Cases reported "Exostoses"

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1/42. Pronounced palatal and mandibular tori observed in a patient with chronic phenytoin therapy: a case report.

    phenytoin, an anticonvulsant drug for epileptic patients, has many adverse effects, including calvarial thickening and coarsening of the facial features. Previous studies have demonstrated that phenytoin has an anabolic action on bone cells. This report describes pronounced palatal and mandibular tori found in a 45-year-old Japanese man undergoing chronic phenytoin therapy. The tori were extremely large, lobular, and symmetrical. A palatal torus appeared along the middle of the hard palate and mandibular tori consisted of 2 pairs of nodular masses extensively filling the lingual floor of the oral cavity. Pronounced osseous outgrowth occurred for the duration of a dose-increase of phenytoin from 1985 to 1997. His parents did not have any palatal or mandibular tori. These facts suggest that these unusual tori may have been the result of chronic phenytoin therapy, rather than association with the familial background.
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2/42. association of diffuse idiopathic skeletal hyperostosis (DISH) and calcification and ossification of the posterior longitudinal ligament.

    Diffuse idiopathic skeletal hyperostosis (DISH) is a common ossifying diathesis in middle-aged and elderly patients characterized by bone proliferation along the anterior aspect of the spine and at extraspinal sites of ligament and tendon attachment to bone. Four patients with DISH revealed extensive calcification and ossification of the posterior longitudinal ligament in the cervical spine. review of cervical spine radiographs in 74 additional patients with DISH demonstrated bony hyperostosis of the posterior aspect of the vertebrae in 41%, posterior spinal osteophytosis in 34%, and posterior longitudinal ligament calcification and ossification in 50%. These ligamentous findings, which have previously been described almost exclusively in Japanese people, appear to be an additional skeletal manifestation of DISH.
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3/42. Multiple maxillary and mandibular exostoses associated with multiple dermatofibromas: a case report.

    exostoses of the maxilla and mandible are nodular protuberances of mature bone that need to be accurately distinguished from other more diagnostically significant lesions, notably exosteal osteomas. Multiple dermatofibromas are rare and may be associated with altered immune function. We report the case of an otherwise healthy 47-year-old woman who was first seen with multiple maxillary and mandibular exostoses associated with multiple dermatofibromas. This association has not been previously reported.
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4/42. Resection of a plantar calcaneal spur using the holmium:yttrium-aluminum-garnet (Ho:YAG) laser.

    Many procedures have been described for the resection of plantar calcaneal spurs as treatment of heel spur syndrome and chronic plantar fasciitis. Most of these techniques involve a medial incision of between 2 and 6 cm for adequate exposure of the calcaneal spur. This article describes a new technique for resecting a calcaneal spur with a smaller medial incision using the holmium:yttrium-aluminum-garnet (Ho:YAG) laser. This laser permits adequate resection of a plantar calcaneal spur as well as coagulation of the bone and surrounding tissues. This minimally invasive procedure has been used with good results over the past year by the senior author (W.K.S.) for the resection of calcaneal spurs.
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5/42. Pseudo-aneurysm of the popliteal artery by femoral exostosis in a young child.

    Exostosis is a solitary benign bone tumor frequently observed in children. It may be totally quiescent or provoke complications. We report a case of pseudo-aneurysm of the popliteal artery caused by an exostosis on the lower metaphysis of the femur in a 12-year-old boy. This unusual complication mostly reported in young males (mean age 19 years) occurs in the context of an initial trauma in half the cases. Surgical treatment is a semi-emergency requiring both bone and arterial repair. Preventive surgery should be discussed for all cases of exostosis with a risk of arterial damage due to the gravity of the potential vascular complications.
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6/42. Ridge augmentation using mandibular tori.

    A 19-year-old female was referred by her dental practitioner for the restoration of missing maxillary lateral incisors and canines. Ridge augmentation was required. This was undertaken using mandibular tori as the sites for harvesting bone. The grafting was successful and the spaces were subsequently restored using resin-bonded bridgework. The case reports that mandibular tori provide a local and convenient source of bone for ridge augmentation procedures.
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7/42. Exostosis following a free gingival graft.

    BACKGROUND: There have been few cases reported of exostoses following a free gingival graft. In 1980, a free gingival graft was placed on the facial level of 33-34, developing over the years a significant enlargement. In 1999, since the patient felt progressively uncomfortable with the enlarged area, its surgical reduction was proposed. METHOD: Under local anesthesia, the hard tissue developed under the previously-grafted area, was significantly reduced. The specimen, together with a fragment of the covering soft tissue, was sent for histological analysis. RESULTS: The surgical wound healed uneventfully, and the patient was satisfied with the results. The histology showed the presence of mature bone surrounded by a dense connective tissue, whereas the gingival tissue showed acanthosis and fibrosis. CONCLUSION: The development of exostoses following a free gingival graft can be considered an unpredictable, albeit infrequent side-effect of this procedure. The fact that most of these exostoses appear in the cuspid-premolar area, deserves further consideration.
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8/42. Exostosis following a subepithelial connective tissue graft.

    This case report describes the formation of an unusual unaesthetic gingival enlargement during a five year post operative period subsequent to a subepithelial connective tissue graft placed facial to teeth #4 and #6. Histological assessment of the enlarged tissue indicated that it consisted of viable bone and marrow. The exostosis was reduced with rotary instruments and acceptable soft tissue aesthetics were created using a carbon dioxide laser for gingivoplasty. Possible causes for this unusual enlargement are discussed.
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9/42. minocycline-induced staining of torus palatinus and alveolar bone.

    BACKGROUND: minocycline hydrochloride, an analog of tetracycline, is widely used in the treatment of acne. Its use has been associated with discoloration of teeth, bone, and other tissues. methods: A case is presented involving a patient with minocycline-induced staining of the torus palatinus and alveolar bone. RESULTS: No treatment was rendered since the patient was not concerned with the appearance of the discoloration. The patient's dermatologist elected to change antibiotics. CONCLUSIONS: patients on long-term minocycline therapy should be made aware of the possibility of pigmentation of bone and soft tissue that may be reversible with discontinuation of therapy; however, minocycline-induced staining of the permanent dentition may not be reversible.
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10/42. Subungual exostosis of the thumb.

    A 19-year-old girl presented with painful raised skin lesions over the right thumb for the past one year that had ulcerated over the last one month. On examination, a lobulated nodule of bony-hard consistency, measuring around 2 cm was present over the lateral aspect of the tip of the right thumb. The lesion was tender and the overlying skin showed superficial erosions. Roentgenogram of the hand showed mature bone projecting from the distal end of the terminal phalanx of the right thumb forming a "Y"-like bifurcation. histology from a bit of excised tissue from the lesion (thumb) showed evidence of mature trabecular bone with a fibrocartilaginous cap in the deep dermis. There was no evidence of malignant change on histology. Local excision of the entire lesion was done and there has been no recurrence till date.
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