Periosteoma is a medical term used to describe a benign growth of tissue on the surface of bone, particularly the skull. The word is pronounced /ˌpɛrɪˈɒstiːəʊmə/ with stress on the second syllable. The first syllable is pronounced as "per-i" using the short e sound, while the second syllable is pronounced as "o-stee-oh-ma." The final syllable is "-ma" pronounced using the short a sound. The spelling of this word reflects its Greek origins, with "peri" meaning around, "osteo" meaning bone, and "oma" meaning swelling.
Periosteoma is a medical condition characterized by the formation of a benign tumor on the surface of the periosteum, which is the dense layer of connective tissue that covers the outer surface of bones. This condition is relatively rare and usually affects the long bones, such as the femur or tibia, but can also occur in other bones of the body.
The periosteoma tumor is composed of abnormal or overgrown bone cells, leading to the development of a small, hard lump on the affected bone. It typically appears as a solitary, painless nodule that slowly grows over time. In some cases, periosteomas can cause discomfort or pain, especially when pressure is applied or during physical activity.
Although the exact cause of periosteoma is unknown, it is believed to be related to a combination of genetic factors and abnormal bone development. It is not typically associated with any specific underlying systemic condition or disease.
Diagnosis of periosteoma is usually made through imaging techniques, such as X-rays, CT scans, or MRI scans, which can reveal the presence of the tumor and help assess its size and location. Treatment for periosteoma depends on various factors, including the size and location of the tumor, as well as the presence of symptoms. Options may include surgical removal of the periosteoma or simply monitoring the condition over time. Most periosteomas are benign and do not require extensive treatment, but regular follow-up visits with a healthcare professional are recommended to monitor for any potential changes or complications.
1. A tumor of the periosteum. 2. A tumor surrounding a bone.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "periosteoma" is derived from two Greek roots: "peri-" meaning "around" or "surrounding", and "osteoma" meaning "bone mass" or "tumor of bone". Thus, the term "periosteoma" refers to a benign tumor that develops on the surface of the bone.