| Osteoma | |
|---|---|
 | |
| Osteoma of external auditory meatus | |
| Specialty | Oncology  |
An osteoma (plural osteomas or less commonly osteomata) is a new piece of bone usually growing on another piece of bone, typically the skull. It is a benign tumor.
When the bone tumor grows on other bone it is known as "homoplastic osteoma"; when it grows on other tissue it is called "heteroplastic osteoma".[1]
Osteoma represents the most common benign neoplasm of the nose and paranasal sinuses. The cause of osteomas is uncertain, but commonly accepted theories propose embryologic, traumatic, or infectious causes. Osteomas are also found in Gardner's syndrome. Larger craniofacial osteomas may cause facial pain, headache, and infection due to obstructed nasofrontal ducts. Often, craniofacial osteoma presents itself through ocular signs and symptoms (such as proptosis).[2]
Variants[edit]
- Osteoma cutis (also known as "Albright's hereditary osteodystrophy")
- Osteoid osteoma
- Fibro-osteoma
- Chondro-osteoma
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Osteoma of the frontal sinus seen on x-ray -
Osteoma of the frontal sinus on CT -
Osteoma
See also[edit]
References[edit]
- ^ "Head and Neck Osteoma". Penn Medicine. February 2, 2023.
- ^ Michael S. Schwartz, MD; Dennis M. Crockett, MD. "Management of a Large Frontoethmoid Osteoma with Sinus Cranialization and Cranial Bone Graft Reconstruction". International Journal of Pediatric Otorhinolaryngology.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction