Chest CT is the most useful modality in the diagnosis of primary lung cancer, particularly in patients with recurrent pneumonia which are resistant to antibiotic therapy and in high risk age groups for cancer, The purpose of this examination is to assess the usefulness of CT in pneumonia types of lung cancer. The authors retrospectively analyzed 15 histologically proven cases of pneumonic type lung cancer, which had no evidence of primary lung mass, mediastinal lymphadenopathy or other metastatic lesion on piain chest radiography. On CT scan, a primary lung mass was identified in 13 patients(87%, bronchial obstruction was identified in 12 patients(80%), and metastatic foci was found in the bone(one patient), liver(one patient), and spleen(one patients). In Conclusion, CT scan is a useful method to detect the mediastinal lymphadenopathy or pulmonary mass and also should be the initial radiolographic procedure for diagnosis of lung cancer in patients with recurrent pneumonia on simple chest radiography.
Diagnosis ; Humans ; Lung Neoplasms* ; Lung* ; Lymphatic Diseases ; Methods ; Pneumonia* ; Radiography ; Retrospective Studies ; Thorax ; Tomography, X-Ray Computed

No abstract available.
Oropharynx* ; Tongue*

PURPOSE: To compare the results of posterior cruciate ligament reconstruction by open and arthroscopic method. MATERIALS AND METHODS: From 1995 to 1997, 18 reconstructions of posterior cruciate ligament were performed. Group 1 (open method) was composed of 9 cases and group 2 (arthroscopic method) was consisted of 9 cases. After 21-month follow-up, The two groups were compared by clinical and radiologic methods. RESULTS: Clinically, Lysholm knee score was 80 points in group 1 and 83 points in group 2 after operation. Post operative results by Hughston's criteria were good in 5, fair in 2 and poor in 2 cases (group 1) and good in 6, fair in 2 and poor in 1 cases (group 2). Radiologically, post operative average of posterior drawer stress view was 5.2 mm (group 1) and 5.0 mm (group 2). Almost double the operation time was taken to reconstruct posterior cruciate ligament by arthroscopic method than open method. There were technical errors in 2 cases performed by arthroscopic method. CONCLUSIONS: The results of both methods had no significant difference. We think that the reconstruction of PCL using patellar tendon by open method is a recommendable treatment method together with arthroscopic method, if the merits or demerits of both methods are considered carefully. But more long-term follow-up is necessary to compare the results of PCL reconstruction by open and arthroscopic methods.
Follow-Up Studies ; Knee ; Patellar Ligament ; Posterior Cruciate Ligament

Cobb syndrome is a rare neurocutaneous angiomatosis characterized by a vascular skin nevus associated with a spinal cord angioma of the same metamere. A 14-year-old girl had an asymptomatic large cutaneous hemangioma distributed from the TI dermatome downward to the L3 dermatome since birth and complained of a gait disturbance and urination difficulty for 1 year. A biopsy specimen in the skin lesion revealed the findings of capillary hemangioma. From C7 downward to L4 posterior epidural hemangioma composed of arteriovenous and cavernous components was diagnosed by radiological examination and surgical exploration. Because of very extensive cord hemangioma, only partial removal of the tumor at T11, T12 and L1 level was performed and postoperatively she was transferred to a special facility for rehabilitative therapy.
Adolescent ; Angiomatosis ; Biopsy ; Female ; Gait ; Hemangioma ; Hemangioma, Capillary ; Humans ; Nevus ; Parturition ; Skin ; Spinal Cord ; Urination

Inferior oblique myectomies or Z-myotomies were performed on 159 eyes of 121 patients who had an overacting inferior oblique muscle or muscles. The results were as follows; 1. Success rates were 95.5% in myectomy and 71.4% in Z-myotorny. 2. Recurrence rates were 2.7% in myectomy and 14.3% in Z-myotomy. 3. There were no other complications to include the adherence syndrome.
Adolescent ; Age Factors ; Child ; Child, Preschool ; Eye Diseases/*surgery ; Follow-Up Studies ; Humans ; Infant ; Oculomotor Muscles/*surgery ; Strabismus/complications

Iatrogenically developed immunosuppression-associated Kaposis sarcoma is the result of immunosuppressive therapy after an organ transplantation, particularly after a renal transplantation. Since the advent of powerful immunosuppressive agents such as cyclosporine, recently the incidence of Kaposis sarcoma has been increased. In addition to immunosuppression, other factors, such as genetic predisposition, environmental and geographic factors, and oncogenic viruses, may play a role in the pathogenesis of this tumor. Ilerein we report a case of Keposis sarcoma with multiple organ involvement of the skin, lung, small intestine and mesenteric lymph node in a renal allograft recipient who received cyclosporine and prednisolone. Reduction of the dosage of immunosuppressant for 1 month resulted in improvement of the cutaneous lesions.
Allografts* ; Cyclosporine ; Genetic Predisposition to Disease ; Geography ; Immunosuppression ; Immunosuppressive Agents ; Incidence ; Intestine, Small ; Kidney Transplantation ; Lung ; Lymph Nodes ; Oncogenic Viruses ; Organ Transplantation ; Prednisolone ; Sarcoma ; Sarcoma, Kaposi* ; Skin ; Transplants

PURPOSE: The objective of this study was to evaluate fracture strength of collarless metal-ceramic FPDs according to their metal coping designs. MATERIALS AND METHODS: Four different facial margin design groups were investigated. Group A was a coping with a thin facial metal collar, group B was a collarless coping with its facial metal to the shoulder, group C was a collarless coping with its facial metal 1 mm short of the shoulder, and group D was a collarless coping with its facial metal 2 mm short of the shoulder. Fifteen 3-unit collarless metal-ceramic FPDs were fabricated in each group. Finished FPDs were cemented to PBT (Polybutylene terephthalate) dies with resin cement. The fracture strength test was carried out using universal testing machine (Instron 4465, Instron Co., Norwood MA, USA) at a cross head speed of 0.5 mm/min. Aluminum foil folded to about 1 mm of thickness was inserted between the plunger tip and the incisal edge of the pontic. Vertical load was applied until catastrophic porcelain fracture occurred. RESULTS: The greater the bulk of unsupported facial shoulder porcelain was, the lower the fracture strength became. However, there were no significant differences between experimental groups (P > .05). CONCLUSION: All groups of collarless metal-ceramic FPDs had higher fracture strength than maximum incisive biting force. Modified collarless metal-ceramic FPD can be an alternative to all-ceramic FPDs in clinical situations.
Aluminum ; Bites and Stings ; Collodion ; Dental Porcelain ; Denture, Partial, Fixed ; Head ; Resin Cements ; Shoulder

BACKGROUND: Acromioclavicular (AC) stability is maintained through a complex combination of soft-tissue restraints that include coracoclavicular (CC), AC ligament and overlying muscles. Among these structures, the role of the CC ligament has continued to be studied because of its importance on shoulder kinematics, especially after AC injury. This study was designed to determine the geometric change of conoid and trapezoid ligaments and resulting stresses on these ligaments according to various scapular motions. METHODS: The scapuloclavicular (SC) complex was isolated from a fresh-frozen cadaver by removing all soft tissues except the AC and CC ligaments. The anatomically aligned SC complex was then scanned with a high-resolution computed tomography scanner into 0.6-mm slices. The Finite element model of the SC complex was obtained and used for calculating the stress on different parts of the CC ligaments with simulated movements of the scapula. RESULTS: Average stress on the conoid ligament during anterior tilt, internal rotation, and scapular protraction was higher, whereas the stress on the trapezoid ligament was more prominent during posterior tilt, external rotation, and retraction. CONCLUSIONS: We conclude that CC ligament plays an integral role in regulating horizontal SC motion as well as complex motions indicated by increased stress over the ligament with an incremental scapular position change. The conoid ligament is the key structure restraining scapular protraction that might occur in high-grade AC dislocation. Hence in CC ligament reconstructions involving only single bundle, every attempt must be made to reconstruct conoid part of CC ligament as anatomically as possible.
Biomechanical Phenomena ; Cadaver* ; Dislocations ; Ligaments* ; Muscles ; Scapula ; Shoulder

No abstract available.
Animals ; Cricetinae* ; Mice*

No abstract available.
Pregnancy, Heterotopic*