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At least 109 records · Page 6Linked to original sources
PubMed2004

Frontal bone periosteal osteomas.

Osteomas are the most common tumors of the cranial vault and facial skeleton. Osteomas are usually benign in nature, commonly presenting with symptoms of facial deformity, facial pain, and headaches. Although the frontal sinus is the most frequent location of cranial osteomas, they are also occasionally seen involving only the frontal bone periosteum. This study is a retrospective series investigating the characteristics, management, and outcomes of five patients with frontal bone periosteal osteomas surgically treated with superficial osteotomies with primary closure. Medical charts were reviewed focusing on symptoms, size, radiographic findings, and disease of the periosteal osteomas. The chief complaint primarily involved a palpable deformity, which led to surgical evaluation. Radiographic studies were obtained to evaluate size and location of the frontal osteomas. Microanalysis of the specimens confirmed the presence of mature cancellous and/or cortical bone. Postoperative follow-up revealed no evidence of recurrence or complications. The superficial ostectomy technique with primary closure offers a simple, effective method for removal of frontal bone periosteal osteomas with minimal side effects.

Adult↗
PubMed2006

Cementifying fibroma of the frontal bone: a case report.

Cementifying fibromas are rare fibro-osseous tumours that are usually found in the jaws. We report a 10-year-old boy who presented with a mass in the frontal bone causing frontal bossing and proptosis. The preoperative diagnosis was not clear despite computed tomographic and magnetic resonance imaging. The lesion was resected completely and found to be a cementifying fibroma. It was reconstructed at the same operation and he made a good recovery with no sign of recurrence.

Child↗
PubMed1979

Lipoma of the frontal bone.

A 61-hear-old man was followed up for more than 17 years with what was thought to be fibrous dysplasia of the frontal bone. Postmortem microscopic examination of the lesion showed an intraosseous lipoma with myxomatous foci and bony metaplasia involving the frontal and orbital portions of the frontal bone.

Aged↗
PubMed1999

Frontal bone windows for transcranial color-coded duplex sonography.

BACKGROUND AND PURPOSE: The use of the conventional temporal bone window for transcranial color-coded duplex sonography (TCCS) often results in difficulties in obtaining angle-corrected flow velocity measurements of the A2 segment of the anterior cerebral artery, the posterior communicating artery, and the midline venous vasculature because of the unfavorable insonation angle. The same applies to B-mode imaging of the frontal parenchyma. However, transorbital TCCS raises problems with the insonation of the orbital lens. To overcome these drawbacks, we studied the feasibility of frontal bone windows for TCCS examinations. METHODS: In 75 healthy volunteers (mean age, 45.3+/-17.0 years; age range, 17 to 77 years), the circle of Willis and the venous midline vasculature were insonated through a lateral and paramedian frontal bone window. Insonation quality of parenchymal structures (B-mode) was graded on a 3-point scale depending on the visibility of typical parenchymal landmarks. In a similar manner, the quality of the color-/Doppler-mode imaging of the arteries of the circle of Willis and the internal cerebral veins was assessed. In 15 patients (mean age, 62.7+/-13.7 years; age range, 33 to 83 years), the color-/Doppler-mode imaging quality of the intracranial vessels before and after application of an ultrasound contrast-enhancing agent was compared. RESULTS: B-mode insonation quality was optimal to fair in 73.3% of cases using the lateral and in 52.0% of cases using the paramedian frontal bone window, with defined parenchymal structures used as reference. Insonation quality decreased in those older than 60 years. In those younger than 60 years, angle-corrected flow velocity measurements of the A2 segment of the anterior cerebral artery and the internal cerebral vein were possible in 73.6% and 60.0%, respectively. Contrast enhancement resulted in a highly significant improvement in the imaging quality of the intracranial vessels. CONCLUSIONS: The transfrontal bone windows offer new possibilities for TCCS examinations, although the insonation quality is inferior to the conventional temporal bone window in terms of failure of an acoustic window. This can be compensated for by application of an ultrasound contrast-enhancing agent.

Adolescent↗
PubMed1994

Langerhans' cell histiocytosis of the frontal bone.

Two cases of Langerhans' cell histiocytosis of the frontal bone are presented. This condition was previously known as eosinophilic granuloma and rarely involves the orbit but may be associated with widespread and life-threatening disease. Clinical, radiological and histopathological features are presented. A discussion of the light and electron microscopic appearances, investigation and management follows.

Child, Preschool↗
PubMed2005

Closed reduction of fractured anterior wall of the frontal bone.

The authors report two cases of closed reduction of the anterior wall of the frontal bone. In the first case, the fractured segment was successfully reduced with a small periosteal elevator. In the second case, a tip of the periosteal elevator was broken during maneuvering the fractured bone and lost into the sinus cavity. The sinus was opened to retrieve the broken piece and repaired by internal fixation. The technique has a few merits: (1) the procedure is simple; (2) the operation time is short; and (3) only a small incision is needed.

Adolescent↗
PubMed1984

[Morphogenesis of the frontal bone in the chick embryo. Study of induction phenomena].

Comparison of results obtained by SCHOWING (1968) with those of BALLIF (1985) shows that frontal bones of chick embryo, which are completely missing after removal of the anterior encephalic territories, are still partially existent after a localized microinjection of Actinomycin D into the embryonic encephalon. The remaining part of frontal bones corresponds to territories mainly derived from the neural crests (NODEN, 1982). These latters don't need any encephalic induction to develop into ossification centres.

Animals↗
PubMed1986

[Cavernous hemangioma of the frontal bone].

A 44-year-old woman was admitted to our department because of a painless lump on her forehead. Physical examinations were normal except for this lump. Both laboratory data and neurological findings were normal. Plain skull radiograph showed a 4.5 X 5.0 cm honeycombed radiolucent defect in the frontal bone. CT scan demonstrated this lucent defect as a reticular pattern by means of changing the window levels. Moreover, invasive lesion of the inner table which could not be identified in the plain radiographs, was also demonstrated on CT. A left common carotid angiogram showed irregular pooling of contrast material in the radiolucent area of the frontal bone. Angiographically, blood supplies to this tumor were mainly contributed by the frontal branches of the middle meningeal artery and a meningeal branch of the anterior falx artery from the terminal portion of the ophthalmic artery. A bone scintigram revealed accumulation of radioisotope in the lesion. A highly vascular tumor, which was partially adherent to the underlying dura, was removed as en bloc. Postoperative course was uneventful. The histology revealed thin-walled dilated vessels between the trabeculae, and it was diagnosed as cavernous hemangioma of the bone. Hemangioma of the calvarium is estimated to constitute 0.2% of all osseous neoplasms and 10% of primary benign neoplasms the of the skull. Hemangioma of the skull frequently involves the frontal bone. The condition is often found in middle-aged females. The symptom is only a slowly growing, painless lump in most of the cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1980

Movement of the cleft maxilla in infants relative to the frontal bone. A roentgen stereophotogrammetric study with the aid of metallic implants.

Four implants (tantalum balls 0.5 mm in diameter) were inserted in the frontal bone, and three implants (tantalum pins 1.5 x 0.5 mm) were inserted in each lateral segment of the cleft maxilla of ten infants aged 13 to 42 months. Motion of the maxillary segments was studied relative to the frontal bone by means of roentgen stereophotogrammetry during observation periods from 371 to 868 days. The results were presented by means of computer drawings of the implant triangles projected on the three cardinal planes. With this technique, movement of the maxillary segments could be visualized with a high degree of accuracy. No pattern of movement related to time or type of surgery, to type of cleft (UCLP/BCLP), or to cleft or non-cleft segment could be found.

Cephalometry↗
PubMed2006

Fibrous dysplasia of the frontal bone.

Fibrous dysplasia typically occurs in patients between the ages of 5 and 15 years. We report the case of a middle-aged woman with longstanding monostotic fibrous dysplasia who responded well to conservative treatment. She had presented with a very long (15 yr) history of frontal headache and pressure over the frontal sinus. On examination, a protuberance was noted in the region of the right frontal sinus. No other symptoms were evident, and findings on the ENT examination were normal. Computed tomography (CT) detected a widening of the frontal bone with osteolytic changes of the cancellous bone of the diploe. Partial multiphase skeletal scintigraphy and single-photon emission CT of the cranium showed increased bone metabolism in the area of the right frontal bone. No other hot spots were seen. In view of the absence of any complications, no tissue biopsy was performed. The patient was prescribed bisphosphonates for symptom relief. Follow-up CT 1 year later revealed no progression of the lesion. Overtreatment of fibrous dysplasia should be avoided because most patients respond to conservative management. In those cases that are refractory to medical treatment, surgery--in experienced hands--can result in a good functional and cosmetic outcome.

Bone Density Conservation Agents↗
PubMed2002

A new technique for cranial bone osteofixation: use of bioabsorbable tacks and plates to fix parietal bone split grafts used for reconstruction of a posttraumatic frontal bone defect.

Recent advances in bioabsorbable devices have introduced tacks that do not require tapping. This may help to reduce operative time and, consequently, costs. The goal of this study was to demonstrate the feasibility of a new method of cranial bone osteofixation using novel bioabsorbable tacks and plates instead of screws. A 36-year-old man presented for elective cranioplasty to reconstruct a large frontal cranial bone defect that followed a decompression operation performed because of a head injury sustained 6 months previously. Cranioplasty was performed using split parietal bone grafts to reconstruct the defect. Bone grafts were fixed together and to the skull using self-reinforced (SR) poly(L/DL)lactide [SR-poly(L/DL)lactide] (70/30) (Biosorb FX) plates (n = 10) and tacks (n = 98). The plates were 0.6 mm thick, 102 mm long, and 12 mm wide. The tacks had a maximum thread diameter of 2 mm and a length of 6 mm. The tacks used did not require any tapping procedure, and they were applied using a special applicator gun. Stable and secure fixation was obtained during surgery. The postoperative period was uneventful, except for delayed epithelialization of a small area (1 x 0.5 cm) over the frontal skin that healed later. One year after surgery, the cosmetic result was excellent, and no complications were detected. Stabilization of large cranial bone pieces can be achieved using bioabsorbable SR-poly(L/DL)lactide plates and tacks, with excellent cosmetic results. The method is thought to be reliable and may help to reduce operative time.

Absorbable Implants↗
PubMed1977

The cavernous haemangioma of the frontal bone. A case report.

A case of haemangioma of the frontal bone is presented. The clinical presentation and the radiological features, which are diagnostic of this very rare condition, are given. Treatment is complete excision of the tumour, the macroscopical and microscopical appearances of which are discussed.

Adult↗
PubMed1998

Osteoid osteoma of the frontal bone. Case report.

A case of osteoid osteoma of the frontal bone is presented. It is a benign bone tumour which rarely involves the cranium. Local pain that is worse at night and improves following salicylate administration is characteristic for osteoid osteoma. This report describes cranial osteoid osteoma, a rare pathologic entity for the cranium, with pain only on palpation.

Adolescent↗
PubMed1979

[Late results of frontal bone reconstructions using Paladon].

Report about 12 cases of defect of the frontal bone: state after radical operation of the frontal sinus (Riedel's operation) or after removal of bone splinters after injury. 6--12 months later a paladon-inlay (acrylate prosthesis) can be implanted to fill the defect and to restore the profile. Description of the production, forming, sterilization and operative implantation of the prosthesis. The patients have been observed up to 18 years. In one case the implanted material was removed after 10 years because of recurrent local suppurations. All the other patients showed an uncomplicated course until today; the cosmetic and functional result was permanently good.

Acrylic Resins↗
PubMed1990

Cavernous hemangioma of the frontal bone.

A 61-year-old female presented with a tumor of her left superior orbital rim, which caused blepharoptosis and slight displacement of the globe. X-ray films showed a lytic defect in the frontal bone, while a computed tomography revealed the tumor to extend along the orbital roof, as well as to involve the posterior lamina of the frontal bone. A biopsy taken from the tumor showed it to be an intraosseus cavernous hemangioma.

Female↗
PubMed1998

Prenatal diagnosis of de novo interstitial 16q deletion in a fetus associated with sonographic findings of prominent coronal sutures, a prominent frontal bone, and shortening of the long bones.

De novo interstitial 16q deletion diagnosed in utero has not previously been reported. We present a case of fetal de novo interstitial 16q deletion associated with the sonographic findings of prominent coronal sutures, a prominent frontal bone, and shortening of the long bones. Genetic amniocentesis at 23 weeks' gestation revealed a de novo deletion of 16q13-q22. At birth, the fetus manifested a dysmorphic phenotype correlated with monosomy 16q syndrome. Linkage analysis of the family confirmed the maternal origin and the extent of the deletion. We suggest that prenatal detection of a prominent frontal bone with prominent cranial sutures and shortening of the long bones should prompt cytogenetic analysis looking for a deletion in the long arm of chromosome 16.

Adult↗