Papillary adenocarcinoma of the renal pelvis in a child: Case report and brief review of the literature

Abstract

Tumors of the renal pelvis are not common in adults and are extremely rare in children. Forty-eight cases of adenocarcinoma of the renal pelvis have been reported, with only one patient under 32 years of age. We report the youngest patient (an 11 year old boy) diagnosed with this tumor and discuss our approach to therapy. We also review the literature with respect to the characteristics and histogenesis of this rare neoplasm.

Antithrombotic Therapy in Neonates and Children

“…Although rarely reported in the medical literature, the number of cases reported in the popular press appears to be increasing. 4,[55][56][57][58][59][60] There are only three case reports of pediatric UFH-induced osteoporosis. 61,62 In two of these, the at 4 to 6 h postbolus.…”

Primary Adenocarcinoma of the Renal Pelvis

“…Among the special types, pure squamous cell carcinoma is more frequent while adenocarcinoma is much less common, with a rate of 1% of all tumors. 1,2,4-8 Although infrequent, this is not a rare entity, having been described in more than 100 reports. However, the matter of its development in epithelium not originating from the endoderma still remains debatable.…”

Adenocarcinoma of the renal pelvis with vimentin‐positive intracytoplasmic inclusions

“…The majority of the reported cases of adenocarcinoma of the renal pelvis were, as in the present case, associated with calculi, 1,3,4 and chronic irritation or persistent inflammation, due to the presence of calculi, is suspected to be the cause of mucinous metaplasia of the renal pelvic mucosa, which can progress to neoplasia. 1,3,5 Most renal pelvic adenocarcinomas are of the intestinal type (tubulo‐villous or mucinous); 1,4 and non‐intestinal, papillary adenocarcinomas 2,6 occupy only 7%. 3 In the present case, the overall histopathological findings are consistent with adenocarcinoma of non‐intestinal, papillary type.…”

“…3 In the present case, the overall histopathological findings are consistent with adenocarcinoma of non‐intestinal, papillary type. This type of adenocarcinoma arises predominantly in a younger population, 2,6 and its prognosis is relatively favorable. 3…”