Choristoma - Wikipedia
WebChoristomas, a form of heterotopia, are masses of normal tissues found in abnormal locations. [1] [2] [3] [4] In contrast to a neoplasm or tumor, the growth of a choristoma is normally regulated. [5] It is different from a hamartoma.
Choristoma | DermNet
WebChoristoma is a rare benign tumour consisting of microscopically normal tissue derived from germ cell layers foreign to that body site. Choristomas are classified according to their type of tissue. They sometimes arise within the skin or oral cavity, and can also occur in internal organs.
Dermoid Cyst - EyeWiki
WebA dermoid cyst is a congenital choristoma of the orbit. A choristoma is a benign tumor consisting of histologically normal cells occurring in an abnormal location. Dermoid cysts consist of keratinized epithelium and adnexal structures such as hair follicles, sweat glands, and sebaceous glands.
Choristoma - an overview | ScienceDirect Topics
WebChoristomas are congenital tumors consisting of displaced tissue elements in an abnormal location. The most common conjunctival choristomas are dermoids and lipodermoids. Conjunctival dermoids are congenital, well-circumscribed, firm yellow-white solid masses with a predilection for the limbus.
Pathology Outlines - Choristoma
WebDec 12, 2023 · Definition / general. Choristoma is a tumor-like mass consisting of normal cells in an abnormal location ( J Oral Maxillofac Surg 2012;24:110 ) Hamartoma is a tumor-like malformation composed of mature normal cells in usual location but as a …
Dermoid cysts | DermNet
WebA dermoid cyst is a choristoma, a benign tumour consisting of microscopically normal tissue derived from germ cell layers foreign to that body site. In the skin, dermoid cysts are made up of epidermal and dermal components: keratinocytes, hair …
Choristoma | Radiology Reference Article | Radiopaedia.org
WebSep 17, 2023 · A choristoma is simply a collection of microscopically normal cells or tissues in an abnormal location. This is different to a hamartoma which is derived only from local tissues. Examples include: adrenal choristoma (myelolipoma) nasopharyngeal choristoma; facial nerve choristoma; optic nerve choristoma; trigeminal nerve choristoma; ocular ...
Heterotopias, Teratoma, and Choristoma | SpringerLink
WebA choristoma is a mass formed by heterotopic tissue. Thus, by definition, choristomas are benign tumors. While choristomas are frequently encountered in some parts of the body, such as in the case of endometriosis (ectopic ovarian tissue) in the pelvis, choristomas in the head and neck are relatively rare.
Choristoma: A rare congenital tumor of the tongue - PMC
WebChoristoma is a mass of normal tissue in an abnormal location; they are classified according to the predominant epithelial lining. Few cases have been reported lined with gastric and respiratory epithelia within the same cyst.
Choristomas | SpringerLink
WebJan 1, 2016 · A choristoma is defined as a group of histologically normal cells in an abnormal location. A simple choristoma consists of one type of tissue, whereas a complex choristoma is comprised of multiple types of tissues.
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