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INTRODUCTION: Ureteral intussusception is a rarely reported condition, primarily as a complication of ureteric tumours. Fewer than 30 case reports have been made. This case represents the first reported case, to our knowledge, of ureteral intussusception caused by a ureteric calculus. PRESENTATION OF CASE: We present the case of a 70 year old man with a history of conservatively managed renal calculi, in whom obstructive ureterolithiasis was incidentally detected. Retrograde pyelography and ureteroscopy revealed intussusception of the ureter around a calculus. Extensive biopsies revealed no evidence of tumour, and the intussusception resolved following stone clearance. DISCUSSION: Literature review of previously reported cases of ureteral intussusception revealed 26 cases, of which 22 were secondary to tumour and 4 were secondary to surgical procedures. We propose a mechanism by which calculus-related ureteral intussusception may occur, and suggest treatment for this condition. CONCLUSION: Calculus-related ureteral intussusception is a rare condition, of which this represents the only case report. Management of the condition should involve excluding the presence of tumour, and then clearing the stone, avoiding the use of a basket for retrieval of fragments.
RESUMEN
BACKGROUND AND PURPOSE: Diagnosis and management of Cushing's syndrome is a challenge to the endocrinologist. This retrospective study investigated the etiology, clinical presentation, treatment and prognosis of endogenous Cushing's syndrome and compared the differences of prognostic factors between Cushing's disease patients with macroadenoma and microadenoma. METHODS: Data on disease history, physical examination, and biochemistry of Cushing's syndrome and factors related to the prognosis of Cushing's disease were analyzed. RESULTS: A total of 61 consecutive patients (52 women and 9 men) with endogenous Cushing's syndrome treated from January 1992 to July 2002 were included in this study. They comprised 31 cases of adrenal adenoma, 19 cases of Cushing's disease, 6 cases of ectopic adrenocorticotropin (ACTH) syndrome, 3 cases of adrenal carcinoma, 1 case of macronodular hyperplasia, and 1 case of micronodular hyperplasia. ACTH-independent Cushing's syndrome was the most frequent etiology in this series. The most common symptoms and signs were moon face (89%), weight gain (74%), buffalo hump (74%), and truncal obesity (72%). Hypercholesterolemia was noted in 27 of 45 patients (60.0%) checked for total serum cholesterol level. Elevation of serum lactate dehydrogenase was found in 29 (74.3%) of 39 patients assessed. Patients with adrenal adenoma had the highest cure rate. High residual (2/17, 11.8%) and recurrent rates (5/17, 29.4%) were found in patients with Cushing's disease. There were no significant differences in prognostic factors between Cushing's disease patients with macroadenoma and microadenoma. CONCLUSIONS: ACTH-independent Cushing's syndrome was the most frequent type of Cushing's syndrome in this series. The dyslipidemia and elevation of lactate dehydrogenase activity in this series indicated the need for routine laboratory testing in Cushing's syndrome patients. This study found no significant differences in prognostic factors between Cushing's disease patients with macroadenoma and microadenoma.
