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A papilloma (plural papillomas or papillomata) (papillo-+ -oma) is a benign epithelial tumor [1] growing exophytically (outwardly projecting) in nipple-like and often finger-like fronds. In this context, papilla refers to the projection created by the tumor, not a tumor on an already existing papilla (such as the nipple).
Squamous cell papilloma of the mouth or throat is generally diagnosed in people between the ages of 30 and 50, [1] and is normally found on the inside of the cheek, on the tongue, or inside of lips. Oral papillomas are usually painless, and not treated unless they interfere with eating or are causing pain. [ 1 ]
Choroid plexus papilloma, also known as papilloma of the choroid plexus, is a rare benign neuroepithelial intraventricular WHO grade I lesion found in the choroid plexus. [1] It leads to increased cerebrospinal fluid production, thus causing increased intracranial pressure and hydrocephalus .
Choroid plexus tumors are a rare type of cancer that occur from the brain tissue called choroid plexus of the brain. [3] Choroid plexus tumors are uncommon tumors of the central nervous system that account for 0.5–0.6% of intracranial neoplasms in people of all ages.
Laryngeal papillomatosis, also known as recurrent respiratory papillomatosis (RRP) or glottal papillomatosis, is a rare medical condition in which benign tumors form along the aerodigestive tract. [1] [2] There are two variants based on the age of onset: juvenile and adult laryngeal papillomatosis. [3]
Papillomas caused by some types, however, such as human papillomaviruses 16 and 18, carry a risk of becoming cancerous. [6] Papillomaviruses are usually considered as highly host-and tissue-tropic, and are thought to rarely be transmitted between species. [7] Papillomaviruses replicate exclusively in the basal layer of the body surface tissues.
Cases of PB have also been reported to occur in individuals with a family history of certain genetic diseases. [4] Pediatric cases of PB tumors are commonly treated by total resection. [6] Complete excision of PB tumors with clear surgical margins to remove all tumor cells is important in order to reduce a recurrence of the tumor at its site of ...
Another study detected HPV in the exhaled breath condensate (EBC), bronchial brushing and neoplastic lung tissue of cases, and found a presence of an HPV infection in 16.4% of the subjects affected by nonsmall cell lung cancer, but in none of the controls. [83]