Medullary cancer
Cancer Can"cer, n. [L. cancer, cancri, crab, ulcer, a sign of the zodiac; akin to Gr. karki`nos, Skr. karka[.t]a crab, and prob. Skr. karkara hard, the crab being named from its hard shell. Cf. {Canner}, {Chancre}.] 1. (Zo["o]l.) A genus of decapod Crustacea, including some of the most common shore crabs of Europe and North America, as the rock crab, Jonah crab, etc. See {Crab}. [1913 Webster]

2. (Astron.) (a) The fourth of the twelve signs of the zodiac. The first point is the northern limit of the sun's course in summer; hence, the sign of the summer solstice. See {Tropic}. (b) A northern constellation between Gemini and Leo. [1913 Webster]

3. (Med.) Formerly, any malignant growth, esp. one attended with great pain and ulceration, with cachexia and progressive emaciation. It was so called, perhaps, from the great veins which surround it, compared by the ancients to the claws of a crab. The term is now restricted to such a growth made up of aggregations of epithelial cells, either without support or embedded in the meshes of a trabecular framework. [1913 Webster]

Note: Four kinds of cancers are recognized: (1) {Epithelial cancer, or Epithelioma}, in which there is no trabecular framework. See {Epithelioma}. (2) {Scirrhous cancer, or Hard cancer}, in which the framework predominates, and the tumor is of hard consistence and slow growth. (3) {Encephaloid cancer}, {Medullary cancer}, or {Soft cancer}, in which the cellular element predominates, and the tumor is soft, grows rapidy, and often ulcerates. (4) {Colloid cancer}, in which the cancerous structure becomes gelatinous. The last three varieties are also called {carcinoma}. [1913 Webster]

{Cancer cells}, cells once believed to be peculiar to cancers, but now know to be epithelial cells differing in no respect from those found elsewhere in the body, and distinguished only by peculiarity of location and grouping.

{Cancer root} (Bot.), the name of several low plants, mostly parasitic on roots, as the beech drops, the squawroot, etc.

{Tropic of Cancer}. See {Tropic}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • medullary thyroid cancer — Cancer that develops in C cells of the thyroid. The C cells make a hormone (calcitonin) that helps maintain a healthy level of calcium in the blood …   English dictionary of cancer terms

  • Cancer — Can cer, n. [L. cancer, cancri, crab, ulcer, a sign of the zodiac; akin to Gr. karki nos, Skr. karka[.t]a crab, and prob. Skr. karkara hard, the crab being named from its hard shell. Cf. {Canner}, {Chancre}.] 1. (Zo[ o]l.) A genus of decapod… …   The Collaborative International Dictionary of English

  • Cancer cells — Cancer Can cer, n. [L. cancer, cancri, crab, ulcer, a sign of the zodiac; akin to Gr. karki nos, Skr. karka[.t]a crab, and prob. Skr. karkara hard, the crab being named from its hard shell. Cf. {Canner}, {Chancre}.] 1. (Zo[ o]l.) A genus of… …   The Collaborative International Dictionary of English

  • Cancer root — Cancer Can cer, n. [L. cancer, cancri, crab, ulcer, a sign of the zodiac; akin to Gr. karki nos, Skr. karka[.t]a crab, and prob. Skr. karkara hard, the crab being named from its hard shell. Cf. {Canner}, {Chancre}.] 1. (Zo[ o]l.) A genus of… …   The Collaborative International Dictionary of English

  • medullary breast carcinoma — A rare type of breast cancer that often can be treated successfully. It is marked by lymphocytes (a type of white blood cell) in and around the tumor that can be seen when viewed under a microscope …   English dictionary of cancer terms

  • Medullary thyroid cancer — Classification and external resources Micrograph of medullary thyroid carcinoma. H E stain. ICD 10 …   Wikipedia

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  • Medullary breast carcinoma — is a rare type of breast cancer that often can be treated successfully. It is marked by lymphocytes (a type of white blood cell) in and around the tumor that can be seen when viewed under a microscope. This is the only breast cancer associated… …   Wikipedia

  • Medullary carcinoma — Classification and external resources MeSH D018276 Medullary carcinoma refers to one of several tumors. The most common types are: Medullary thyroid cancer Medullary carcinoma of the breast Medullary carcinoma is a …   Wikipedia

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