially in the hands and feet)
  subtype:  #fibroma  nonmalignant tumor of connective tissue
     subtype:  #fibroid_tumor__fibroidtumor  benign tumor containing fibrous tissue (especially in the uterus)
  subtype:  #granuloma  a tumor composed of granulation tissue resulting from injury or inflammation or infection
     subtype:  #gumma  a small rubbery granuloma that is characteristic of an advanced stage of syphilis
  subtype:  #lipoma__adipose_tumor__adiposetumor  a tumor consisting of fatty tissue
  subtype:  #malignant_tumor__malignanttumor__malignant_neoplasm__malignantneoplasm__metastatic_tumor  a tumor that is malignant and tends to spread to other parts of the body
     subtype:  #carcinosarcoma  a malignant neoplasm composed of carcinoma and sarcoma extensively intermixed
     subtype:  #cancer__malignant_neoplastic_disease  any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream
        subtype:  #lymphoma  a neoplasm of lymph tissue that is usually malignant; one of the four major types of cancer
           subtype:  #Hodgkin's_disease  a malignant disorder in which there is progressive (but painless) enlargement of lymph tissue followed by enlargement of the spleen and liver
        subtype:  #carcinoma  any malignant tumor derived from epithelial tissue; one of the four major types of cancer
           subtype:  #liver_cancer__livercancer__cancer_of_the_liver  malignant neoplastic disease of the liver usually occurring as a metastasis from another cancer; symptoms include loss of appetite and weakness and bloating and jaundice and upper abdominal discomfort
           subtype:  #adenocarcinoma__glandular_cancer__glandularcancer__glandular_carcinoma__glandularcarcinoma  malignant tumor originating in glandular epithelium
              subtype:  #prostate_cancer__prostatic_adenocarcinoma__prostaticadenocarcinoma  cancer of the prostate gland
           subtype:  #breast_cancer  cancer of the breast; one of the most common malignancies in women in the US
           subtype:  #carcinoma_in_situ__preinvasive_cancer__preinvasivecancer  a cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body
           subtype:  #colon_cancer__coloncancer  a malignant tumor of the colon; early symptom is bloody stools
           subtype:  #embryonal_carcinoma  malignant neoplasm of the testis
           subtype:  #endometrial_carcinoma__endometrialcarcinoma__endometrial_cancer__endometrialcancer  cancer of the uterine lining
           subtype:  #malignant_hepatoma__malignanthepatoma__hepatoma__hepatocarcinoma__hepatocellular_carcinoma  carcinoma of the liver
           subtype:  #lung_cancer  carcinoma of the lungs; one of the commonest forms of cancer
           subtype:  #mesothelioma  a rare form of carcinoma of the mesothelium lining lungs or abdomen or heart; usually associated with exposure to asbestos dust
           subtype:  #oat_cell_carcinoma__small_cell_carcinoma  highly malignant carcinoma composed of small round or egg-shaped cells with little cytoplasm; lung cancers are frequently oat cell carcinomas
           subtype:  #oral_cancer  malignant neoplasm of the lips of mouth; most common in men over the age of 60
           subtype:  #pancreatic_cancer  cancer of the pancreas
           subtype:  #seminoma__testicular_cancer  malignant tumor of the testis; usually occurring in older men
           subtype:  #skin_cancer  a malignant neoplasm of the skin
              subtype:  #cancroid__squamous_cell_carcinoma  the most common form of skin cancer
              subtype:  #epithelioma  a malignant tumor of the epithelial tissue
              subtype:  #malignant_melanoma__malignantmelanoma__melanoma  any of several malignant neoplasms (usually of the skin) consisting of melanocytes
           subtype:  #trophoblastic_cancer__trophoblasticcancer  malignant neoplasm of the uterus derived from the epithelium of the chorion
        subtype:  #leukemia__leukaemia__cancer_of_the_blood  malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
           subtype:  #acute_leukemia__acuteleukemia  rapidly progressing leukemia
              subtype:  #acute_lymphocytic_leukemia__acutelymphocyticleukemia__acute_lymphoblastic_leukemia__acutelymphoblasticleukemia  acute leukemia characterized by proliferation of immature lymphoblast-like cells in bone marrow, lymph nodes, spleen, and blood; most common in children
              subtype:  #acute_myelocytic_leukemia__acute_myeloid_leukemia__acutemyeloidleukemia  acute leukemia characterized by proliferation of granular leukocytes; most common in adolescents and young adults
           subtype:  #chronic_leukemia__chronicleukemia  slowly progressing leukemia
              subtype:  #chronic_lymphocytic_leukemia__chroniclymphocyticleukemia  chronic leukemia characterized by lymphoblast-like cells; more common in older men
              subtype:  #chronic_myelocytic_leukemia__myeloid_leukemia__myeloidleukemia  chronic leukemia characterized by granular leukocytes; more common in older people
           subtype:  #lymphocytic_leukemia__lymphocyticleukemia  leukemia characterized by enlargement of lymphoid tissues and lymphocytic cells in the circulating blood
              subtype:  #lymphoblastic_leukemia__lymphoblasticleukemia  a form of lymphocytic leukemia in which the abnormal cells in the circulating blood are almost totally lymphoblasts
           subtype:  #monocytic_leukemia__monocyticleukemia__monocytic_lukaemia__monocyticlukaemia__monoblastic_leukemia__monoblasticleukemia__monoblstic_leukaemia__histiocytic_leukemia__histiocyticleukemia__histiocytic_leukaemia__histiocyticleukaemia  leukemia characterized by the proliferation of monocytes and monoblasts in the blood
           subtype:  #myeloblastic_leukemia  a malignant neoplasm of blood-forming tissues; characterized by numerous myeloblasts in the blood stream
           subtype:  #myelocytic_leukemia__granulocytic_leukemia  a malignant neoplasm of blood-forming tissues; marked by proliferation of myelocytes and their presence in the blood
              subtype:  #acute_myelocytic_leukemia__acute_myeloid_leukemia__acutemyeloidleukemia  acute leukemia characterized by proliferation of granular leukocytes; most common in adolescents and young adults
              subtype:  #chronic_myelocytic_leukemia__myeloid_leukemia__myeloidleukemia  chronic leukemia characterized by granular leukocytes; more common in older people
        subtype:  #sarcoma  a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer
           subtype:  #chondrosarcoma  a malignant neoplasm of cartilage cells
           subtype:  #Ewing's_sarcoma__Ewing's_tumor__Ewing's_tumour__endothelial_myeloma__endothelialmyeloma  malignant tumor in bone marrow (usually in the pelvis or in long bones)
           subtype:  #Kaposi's_sarcoma  a sarcoma that starts with purplish spots on the feet and legs and spreads from the skin to lymph nodes and internal organs; a common manifestation of AIDS; "until 1980 Kaposi's sarcoma occurred almost exclusively with Jewish or Italian or black men"
           subtype:  #leiomyosarcoma  sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostate
           subtype:  #liposarcoma  sarcoma of fat cells
           subtype:  #myosarcoma  sarcoma of muscle tissue
           subtype:  #neurosarcoma__malignant_neuroma__malignantneuroma  a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue
           subtype:  #osteosarcoma__osteogenic_sarcoma  malignant bone tumor; most common in children and young adults where it tends to affect the femur
           subtype:  #rhabdomyosarcoma__rhabdosrcoma  a highly malignant neoplasm derived from striated muscle
              subtype:  #embryonal_rhabdomyosarcoma__embryonalrhabdomyosarcoma__embryonal_rhabdosarcoma__embryonalrhabdosarcoma  form of rhabdomyosarcoma occurring mainly in infants and children
              subtype:  #alveolar_rhabdomyosarcoma__alveolar_rhabdosarcoma  form of rhabdomyosarcoma occuring mainly in adolescents and young adults
              subtype:  #pleomorphic_rhabdomyosarcoma__pleomorphicrhabdomyosarcoma__pleomorphic_rhabdosarcoma  form of rhabdomyosarcoma that affects limb muscles of older adults
           subtype:  #Wilms'_tumor__Wilms_tumour__adenomyosarcoma__nephroblastoma__embryoma_of_the_kidney  malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass
     subtype:  #retinoblastoma  malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells
  subtype:  #meningioma  a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant
  subtype:  #myeloma  a tumor of the bone marrow (usually malignant) composed of cells normally found in bone marrow
     subtype:  #multiple_myeloma  myeloma that develops in several places at the same time
  subtype:  #myoma  a benign tumor composed of muscle tissue
     subtype:  #leiomyoma  benign tumor of smooth muscle (usually in the uterus or digestive tract)
     subtype:  #rhabdomyoma  benign rumor of striated muscle
  subtype:  #neurinoma  tumor (usually benign) of the sheath surrounding a nerve
  subtype:  #neuroblastoma  malignant tumor containing embryonic nerve cells; usually metastasizes quickly
  subtype:  #neuroepithelioma  malignant tumor of the neuroepithelium
  subtype:  #neurofibroma__neurilemoma  tumor of the fibrous covering of a peripheral nerve
  subtype:  #neuroma  any tumor derived from cells of the nervous system
  subtype:  #osteoma  a tumor of bone tissue
  subtype:  #papilloma__villoma__papillary_tumor__papillarytumor__papillary_tumour__papillarytumour  a benign epithelial tumor forming a rounded mass
  subtype:  #pheochromocytoma__phaeochromocytoma  a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension
  subtype:  #pinealoma  tumor of the pineal gland
  subtype:  #plasmacytoma  neoplasm of plasma cells (usually in bone marrow)
  subtype:  #psammoma__sand_tumor  a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sand-like particles
  subtype:  #teratoma  a tumor consisting of a mixture of tissues not normally found at that site

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