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epithelium
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- Title:
- Colonoscopy, Adenocarcinoma
- Description:
- The image on the left demonstrates numerous adenomas (> 100 observed during the colonoscopy). The image on the right (yellow arrows) is suspicious for colon cancer and was biopsied. Summary of Pathology Report: Moderately differentiated adenocarcinoma with focal mucinous adenocarcinoma differentiation. Adenocarcinoma is a cancer of an epithelium that originates in glandular tissue. Epithelial tissue includes, but is not limited to, the surface layer of skin, glands, and a variety of other tissue that lines the cavities and organs of the body. Epithelium can be derived embryologically from ectoderm, endoderm or mesoderm. To be classified as Adenocarcinoma, the cells do not necessarily need to be part of a gland, as long as they have secretory properties. Well differentiated adenocarcinomas tend to resemble the glandular tissue that they are derived from, while poorly differentiated adenocarcinomas may not. By staining the cells from a biopsy, a pathologist can determine whether the tumor is an adenocarcinoma or some other type of cancer. Adenocarcinomas can arise in many tissues of the body due to the ubiquitous nature of glands within the body. While each gland may not be secreting the same substance, as long as there is an exocrine function to the cell, it is considered glandular and its malignant form is therefore named adenocarcinoma. Endocrine gland tumors, such as a VIPoma, an insulinoma, a pheochromocytoma, etc., are typically not referred to as adenocarcinomas, but rather, are often called neuroendocrine tumors. If the glandular tissue is abnormal, but benign, it is said to be an adenoma. Benign adenomas typically do not invade other tissue and rarely metastasize. Malignant adenocarcinomas invade other tissues and often metastasize given enough time to do so.
- Keyword:
- Condylomata Acuminata, Cancer, epithelium
- Subject:
- Condylomata Acuminata, Skin Diseases, Virus Diseases, Skin and Connective Tissue Diseases, Sexually Transmitted Diseases, Viral, Skin Diseases, Infectious, Papillomavirus Infections, Skin Diseases, Viral, DNA Virus Infections, Sexually Transmitted Diseases, Tumor Virus Infections
- Creator:
- James Carlson, PhD, PA-CRosalind Franklin University of Medical Science
- Publisher:
- Rosalind Franklin University of Medical Science
- Language:
- English
- Copyright Holder:
- Rosalind Franklin University School of Medicine
- Rights:
- http://www.i-human.com/service-agreement-print
- Identifier:
- 1377
- Title:
- Duodenum, adenoma
- Description:
- An adenoma is a benign tumor (-oma) of glandular origin. Adenomas can grow frommany organs including the colon, adrenal glands, pituitary gland, thyroid, prostate, etc.Although these growths are benign, over time they may progress to become malignant, atwhich point they are called adenocarcinomas. Even while benign, they have the potentialto cause serious health complications by compressing other structures (mass effect) andby producing large amounts of hormones in an unregulated, non-feedback-dependentmanner (paraneoplastic syndrome).
- Keyword:
- Neoplasms, epithelium, Benign, Adenoma, Neoplasms by Histologic Type, tumor
- Subject:
- Gastrointestinal Tract, Digestive System, Intestine, Small, Intestines, Neoplasms, Glandular and Epithelial, Duodenum, Adenoma, Upper Gastrointestinal Tract, Colonoscopy
- Creator:
- Paul Choi, MD
- Publisher:
- i-Human Patients, Inc.
- Language:
- English
- Copyright Holder:
- Paul Choi, MD
- Rights:
- http://www.i-human.com/service-agreement-print
- Resource Type:
- Photograph
- Identifier:
- 1120