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A case with a midline dermoid cyst of the frontal bone away from the anterior fontanel is reported. Although a few such cases have been reported, detailed descriptions are not given. Possible intracranial extension of these lesions is discussed with review of the pertinent literature.
Desmoplastic fibroma is a benign but locally aggressive tumor arising usually from the mandible, pelvis and long bones with a potential for recurrence. We report a case of desmoplastic fibroma of the frontal bone in a young male.
A case of an aneurysmal bone cyst of the skull is presented. To date, six cases involving the frontal bone have been reported in the literature. We review the clinicopathological features, investigative procedures and management options of this rare calvarial tumour.
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The paper describes a case of osteomyelitis of the frontal bone after exeresis of the first trigeminal branch, which was postoperatively precipitated probably by chronically relapsing hordeola. General principles of skull-cap osteomyelitis are discussed, and conclusions are drawn form the case describe in the paper.
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The purpose of the present study was to ascertain whether artificial skull deformation, carried out during infancy, has an effect on the pneumatization of the frontal and maxillary sinuses and on the osseous structure of the frontal bone. Thus, two normal and 12 artificially deformed adult human skulls (12 males, two females) from the collection of pre-Columbian Peruvian skeletons and mummies in the Institute of Anthropology and Human Genetics (University of Munich) were investigated by computed tomography. These skulls had been excavated from four sites on the Peruvian coast: Las Trancas, Cahuachi. Pacatnamu, and Estaqueria. The volumes of the maxillary sinuses varied from 5.18 mL to 17.19 mL. Those of the frontal sinuses varied from zero to 6.21 mL. The artificial deformation of the skull, which occurred during infancy, had no influence on the size of the maxillary and frontal sinuses. There was also no difference in the average bone thickness of the os frontale; however, artificial deformation in infancy had an influence on the bone structure, resulting in a tremendous rarefication of the diploe of the frontal bones. Based on these findings we conclude that the various types of skull deformation instituted in infancy seem to exert no inhibitory effect on the pneumatization of either the frontal or maxillary sinuses.
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Four patients (aged 5, 8, 14, and 51 years at initial manifestation) with isolated eosinophilic granulomas of the orbital frontal bone displayed short symptomatic periods (two weeks to three months) and some combination of erythema of the lids, a soft, palpable anterior orbital mass, periorbital pain, and osteolytic bone lesions on roentgenography. The bone lesions roentgenographically exhibited irregular, serrated, and sclerotic margins, distinguishing them from the more oval appearance of dermoid cysts. Electron microscopy performed in one case disclosed the presence of Langerhans' granules in the cytoplasm of the histiocytes, indicating that the orbital disease is a mild form of "histiocytosis X" and a benign proliferation of a specific kind of histiocyte--the Langerhans' cell. On follow-up (two to 20 years), after incomplete curettage of two lesions coupled with low doses of postoperative radiotherapy, there was reconstitution of the bone defects, whereas more extensive surgery performed on the other two patients resulted in permanent but subclinical bone defects.
A case of recurrent pyogenic meningitis is reported. The focus for recurrent meningeal infection was frontal bone osteomyelitis secondary to a road accident which the patient sustained ten years earlier.
A blow sustained to the head while wrestling may produce frontal osteomyelitis and its complications, Pott's puffy tumor and epidural abscess. The symptoms may be minimal and may be manifested only by a mild headache and occasional stuffy nose. A 16-year-old boy was studied one month after a head injury sustained while wrestling, complaining only of recurrent headaches and fever. A fluctuant mass was found in the midfrontal area. Frontal sinusitis, subperiosteal abscesss epidural abscess, and frontal osteomyelitis were found at surgery. The frontal bone involved by the osteomyelitis was debrided, and the epidural abscess was evacuated.
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