19 year old male with painin knee joint
On ct and MRI there is Subchondral defect notedin lateral aspect of medial femoral Condyle with Separated and inferiorly placed Osteochondral Fragment
Unstable OCD (Stage IV)
A10 year old girl with non-specific dull bodyache.
Sinus histiocytosis with massive lymphadenopathy (SHML) or Rosai-Dorfman disease is anon-neoplastic condition which typically presents as massive, bilateral cervical lymphadenopathy and can involve multiple extranodal organ systems such as skin, eyes, and upper respiratory tract in about 28% cases. It is a rare benign idiopathic proliferative disease that involves phagocytic histiocytes. Bone lesions in association with nodal disease are seen in less than 10% cases.
Isolated bone involvement as the only manifestation of SHMLis extremely rare, with less than 50 cases reported in the literature. We report a very uncommon case of Rosai-Dorfman disease with isolated multifocal osseous involvement as the only presenting feature, involving multiple sites with no lymphadenopathy or other organ system involvement.
Unstable OCD (Stage IV)
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