Carcinoma of unknown primary site
The term carcinoma has also come to encompass malignant tumors composed of transformed cells whose origin or developmental lineage is unknown (see cancer of unknown primary origin; CUP), but that possess certain specific molecular, cellular, and histological characteristics typical of epithelial cells. This may include the production of one or more forms of cytokeratin or other intermediate filaments, intercellular bridge structures, keratin pearls, and/or tissue architectural motifs such as stratification or pseudo-stratification. ICD-10 code
(8010-8045) Epithelial neoplasms, NOS
(8050-8080) Squamous cell neoplasms
(M8070/3) Squamous cell carcinoma, NOS
(8090-8110) Basal cell neoplasms
(M8090/3) Basal cell carcinoma, NOS
(8120-8130) Transitional cell carcinomas
(8140-8380) Adenocarcinomas
(M8140/3) Adenocarcinoma, NOS
(M8142/3) Linitis plastica
(M8155/3) Vipoma
(M8160/3) Cholangiocarcinoma
(M8170/3) Hepatocellular carcinoma, NOS
(M8200/3) Adenoid cystic carcinoma
(M8312/3) Renal cell carcinoma
(M8312/3) Grawitz tumor
(8390-8420) Adnexal and Skin appendage Neoplasms
(8430-8439) Mucoepidermoid Neoplasms
(8440-8490) Cystic, Mucinous and Serous Neoplasms
(8500-8540) Ductal, Lobular and Medullary Neoplasms
(8550-8559) Acinar cell neoplasms
(8560-8580) Complex epithelial neoplasms

Carcinoma In situ
The term carcinoma in situ (or CIS) is a term for cells that are significantly abnormal but not cancer. They are thus not typically carcinomas. Pathogenesis
Cancer occurs when a single progenitor cell accumulates mutations and other changes in the DNA, histones, and other biochemical compounds that make up the cells genome. The cell genome controls the structure of the cells biochemical components, the biochemical reactions that occur within the cell, and the biological interactions of that cell with other cells.
Acquired progressive lymphangioma is a group of lymphangiomas that occur anywhere in young individuals, grow slowly, and present as bruise-like lesions or erythematous macules. : 597

See also
List of cutaneous conditions

References


== External links ==