Two cases of brown tumor of the humerus caused by ectopic parathyroid adenomas were presented, which to our knowledge has not been previously documented in the international literature. There are two highlights in these two cases. First, brown tumors of the long bones may commonly involve femur and tibia, rarely involve humerus in association with primary hyperparathyroidism. Second, ectopic pa...

Brown tumor represents a serious and late bony complications of advanced hyperparathyroidism with a frequency of 1.5–1.75 percent in secondary hyperparathyroidism and 3–4 percent in primary hyperparathyroidism. [1,2] Here we describe an extremely rare case of a 19-year-old male patient with a brown tumor localised in the maxilla and mandibular due to secondary hyperparathyroidism compromising m...

Brown tumors are relatively uncommon but they are serious complications of renal osteodystrophy. We describe a 31-year-old woman with end-stage renal disease who had undergone hemodialysis for nine years and developed severe secondary hyperparathyroidism and a maxilla brown tumor despite increasing doses of oral calcitriol and calcium carbonate. The fast increase of the right maxillary bone tum...

To the Editor: Children with disabilities are predisposed to deficiency of various macroand micro-nutrients due to factors such as feeding difficulties, dietary restrictions, immobility, dependency, neglect, and pubertal delay. Here we share our experience of a child with cerebral palsy who presented with brown tumor of the jaw due to nutritional vitamin D deficiency [1, 2]. A 12-y-old child wi...

Hibernoma is a rare benign tumor considered to arise from remnants of fetal brown adipose tissue. It tends to occur in sites where brown fat persists beyond fetal life, such as the interscapular region, but can occur in sites where brown fat is usually absent in adults. Clinicallywell, hibernomas are slow-growing, asymptomatic tumors. However, unlike lipomas, MRI findings sometimes mislead clin...

Brown tumors are focal bone lesions, encountered in patients with uncontrolled hyperparathyroidism. They can be located in any part of the skeleton. Clinically significant lesions in the craniofacial bones are rare. Craniofacial involvement may cause facial disfiguration and compromise social ease of the patient and normal functions, such as chewing, talking, and breathing. In this case report,...

INTRODUCTON: Many lesions of the jaws contain giant cells, they include Peripheral giant cell granuloma, Central giant cell granuloma, aneurismal bone cyst, brown tumor of hyperparathyroidism and early stage of cherubism. Giant cell granuloma which is a benign bone lesion that occurs mainly in the jaws are not tumor but tumor like conditions, the cause of tumor like condition is chronic truma w...