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Biomedical subjects

A Colak

Publications and source records attributed to A Colak.

51 records · Page 3Linked to original sources
PubMed1992

Meningiomas of the lateral ventricle. Report on six cases.

In this study 6 patients who had meningioma of the lateral ventricle are reviewed. The incidence is 1.8% of cases of meningiomas in our series. Microsurgical techniques were employed in all patients. There was no death and the follow-up period was between 5 months and 10 years. No recurrence was seen. Although the origin of these tumors is still not known, DUNN and KERNOHAN note that the choroid plexus has the potential for the production of meningothelial, fibrous, or mixed patterns. Our pathological results confirmed this suggestion.

Adult↗
PubMed1992

Congenital lumbosacral lipomas presenting as a form of occult spinal dysraphism. A report of 9 surgically treated cases.

Nine cases of congenital lumbosacral lipoma have been diagnosed and treated surgically at the Hacettepe University School of Medicine, Department of Neurosurgery during the last 16 years. Five patients were male and four female with ages ranging from 18 months to 30 years. The most frequent complaints were mass in the back (in five cases), motor weakness in the lower extremities (in five), urinary incontinence (in five), and lumbosacral hypertrichosis (in five). On neurological examination, four patients had deep tendon reflex changes, five had motor changes and four were normal. There was significant improvement in seven cases. Two had no improvement. In this report, we review nine patients retrospectively, and discuss the surgical intervention and the results achieved.

Adolescent↗
PubMed1991

Occipital depression fractures in childhood. A report of 14 cases.

In this paper, we present 14 cases with depression fracture of the occipital bone in pediatric age. There were 7 males and 7 females. Their ages ranged from 1 year to 15 years with a median of 5.8 years. The most common causes were: falling (8 cases); traffic accidents (2); assault (2 cases). Five of our 14 cases had compound fractures and the remaining 9 had closed fractures. Epidural and subdural hematomas were observed in 5 and 1 cases, respectively. There was significant improvement in 11 cases; two patients died.

Adolescent↗
PubMed1991

Primary multiple cerebral hydatid cysts.

Primary multiple cerebral hydatid cysts are extremely rare: In this paper, an 8-year-old male patient who has one primary cerebral hydatid cyst in each cerebral hemisphere is presented. CT findings and operation are discussed. The literature is reviewed and the incidence of multiple cerebral hydatid cyst is compared with the published reports.

Brain Diseases↗
PubMed1991

CNS involvement in Ewing's sarcoma. A report of 12 cases.

Ewing's sarcoma is one of the malignant bone tumours, which occurs in various bones of the body. When the spinal column or skull bones are involved, it may cause spinal cord compression or brain invasion. In this study, 12 cases of Ewing's sarcoma with central nervous system (CNS) involvement are presented. Seven of them were male and five female. In seven of the cases tumoural mass was located in the spinal column, whereas in the others it was found in the cranium. The major complaints were motor weakness in the lower extremities in seven cases, and a mass on the cranial vault in four cases. On neurological examination, eight of the patients had impairment of movements of the extremities (67%), and seven had sensory loss (58%). All except one patient underwent surgery. In seven cases, decompressive laminectomy plus subtotal tumour excision was performed, in three, craniectomy with grossly total tumour excision, and in one, biopsy. In this report, age and sex distribution, complaints, clinical and laboratory findings, neurological examination, and histopathology of our cases are reviewed and surgical results are compared with others reported in the literature.

Adolescent↗
PubMed1991

Unusual location of histiocytosis X. Presenting as a petrous apex syndrome.

The authors describe a case of histiocytosis X of the petrous bone presenting as petrous apex syndrome. The clinical, radiological, and histopathological features are discussed, and the pertinent literature is reviewed. To our knowledge, histiocytosis X of the petrous apex has previously been reported to cause this syndrome in only two cases.

Adolescent↗
PubMed1991

Intracranial extension of meibomian gland carcinoma.

Meibomian gland carcinomas are rare, slow-growing masses that clinically mimic several benign and malignant processes. We report a patient with sebaceous carcinoma of the meibomian gland with intracranial extension and dural invasion, and discuss the clinical and pathological features of this uncommon entity.

Brain Neoplasms↗
PubMed1991

Pontine hematoma. A report of three surgically treated cases.

Untreated pontine hematoma is always fatal, while surgical evacuation is effective and safe. After surgical intervention, immediate improvement and full or nearly full recovery may be observed. In this report, three successfully removed pontine hematomas are presented. The cause of this pathological entity, surgical interventions and their results are discussed and cases reported in the literature are reviewed.

Adolescent↗
PubMed1990

Papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess presenting as cavernous sinus syndrome. A case report.

Primary carcinoma of the sphenoid sinus is a rare tumor that may present with dramatic neuro-ophthalmological-symptoms and signs of which spheno-cavernous syndrome is the best known clinical entity. The most frequently encountered histological types of the sphenoid carcinomas are squamous cell carcinoma and papillary carcinoma, in decreasing order of frequency. In this article, a papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess is presented. We are not aware of previously reported papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess presenting as a cavernous sinus syndrome.

Abscess↗
PubMed1989

Spinal cord compression caused by plasmocytomas. A retrospective review of 14 cases.

Plasmocytoma is a plasma cell tumor, which occurs in various structures of the body. When the spinal column is involved, it may cause cord compression. In this study, 14 cases of spinal plasmocytomas are presented. Seven of them were male and seven female. The major complaints were pain in twelve cases, motor weakness in eight cases, and bladder disturbance in six cases. On neurological examination, twelve of the patients had impairment of extremity movements (85.7%), and eight had sensory losses (57.1%). Compression was more frequent in the thoracic region. There was a total block in nine and partial block in five cases. All patients underwent surgery. In thirteen cases laminectomy was performed, in one thoracotomy. In this report, complaints, clinical and laboratory findings, neurological examination, and histopathology of our cases are reviewed and the results discussed.

Adult↗
PubMedDate not supplied

Epidural metastasis of testicular yolk sac tumor: an unusual cause of spinal cord compression. Case report.

Testicular tumors in the pediatric age group are rare. Yolk sac tumor (YST) is the most common malignant tumor of germinal origin in this group, and it may spread to the retroperitoneal lymph nodes. We have been unable to find any previously published report of metastasis of testicular YST to the epidural space of the spinal cord presenting as a cause of spinal cord compression.

Child, Preschool↗
PubMedDate not supplied

Refugee children in Canada: searching for identity.

Canada is providing a new home to refugees from around the globe, who have left their countries of origin because of persecution and are seeking safety elsewhere. These families bring with them myriad stresses arising from their migration. Child refugees, in particular, have special needs that must be considered--trauma from witnessing violent crimes, language difficulties, family disruption, and adjustment to a different culture--in addition to the challenges that accompany childhood and growing up.

Adaptation, Psychological↗
PubMedDate not supplied

Craniosynostosis: a review of 143 surgically-treated cases.

In this study, 143 cases of craniosynostosis are presented. There were 109 males and 34 females. The major complaints were skull deformity (92 patients), proptosis (38 patients) and microcephalus (32 patients). Neurological examination revealed the presence of optic atrophy in 24 patients and papilledema in 20 patients. Seventy-four patients (53%) had three or more suture closures, with the sagittal suture being the most commonly involved (20% of patients). All patients underwent surgery. Suture removal was performed in 131 patients (91.7%), suture removal plus orbital decompression in 34 (23.8%), and linear craniectomy plus wrapping in 12 (8.3%). The reoperation rate was 6.2 percent. During the follow-up period, preoperative papilledema and proptosis improved in 88.2 and 78.9 percent of patients, respectively. Skull deformity disappeared in 46.9 percent of patients, but remained unchanged in 16.6 percent.

Child↗