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Biomedical subjects

J Schiffer

Publications and source records attributed to J Schiffer.

At least 37 records · Page 2Linked to original sources
PubMed1992

The use of the transpillar posterolateral approach to resect cervical osteoid osteomas: operative technique and results.

Osteoid osteomas located in the cervical spine are a rare cause of cervical and shoulder pain. However, successful diagnosis of these tumors has become more frequent in the recent years. This is due to more available diagnostic modalities as well as to physician awareness of the possibility that such lesions can cause cervical pain syndrome. Resection of osteoid osteomas located close to the vertebral artery is often technically difficult, and poses significant risk to the patient. We describe resection of such tumors using a posterolateral transpillar approach in three patients. The advantage of this approach is the direct and relatively easy visualization of the tumor, without the need for an extensive dissection. The stability of the cervical spine is not compromised by this approach. However, extension of the operative field is difficult, should the need arise.

Cervical Vertebrae↗
PubMed1991

Intraosseous neurilemmoma of skull--single case report.

Intraosseous neurilemmoma is a rare benign tumour of the bone with characteristic radiological and histological features. The most common places of this tumor are mandible, sacrum and vertebral bodies. A case of a not previously reported location of this tumor in the vault of the skull is presented.

Biopsy↗
PubMed1990

Tangential low-velocity missile wound of the head with acute subdural hematoma: case report.

Tangential missile wounds of the head without skull fracture are a known entity. Usually, references in the literature indicate that this type of injury results from a high-velocity missile impact. We present a case of a tangential missile head wound caused by a low-velocity missile. As the range of fire was short, the quantity of energy that might be released could be equated with that released by a high-velocity missile fired from a much longer range. This possibility should be brought to the attention of clinicians as an essential element in this pre-treatment clinical evaluation. We propose a pathomechanical explanation for the development of the clinical state.

Acute Disease↗
PubMed1988

CSF fistula and tension pneumatocele 22 years after head injury.

An unusual case of CSF fistula and tension pneumatocele developing in a patient 22 years after a severe craniocerebral injury is reported. The patient had been asymptomatic during this long interval, but immediately after a minor head trauma massive rhinorrhea and diffuse pneumocephalus occurred. This was followed by the development of bifrontal tension pneumatocele with intracranial hypertension and neurological deterioration. The patient recovered after closure of the CSF fistula. The pathophysiological mechanism of this rare condition and the pertinent treatment are discussed.

Brain Concussion↗
PubMed1988

Dermoids of the posterior fossa. Case reports and review.

Three children are presented with dermoid cysts of the posterior fossa, one of the most common locations of dermoid. They were initially diagnosed as having abscesses. Clinical presentations included hydrocephalus and recurrent meningitis. A helpful clue for identification is a bony defect of the skull on plain film or on a bone-window at Computed Tomography (CT).

Abscess↗
PubMed1987

Delayed epidural hematoma. A review.

Since the CT has become the main diagnostic tool in head trauma, more cases of DEDH have become confirmed and published although some have been classified among other entities and under different criteria. This review tries to describe the characteristics of DEDH based on the cases previously published, as well as on three of our own cases. The entity is mainly radiological i.e. appearance of an epidural hematoma in a CT scan following up a previous one which has not shown this pathology. Although not specific, we have found some common features among the cases published. The patients are usually young people. The cause of many injuries is either a fall injury or involvement of a pedestrian in a road accident. Skull fracture under which the DEDH develops is the rule. DEDH is not found in the usual location of the classic epidural hematoma (the temporal fossa). Some of the patients developed DEDH after an earlier neurosurgical operation for evacuation of another traumatic mass lesion for urgent decompression. Others developed DEDH after medical treatment aimed at restoring normal blood pressure or reducing increased ICP. This main group of patients had other associated lesions, mainly intracranial. The others (including our case no. 1) were considered to have a skull fracture associated only with concussion of the brain, as the clinical picture changed or persistent headache developed, another CT scan was indicated and DEDH was then found. This group constitutes those patients in whom the prognosis is expected to be good or excellent. Keeping in mind the necessity for repeated CT scans in this group (we think the number will increase in the future), other patients will benefit from the awareness of the clinician of the importance of this diagnostic tool. CT scan is efficient, accurate and can be repeated at short intervals. It enables a correct diagnosis to be made in nearly 100% of cases of head trauma. Although this liberal use of CT may increase the number of negative scans, it will also increase the number of DEDH's diagnosable at an earlier stage.

Adult↗
PubMed1985

Intracranial and spinal multiple meningioma appearing after an interval of 22 years.

Multiple meningioma is a rare condition which usually occurs in one compartment of the neuraxis. Multiple meningiomas in different neuraxial compartments are an even rarer condition with only a few cases reported in the literature. We describe a case of a 72-year-old woman who developed a parietal meningioma and 22 years later a spinal meningioma. Both tumours were successfully removed.

Aged↗
PubMed1985

Posttraumatic meningioma.

This report concerns three patients with intracranial meningioma developing at the site of an old head injury with skull fracture. These cases, along with literature reports, suggest a causal relationship between head trauma and the subsequent development of meningioma.

Adult↗
PubMed1984

Cerebral arteriovenous malformation: papilledema as a presenting sign.

Papilledema as a presenting sign of arteriovenous malformation without evidence of a space-occupying lesion or hydrocephalus is an unusual finding. The pathogenetic theory that seems to explain such cases is the increase of cerebral blood volume leading to intracranial hypertension, thus resulting in papilledema. We present the case of a 31-year-old woman complaining of headaches, with papilledema as the only objective finding. Computed tomography scan and right carotid angiography demonstrated a right mid rolandic arteriovenous malformation. The lesion was totally removed under intraoperative angiographic control.

Adult↗