Biomedical subjects
Publications and source records attributed to M Ataman.
Neoplasms of the trachea are rare. The fifth case of malignant fibrous histiocytoma that nearly obliterated the lumen is reported. It is one of the most frequent soft tissue sarcomas particularly in the extremities. It is very rare in the trachea. Treatment is mainly based on local resection. Postoperative radiotherapy seems of little value.
Tuberculosis rarely affects the middle ear cleft; therefore, except for those working in close association with respiratory physicians, the disease is a curiosity and not often considered in the differential diagnosis of otorrhea. The diagnosis is thus made too late, with resulting complications such as irreversible hearing loss and facial nerve paralysis. A case report and review of the literature are presented, emphasizing that tuberculosis should be considered in the differential diagnosis of chronic ear infection.
The Usher syndrome is a recessively inherited disorder characterized by the associated deficits of sensorineural hearing impairment and a progressive retinal degeneration called retinitis pigmentosa. A case of Usher syndrome is reported in a 22-year-old atopic patient with asthma. To our knowledge, such an association has not been described previously in the literature.
Pleomorphic adenoma, the most frequently seen tumour of the salivary glands, is extremely rare in the septum. In this publication a case of pleomorphic adenoma of the nasal septum is presented.
The clinical manifestations of Wegener's granulomatosis (WG) may be varied and easily overlooked. Awareness of distinguishing signs and symptoms allows early recognition and appropriate management. The body of literature dealing with the various facets of this disorder has grown in the past few years. Development of new diagnostic markers and successful therapies has rekindled interest in this disease. To assure early diagnosis and optimal prognosis the physician must maintain a high index of suspicion for WG. Although introduction of immunosuppressive therapy has dramatically improved the course of this disorder, treatment-related morbidity is often profound.
A 2-year-old patient with a recurrent endodermal sinus tumor of the nasopharynx is presented. After the first attempt to surgically excise the tumor it recurred, causing upper airway obstruction within 2 months. Combined treatment with surgery, radiotherapy and chemotherapy resulted in a disease-free survival of four years.
A case of an ameloblastic fibrosarcoma in the mandible is described. The primary tumor was seen in a 5-year-old child. In spite of repeated surgical interventions, the tumor recurred three times within a one and a half year period, but not metastases have been observed. The difficulties in arriving at a correct diagnosis for this rare tumor involving the mandible are discussed. The treatment of choice seems to be radical surgery.
Myxoma is a rare bone tumor of the jaws. The exact aetiology and pathogenesis of this tumor still remains obscure. The tumor is frequently seen in young adults and in the mandible. Enucleation or local curetting have been recommended in the literature as the treatments of choice, although some authors have suggested more radical procedures because of the recurrences. In this paper a case of myxoma of the mandible and a review of the literature is presented.
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Osteoma is the most common benign tumour of the nose and paranasal sinuses, and the frontal sinus is its most frequent location. This tumour may be discovered incidentally on radiographs, or may enlarge to produce symptoms and, rarely, complications referable to its location near the orbit and anterior cranial vault. A 61-year-old man presented with right proptosis was found to have a giant osteoma involving frontal sinus. The aetiology, presenting features, and treatment of this tumour are reviewed.
Orbital haemorrhage is an unusual and frustrating complication of ethmoid surgery. A case of reversible blindness which was due to intra-operative orbital haemorrhage occurring after intranasal ethmoidectomy is presented. Prevention and management of this kind of blindness can be reversed, if treated aggressively.
An auricular leiomyoma is reported. This neoplasm is extremely rare in the head and neck region. The clinical and histopathological features are discussed.
A case of a child with a biotinidase deficiency who had a laryngeal stridor as a leading symptom is presented. This rare disease is distressing for diagnosis but easily treatable, if recognized. This condition, unless suspect clinically, could easily be overlooked and unnecessary tracheotomy could be done.
An interesting and rare case of tuberculosis involving a parotid gland is discussed. Although pulmonary tuberculosis is not uncommon in Turkey, primary parotid gland involvement is rare. The patient was treated by parotidectomy and antituberculous chemotherapy.
Nine maxillary sinuses of 8 patients who had undergone Caldwell-Luc surgery (CWL) were injected with 100-125 microCi 99mTc-DTPA in 0.2 ml from the gingivo-buccal sulcus, passing through the canine fossa window. Sinus half-emptying times and percent contribution of the natural ostium (NO) and the naso-antral window (NA) to the clearance from the sinus were calculated, using time-activity curves as well as the activity of cotton wool plugs placed into the middle and lower conchae. Mean half-emptying times in patients in whom the mucosa had been removed were shorter than those in patients in whom it had been left in place. In the former group percent drainage through the NO was higher than that through the NA whereas in the latter group the opposite was the case. These findings are consistent with the thesis that if the mucosa is retained, the cilia continue their sweeping action towards the NO but if it is removed the NA gains importance in the drainage. This method is promising for the evaluation of maxillary sinus drainage following CWL.