Radiological Evaluation Key to Diagnosis of Idiopathic Solitary Cyst

Abstract

Idiopathic solitary cysts have a predilection for long bones and the mandible. Although the origin of these cysts is unclear, the prognosis seems to be good, given proper diagnosis and surgical treatment. A 14-year-old female patient with a bone lesion in the right mandibular ramus was referred to the Department of Pediatric Dentistry at the Medical University of Gdansk, Poland. Due to severe headache lasting two days, the patient had previously undergone magnetic resonance imaging (MRI) examination of the head. A unilocular bone cyst in the mandible was discovered incidentally. Comparison with a previous orthopantomogram (OPG) taken two years earlier for routine dental treatment revealed a clearly visible but smaller bone lesion at the same location. Surgery was carried out in order to achieve bone regeneration. This report documents the importance of careful evaluation and assessment of all radiographs taken, as the lesion could have been diagnosed and treated much earlier, thus lowering the risk of complications.

Position and Stability of the Prosthesis in Severely Deformed DDH Artificial Total Hip Replacement

“…The best and ideal position for the distal position of the femoral prosthesis is in a neutral position or mild valgus, with an angle of 3° or less, and a slight mild valgus is also acceptable, but the fixed angle of the prosthetic stem is 3° and above is not acceptable. Because of the deviation of the force line of the prosthesis stem, the stress in the femoral medullary cavity increases locally after weight bearing, and the femur will be painful and the prosthesis will move slightly, which will the to a long time [16]. The current clinical evaluation criteria for prosthesis loosening is that the distal position of the prosthesis stem has an internal and eversion angle of more than 3° or a progressive sinking displacement of more than 2 mm [17].…”

Management of a solitary bone cyst using a custom-made surgical guide for a minimally invasive approach: technical note and case report

“…A preliminary diagnosis was previously established through Cone Beam Computed Tomography (CBCT) and Magnetic Resonance Imaging (MRI) assessment [9]. Intraoperatively, the diagnosis was clinically confirmed by the presence of an empty bony cavity, as widely documented in literature [3,10].…”

“…The intralesional surgical observation reveals a bony cavity containing a characteristic serous or sero-hematic fluid. The absence of a cystic wall and the intralesional fluid content confirm this diagnosis [ 3 ]. Histologically, if the operator sends a curettage product of the bony wall, one may find a very thin layer of nonspecific loose connective tissue [ 2 ].…”

“…It can erode the bony cortices and is bordered by a rim of peripheral osteosclerosis indicating its chronic evolution and benign nature. The buccal and lingual cortices are blown out, and the inferior alveolar nerve canal is indiscernible radiographically inside this lesion [ 3 ].…”