Giant pheochromocytomas (Pheo) are rare entities requiring clinical suspicion coupled with strategic diagnostic evaluation to confirm the diagnosis. The majority of cases are discovered incidentally. The diagnosis consists of biochemical evaluation and imaging study to localize the mass.
View Article and Find Full Text PDFPheochromocytomas are rare tumors derived from chromaffin cells located in the adrenal and extra adrenal tissues. Pheochromocytomas are diagnosed biochemically and localized using different imaging modalities. The definitive management is surgical resection.
View Article and Find Full Text PDFIntroduction: Malignant transformation of perineal fistula in Crohn's disease has rarely been reported. The aim of this study is to define the patient's characteristics and clinical presentation of this rare disease.
Methods: A systematic review of case series and reports published in English language between 1950 and 2008 was conducted.
Background: The results of recent series suggest remarkable advantages of laparoscopic appendectomy over the conventional open appendectomy. To determine if clear advantages could be established, the charts of all patients admitted to our institution with a presumptive diagnosis of acute appendicitis and subsequent appendectomy were retrospectively reviewed.
Study Design: From January 1990 through June 1992, there were 300 conventional open appendectomies and 66 laparoscopic appendectomies performed.
Morphometric measurements were performed on pulmonary arteries in 58 patients with systemic sclerosis (20 limited cutaneous and 38 diffuse cutaneous involvement [21 with and 17 without renal crisis]) and age, race, and sex matched autopsy controls. Matched pairs analysis was employed. For arteries of all sizes, the area of the intima and percent luminal occlusion were greater in the limited and diffuse (no renal crisis) groups than in controls, and these differences were statistically significant for large and medium sized vessels.
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