[en] This paper reports a case of sternal osteomyelitis and costochondral fistula infection following sternotomy. The computed tomography is very useful in the evaluation of this postoperative complication. (author)

[en] The author studied age and sex distribution, etiology, affected site and several radiographic features of osteomyelitis of the jaw. And radiologic classification of osteomyelitis was also done. The material consisted of 118 males and 96 females examined and/or treated under the diagnosis of osteomyelitis during past 11 years (1970-1980.6) in SNUDH. The obtained results were as followings. 1. The incidence is the highest in teen ages (22.9%) and the lowest in seventies. (2.8%). 2. 199 cases were found in lower jaw, and 15 cases in upper jaw. 30.8% of all cases were located at the posterior portion of mandibular body comprising alveolar region. 3. Radiographic examination of osteolytic lesion revealed that 21.5% of all patients had periapical and alveolar bone rarefaction combined with osteoporotic changes were present at the same time. 4. Sclerotic lesions were seen in 62.2% of all patients and 21.5% of sclerotic lesion were diffuse or homogenous type. 5. Based on the radiologic study, classification of the osteomyelitis of the jaw was made. Localized osteolytic type was the highest in incidence (38.8%) and localized sclerotic type was the lowest (7.0%).

[en] Radiographic measurements on the which of mandibular cortical plate and the lamina dura and on the root length were done in 42 patients who were in long-term Dilantin medication. Osteoporosis and root abnormalities were also investigated. The obtained results were as follows: 1. The number of male patients was greater than that of female patients. 2. The width of mandibular cortical plate was thinner in patient group than in control group. 3. There was no significant change in the width of lamina dura between the patient group and control group. 4. The root length of patient group was generally shorter than that of control group. 5. There were evidence of generalized mandibular osteoporosis and alteration in mandibular canal wall in 8 patients. (19%) 6. In Dilantin induced osteomalacia, the radiographic changes of mandibular canal wall and mandibular cortical plate were prominent, but that of lamina dura was not significant.

[en] We present a case of acute osteomyelitis in a 5-year-old boy, focusing on the value of ultrasonography (US) as a diagnostic method in the early stages of the disease, when the clinical evidence is nuclear and other diagnostic tests may reveal nonspecific findings or none at all. (Author) 7 refs

[en] An osteoma is a relatively common benign mass found in paranasal sinus lesions and is usually asymptomatic. On the other hand, pneumocephalus associated with a frontal or ethmoid sinus osteoma is rare and may cause serious complications. We present a case of pneumocephalus associated with a frontoethmoid sinus osteoma and porencephaly along with a literature review

No abstract available

[en] The first role of radiologist concerning with tumors or tumor like lesions of bone is to differentiate natures of their benignancy or malignancy. It is true that there were much of difficulties to distinguish osteomyelitis from malignant lesions radiographically. Although there is no single periosteal reaction that is unique for any disease process, we had confirmed a certain periosteal reaction, that is, a lamellar nodular pattern, might aid to differentiate osteomyelitis from malignant bone tumor. The thirty patients of acute osteomyelitis in whom the follow-up studies were possible, eighteen patients with osteosarcoma and five patients with Ewing's sarcoma were retrospectively evaluated : periosteal reactions in acute osteomyelitis (30 cases) undergo changes in their appearance that can be categorized : thin solid (18 cases), Codman's triangle (2 cases), no periosteal reaction (10 cases) in early phase ; lamellated (7 cases) and lamellar nodular patterns (7 cases) in the course of the disease with pronounced reactive osteoblastic change in the medullary cavity ; in chronic forms (14 cases), cortical thickening (11 cases), cortical thickening with involucrum (2 cases) and cortical thickening with sequestrum (1 case) were noted. In 18 cases of osteosarcoma were included : thin solid (1 case), lamellated (2 cases), sunburst (5 cases), and Codman's triangle (2 cases) ; combined forms (5 cases) i.e., thin solid and lamellated (1 case), lamellated and sunburst (2 cases), sunburst and Codman's triangle (1 case), lamellated, sunburst and Codman's triangle (1 case) ; and no periosteal reaction (3 cases). 5 cases of Ewing's sarcoma showed sunburst (1 case), interrupted periosteal reaction (1 case), and no periosteal reaction (3 cases). It is advised when a lamellar nodular periosteal reaction appeared with reactive osteoblastic reaction in the host bone, even though their looking might be suggested to aggressiveness of the lesion, it should be considered osteomyelitis rather than malignant bone tumors such as osteosarcoma or Ewing's sarcoma

[en] We report a case of a 49-year-old female who developed a bronchopneumonia associated with atelectasis of the upper right lobe and back pain of bone origin. Bronchoscopy revealed an endobronchial mass at the origin of the right upper lobe bronchus. Scintigraphy showed three paravertebral spots of the seventh and eighth thoracic vertebrae, without any radiological modification. Culture of lung tissue obtained by trans-parietal punction under CT scan control became positive to Nocardia belonging to the pneumoniae complex. Positive diagnosis of pulmonary nocardiosis associated with two rare localizations was set, one was an endobronchial mass, the other was osteomyelitis of the posterior chest wall. The patient was treated with Trimethoprim ulfamethoxazole and recovered completely. (author)

[en] The aim of this article is to review a group of lesions associated with periodontal ligament (PDL) widening. An electronic search was performed using specialized databases such as Google Scholar, PubMed, PubMed Central, Science Direct, and Scopus to find relevant studies by using keywords such as “periodontium”, “periodontal ligament”, “periodontal ligament space”, “widened periodontal ligament”, and “periodontal ligament widening”. Out of nearly 200 articles, about 60 were broadly relevant to the topic. Ultimately, 47 articles closely related to the topic of interest were reviewed. When the relevant data were compiled, the following 10 entities were identified: occlusal/orthodontic trauma, periodontal disease/periodontitis, pulpo-periapical lesions, osteosarcoma, chondrosarcoma, non-Hodgkin lymphoma, progressive systemic sclerosis, radiation-induced bone defect, bisphosphonate-related osteonecrosis, and osteomyelitis. Although PDL widening may be encountered by many dentists during their routine daily procedures, the clinician should consider some serious related conditions as well

[en] Osteomyelitis can present as a significant diagnostic problem in medicine. Knowledge of the presence and extent of infection involving bone is important in determining treatment. In this paper the authors review the role played by radiopharmaceutical techniques in establishing the diagnosis of osteomyelitis. Osteomyelitis has been recognized as one of the most serious complications of emergency surgery to repair severe bone trauma. It is also a complication of surgery for prosthesis placement. In still other instances, osteomyelitis can be of hematogenous origin, without a major wound site. Unlike other infections, it rarely presents with acute symptoms. Osteomyelitis is divided into two categories that are time related: acute, in which clinical signs and symptoms of bone infection have been present for less than 1 month, and chronic, in which symptoms have been present for more than 1 month. The acute type is usually caused by Staphylococcus aureus in children (often secondary to skin infection), whereas in adults it can be secondary to intravenous drug abuse. Predisposing factors such as diabetes mellitus, peripheral vascular disease, and sickle cell disease are important to the outcome of osteomyelitis. One way to determine the microbe causing the infection is direct bone biopsy from the site of suspected osteomyelitis. There is one important limitation for needle biopsy in the diagnosis of osteomyelitis. Biopsies are contraindicated in the small bones of the hands and feet, because of risk of pathologic fracture (and may be relatively contraindicated after diphosphonate therapy and loss of bone mineral)