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D F Cruess

Publications and source records attributed to D F Cruess.

60 records · Page 4Linked to original sources
PubMedDate not supplied

Intussuscepted colonic lipomas: loss of fat attenuation on CT with pathologic correlation in 10 cases.

BACKGROUND: To determine if infarction and necrosis is the cause of the confusing soft tissue density on CT within intussuscepting lipomas of the colon. METHODS: The clinical records, radiologic examinations, and pathologic specimens of all 13 cases of colonic lipomas collected from 1988 to 1994 studied by CT and surgically resected were retrospectively reviewed. Ten of these cases were associated with intussusception; the CT attenuation of the lead point was graded according to its relative fat/soft tissue density. Pathologic specimens were graded independently by a GI pathologist and graded according to the degree of infarction/fat necrosis. RESULTS: The lipomas ranged from 4 to 7 cm in diameter (mean = 5 cm). Only one case with intussusception, and all three cases without, demonstrated pure fat attenuation on CT and demonstrated pure fat histologically. One case demonstrated soft tissue attenuation and corresponded with the most severely infarcted specimen histologically; two cases with similar but less severe infarction/fat necrosis corresponded with less than 25% fat attenuation. These latter three cases were originally misinterpreted as malignancies rather than lipomas. Six cases maintained greater than 50% fat density and intermediate amounts of infarction/fat necrosis. CONCLUSION: Lipomas may have an atypical appearance when intussuscepted due to varying degrees of infarction/fat necrosis.

Adult↗
PubMedDate not supplied

Timing in the normal pharyngeal swallow. Prospective selection and evaluation of 16 normal asymptomatic patients.

A review of timing of pharyngeal events with radiography has been made. A prospective selection of normal asymptomatic patients presenting for a gastrointestinal evaluation was made and timing of 55 events in the videorecorded pharyngeal swallow in these patients was performed. Only 16 normal asymptomatic patients as defined for selection were found among 870 patients presenting for gastroesophageal examination. A detailed description of their timing observations is presented. The timing data were used to temporally order events in the pharyngeal swallow. This ordering of events in the pharyngeal swallow and the data upon which it is based are reported here in detail.

Adolescent↗
PubMedDate not supplied

Interobserver and method variability in tuberculin skin testing.

Accurate measurement and interpretation of tuberculin skin tests is essential both to avoid unnecessary prophylactic treatment with potentially hepatotoxic drugs and to ensure the proper institution of therapy in tuberculin-positive individuals. Although two methods are currently used for reading tuberculin skin tests, palpation and ballpoint, the optimal technique has not been established. We compared measurements obtained by each method on 101 patients tested with intermediate tuberculin purified protein derivative. Fifty-eight of these patients were also tested using Mono-Vacc. Excellent interobserver agreement among the five raters was demonstrated for both the palpation and ballpoint techniques. There was no significant difference between the two methods for any reader using the normal 10-mm cutoff point for a positive intermediate tuberculin purified protein derivative test. For any individual observer the decision as to whether the test was positive or negative was unaffected by the method in at least 93% of readings. We conclude that readings by physicians using palpation and ballpoint methods are comparable for clinical decision making.

Adolescent↗