XXXX of the bone: does it exist in Saudi Arabia?

@entity4512 @entity1 @entity3557 @entity626 @entity5 @entity4261 @entity158 @entity3 @entity393
@entity4261 of the bone is a chronic disease characterized by accelerated bone turnover with abnormal repair leading to expansion, @entity4512 . The disease is common in the West, but little if any information is available on its existence in the Arab world, including Saudi Arabia. We present four cases of Saudi @entity1 with @entity4261 with variable presentations. The first case, a 63-year-old @entity1 with a history of @entity3557 , presented with bone, shoulder and chest wall @entity158 and foci of uptake in the ribs and skull that were thought to be @entity3 , indicating the possibility of diagnostic difficulty in a @entity1 with history of @entity5 . Bone biopsy confirmed the diagnosis of @entity4261 . The second case was a 47-year-old asymptomatic @entity1 with an elevated alkaline phosphatase of 427 U/L, a common presentation but at an unusual age. Plain x-rays and bone scan confirmed the diagnosis. The third case was a 43-year-old @entity1 who presented with @entity393 and @entity626 , unusual presentations at a young age leading to a delay in diagnosis. The fourth case was a 45-year-old @entity1 who presented with @entity158 and normal biochemical values, including a normal alkaline phosphatase. Bone biopsy unexpectedly revealed features of @entity4261 , which evolved over time into a classical form. A common feature in all except the first case was the relatively young age. @entity4261 does exist in Saudi Arabia, and it should be considered in the differential diagnosis of similar cases.
