As far as our knowledge there is no reported case of psammomatoid type of juvenile ossifying fibroma of proximal radius. Anterior rhinoscopy showed mass in the right nasal cavity obliterating it. JOF tends to occur at younger age group and is locally aggressive and these characteristics make them different from conventional ossifying fibroma and other fibro-osseous lesions [ 1 , 2 ]. The lesion filled the sphenoid sinus and extended intracranially into the suprasellar region to appose both carotid arteries, the left orbit, and the left temporal lobe.
Superiorly, it eroded the planum sphenoidale, causing distortion and compression of the optic apparatus and inferior frontal lobes. Because this lesion is aggressive in nature with high recurrence rate, early detection and complete surgical excision are essential. View in gallery Pathological specimens from the initial endoscopic transnasal resection. We believe that such tumors in long bones are aggressive and have tendency for recurrence.
It is considered to be a unique lesion because of its reported tendency to occur in children and adolescents and its tendency for locally aggressive growth. We believe that such tumors in long bones are aggressive and have tendency for recurrence. El-Mofty described two variants of Juvenile ossifying fibroma JOF , namely Juvenile psammomatoid ossifying fibroma JPOF and Juvenile trabecular ossifying fibroma JTOF [ 1 - 6 ] Radiographically both exhibit a mixture of radiolucent and radiodense areas with thin sclerotic rims that may be incomplete [ 4 ].
Superiorly, it eroded the planum sphenoidale, causing distortion and compression of the optic apparatus and inferior frontal lobes. Close Pathological specimens from the initial endoscopic transnasal resection.
Juvenile psammomatoid ossifying fibroma JPOF is a rare fibro-osseous lesion that usually occurs in the facial bones. Because of unpredictable rapid and progressive growth, the management and the prognosis are uncertain. The lesion filled the sphenoid sinus and extended intracranially into the suprasellar region to appose both carotid arteries, the left orbit, and the left temporal lobe. It is considered to be a unique lesion because of its reported tendency to occur in children and adolescents and its tendency for locally aggressive growth.
Central cystic transformation of the mass is accompanied by a residual thick, fibrous-appearing capsule. The pathognomonic histopathologic feature is the presence of spherical ossicles, which are similar to psammoma bodies.
Posted by: Kir | on October 2, 2012
Since pain and limitation of her activities in school was increasing, she approached our hospital for further investigation and treatment. We performed extensive debridement, curettage of entire cystic lesion involving the proximal radius and filled the cavity with allograft bone granules and intramedullary titanium elastic nail through fibular strut graft, bridging the cystic lesion.
Plain radiograph showed huge cystic bony lesion with multiple septae Fig. Two distinctive microscopic patterns have been described; a trabecular variant and a Psammomatoid variant.
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Significant demographic difference between the two variants of Juvenile Ossifying fibroma were noted by Samik El Mofty [ 2 ] while the trabecular variant is predominantly a gnathic lesion, with a predilection for the maxilla, PsJOF occurs more commonly in the sinonasal and orbital bones.