Skull bossing is when the bones of the skull become bigger than normal which most often occurs in the frontal bones beneath the forehead. Skull bossing may happen from different medical conditions.
Frontal bossing [change]
Frontal bossing is when the forehead becomes bigger than normal which may also make the brow ridge stick out more. It happens when the frontal bone becomes bigger because of a medical condition. This often happens when other facial bones of the skull become bigger too, as well as the jaw bone and the bones in the hands and feet. Frontal bossing is usually seen in a few rare medical syndromes such as acromegaly - a chronic medical disorder in which the anterior pituitary gland makes to much growth hormone (GH).
Medical disorders that may cause skull bossing [change]
- Basal cell nevus syndrome
- Congenital syphilis
- Cleidocranial dysostosis
- Crouzon syndrome
- Hurler syndrome
- Pfeiffer syndrome
- Rubinstein-Taybi syndrome
- Russell-Silver syndrome (Russell-Silver dwarf)
- Trimethadione (antiseizure drug) use during pregnancy
- Beta-thalassemia (due to expansion of bone marrow secondary to increased hematopoiesis)
- M. Sperling: Pediatric Endocrinology. p.748 Saunders; 3 edition (2008) ISBN 1416040900
- PubMed Health: Frontal bossing
- Bope, Edward T., and Rick D. Kellerman. "Chapter 13 - Hematology." Conn's Current Therapy: Latest Approved Methods of Treatment for the Practicing Physician. Philadelphia: Saunders Elsevier, 2012.