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Biomedical subjects

M L Pinstein

Publications and source records attributed to M L Pinstein.

At least 19 recordsLinked to original sources
PubMed1991

Herpes simplex virus hepatitis in pregnancy. Two patients successfully treated with acyclovir.

Two cases of herpes simplex virus hepatitis in pregnancy are presented. Each case was characterized by extremely high serum aminotransferase levels with minimal bilirubin elevation. In both cases, liver biopsy was instrumental in arriving at the diagnosis. In addition, computed tomography showed a radiographic appearance of the liver not characteristically seen in other hepatic disorders of pregnancy. A high index of suspicion in the second case led to early recognition and treatment. Despite the presence of fulminant liver failure and evidence of herpes encephalitis in the other case, institution of therapy with acyclovir was associated with complete recovery in both patients. The present cases are compared and contrasted with the literature. The incidence of two cases within a 6-month period suggests that herpes simplex virus hepatitis in pregnancy may occur more frequently than previously reported.

Acyclovir↗
PubMed1989

Neurogenic pulmonary edema: new concepts of an old disorder.

Neurogenic pulmonary edema remains an enigmatic disorder that may be difficult to diagnose. Initial roentgenographic findings may suggest the diagnosis in previously unsuspected cases when the clinician is aware of the entity and its pathologic findings. The only radiologic clue may be very homogeneous consolidation with prominent air bronchograms, findings that would be unusual in cardiogenic pulmonary edema. The precise pathogenetic mechanisms remain speculative.

Adult↗
PubMed1987

Non-traumatic atlantoaxial subluxation in an adult secondary to retropharyngeal abscess.

Non-traumatic atlantoaxial subluxation in an adult due to retropharyngeal abscess has been only sporadically reported. This article presents such a case treated non-surgically, with discussion of clinical presentation, diagnosis, pathogenesis, and treatment. The differential diagnosis of non-traumatic atlantoaxial subluxation is presented for review.

Abscess↗
PubMed1986

The differential retrocardiac air-fluid level: a sign of intrathoracic gastric volvulus.

A single retrocardiac air-fluid level on a chest radiograph typically implies the presence of a sliding hiatal hernia. A differential retrocardiac fluid level (two air-fluid interfaces at different heights) suggests not a simple sliding hiatal hernia but rather an intrathoracic gastric volvulus. Simultaneous fluid levels above and below the diaphragm are not required to make the diagnosis. We have seen four patients with chronic gastric volvulus confirmed by upper gastrointestinal barium examination. Each case was diagnosable on the basis of the chest radiographs obtained on admission, using the radiographic sign described above. We draw attention to this sign because chronic gastric volvulus has the potential to progress to acute volvulus and gastric ischemia or infarction.

Aged↗
PubMed1985

Isolated left thoracic isomerism.

Left thoracic isomerism may present as an isolated anomaly without symptoms. The chest radiograph demonstrates characteristic right hilar findings that may be misinterpreted as a hilar mass. Computed tomography of the chest is recommended to confirm the correct diagnosis.

Humans↗
PubMed1985

Middle lobe torsion following right upper lobectomy.

A case of middle lobe torsion occurring after a right upper lobectomy is described. The appearance of a wedge-shaped opacity with a characteristically positioned oblique fissure should alert the radiologist to the possibility of torsion. The combination of radiographic, bronchoscopic, and clinical findings should direct the clinician to the correct diagnosis.

Female↗
PubMed1983

Avoidance of negative percutaneous lung biopsy using contrast-enhanced CT.

Fluoroscopically guided percutaneous biopsy of pulmonary masses is an accepted procedure, but large neoplasms often have necrotic areas which, if aspirated, do not afford a pathologic diagnosis. Such tumors may require multiple punctures or procedures to establish a diagnosis. A prebiopsy contrast-enhanced CT scan selectively demonstrates the extent of peripherally located, viable tumor tissue. Three cases of initially frustrated lung biopsies in which viable, diagnostic tissue was localized for fluoroscopic aspiration using the contrast-enhanced CT scan are presented.

Biopsy, Needle↗
PubMed1983

Fluid-level motion artifact in computed tomography.

Ingestion of oral contrast material as a routine part of abdominal computerized tomographic scanning creates numerous gas and fluid interfaces within the gastrointestinal tract. Following deep inspiration or expiration, fluid motion induced by shifting intra-abdominal contents persists for several seconds. This causes radial streak artifacts to arise from air-fluid interfaces, even though respiration is suspended while the scan is made. Such artifacts can be reduced if the beginning of a scan is delayed to allow fluid motion to stop. An alternative is to re-scan an area of interest in the lateral decubitus position so as to shift air-fluid levels and their associated artifacts away from any region in question.

Contrast Media↗
PubMed1980

Aortic dissection manifested as leg ischemia.

The ischemic leg as the only clinical manifestation of an aortic dissection is rare. Without the usual symptoms of an aortic dissection, this diagnosis may easily by overlooked during routine peripheral angiography for the ischemic limb. Three cases are reviewed in which the patient was thought to have a spontaneous peripheral vascular occlusion, but was later found to have an aortic dissection without the usual thoracic or abdominal symptoms. The radiologist should observe carefully for signs of dissection such as fusiform narrowing of a vessel, nonfilling of branches of the aorta, or displacement of the intima into aortic lumen.

Aged↗