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M C Ruchman

Publications and source records attributed to M C Ruchman.

4 recordsLinked to original sources
PubMed1984

Contrast sensitivity measurements in acute and resolved optic neuritis.

We measured contrast sensitivity by means of Arden grating plates in 41 eyes with acute optic neuritis and in 51 eyes with resolved optic neuritis. The scores were abnormal in 93% of eyes in the acute phase and 78% in the resolved phase irrespective of visual acuity. Even when acuity improved to 6/7.5 or better with resolution of the neuritis, 67% of eyes still showed abnormal contrast sensitivity. Since Snellen acuity represents just one point at the high spatial frequency end of the contrast sensitivity function, a patient in whom acuity improves to 6/6 with resolution of optic neuritis may still have difficulty seeing objects of lower relative contrast or at lower spatial frequencies.

Acute Disease↗
PubMed1983

Cavernous hemangiomas of the orbit.

Patients with cavernous hemangioma of the orbit seen at the Wills Eye Hospital for the 10-year period, 1972-1981 were reviewed in a retrospective manner. This benign vascular tumor most typically presented as unilateral painless proptosis in a middle-aged woman. The duration of symptoms was between 6 months and 2 years. CT scanning demonstrated a well-circumscribed, homogeneous tumor without bony erosion. Ultrasonography typically showed good sound transmission with moderate internal reflectivity. It is not possible to distinguish clinically a benign cavernous hemangioma from the rare and potentially lethal hemangiopericytoma. Since recurrence and metastasis of hemangiopericytoma may be related to incomplete excision, fastidious dissection and removal of all tumors thought to be cavernous hemangioma before surgery is advised for fear the final pathology may indicate hemangiopericytoma.

Adult↗
PubMed1976

Skip areas in temporal arteritis.

Segments of temporal arteries removed from patients with the characteristic systemic findings of temporal arteritis were studied to determine whether they showed "skip areas" lacking evidence of granulomatous inflammation, as has been frequently described in this disease, or showed diagnostic evidence of inflammation throughout the entire length of the artery. Eleven temporal artery specimens from ten patients were included in this study. Sections from areas of each specimen had previously been found to contain typical granulomatous inflammation. Nine of these biopsy specimens contained granulomatous inflammation throughout their entire length. Two specimens each had two discrete areas of granulomatous inflammation adjoining segments that lacked evidence of epithelioid or giant cells. These "skip areas" showed diffuse round-cell infiltration of the adventia or lacked evidence of inflammation entirely. This series suggests that "skip areas" in temporal arteritis do occur.

Aged↗