Primary Carcinoid Tumour with Ossification Masquerading as Calyx Stone in a Horseshoe Kidney

Lodding, Pär; Hugosson, Jonas; Hansson, Göran

doi:10.3109/00365599709030667

Cited by 25 publications

(40 citation statements)

References 24 publications

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“…The pathogenesis of renal carcinoid tumors remains under debate (5-9). Certain previous studies have attributed the genesis of this tumor to congenital renal abnormalities, while other studies have suggested that the tumor cells are derived from multipotential primitive stem cells, which are induced to neuroendocrine differentiation (10)(11)(12). Notably, in the present case, the ER and PR sex hormone receptors were strongly expressed in the tumor cells.…”

Section: Discussionsupporting

confidence: 51%

Primary carcinoid tumor of the kidney with estrogen and progesterone receptor expression

Lin

Gao

et al. 2015

Oncology Letters

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Abstract. Primary carcinoid tumors are uncommon neoplasms in the kidney. The current study presents a case of primary carcinoid tumor of the kidney in a 49-year-old female who suffered from painless gross hematuria for half a month. Left hydronephrosis, a horseshoe kidney and a space-occupying lesion of the left ureter were found by abdominal computed tomography scans and ultrasonic testing. Surgery was performed and an oval tumor was found under the left ureter; the tumor and left kidney were excised completely. The neoplasm was composed of solid nests of cells, trabeculae, adenoid structures and anastomosing cords in a loose and myxoid background. The tumor cells, which were consistent in volume, exhibited centrally oval nuclei with inconspicuous nucleoli, and eosinophilic finely granular cytoplasm. Upon immunohistochemical staining, the neoplastic cells were positive for AE1/AE3, vimentin, synaptophysin, chromogranin A, estrogen receptor and progesterone receptor, while being negative for epithelial membrane antigen, inhibin A, cluster of differentiation (CD)99, S-100 and CD10. Based on the histological characteristics, a diagnosis of primary carcinoid tumor of the left kidney was formed. The patient did not receive further treatment. The total follow-up period was 18 months after the surgery and repeated imaging examinations every 6 months revealed no recurrence.

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Section: Discussionsupporting

confidence: 51%

Primary carcinoid tumor of the kidney with estrogen and progesterone receptor expression

Lin

Gao

et al. 2015

Oncology Letters

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“…A review of the reported cases, however, suggests a better prognosis of NETs in HSK than in those arising in normal kidneys [4,5,7,8]. We were able to update the follow-up data of four previously reported cases of NETs in HSK [2,5,6,8] by contacting the authors.…”

Section: Discussionmentioning

confidence: 77%

“…We were able to update the follow-up data of four previously reported cases of NETs in HSK [2,5,6,8] by contacting the authors. The responses obtained confirmed the better prognosis of carcinoids in HSK even after follow-up periods of up to as much as 10 years.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Neuroendocrine Tumor in a Horseshoe Kidney

Motta¹,

Candiano²,

Pepe³

et al. 2004

Urol Int

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Renal neuroendocrine tumors (NET) are rare neoplasms of unknown histogenesis. To the best of our knowledge, 40 such cases have been described, 11 of which arising in horseshoe kidneys (HSK). We report an additional case of a NET associated with a HSK occurring in a 45-year-old man. A clinicopathological review of the reported cases together with an updated follow-up of such tumors arising in HSK is provided. The present data show that NET associated with HSK present a better prognosis than those occurring in normal kidneys, even over long-term follow-up periods.

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Renal carcinoid and horseshoe kidney: A frequent association of two rare entities—A case report and review of the literature

et al. 1998

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We report the case of a primary renal carcinoid tumor associated with a horseshoe malformation in a 43‐year‐old man who presented with testicular pain. The tumor was centrally located and purely solid and had features ascribed to hindgut neuroendocrine neoplasia. The relative risk of developing a carcinoid tumor in a horseshoe kidney is estimated to be ×82. J. Surg. Oncol. 1998;68:113–119. © 1998 Wiley‐Liss, Inc.

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Primary Carcinoid Tumour with Ossification Masquerading as Calyx Stone in a Horseshoe Kidney

Cited by 25 publications

References 24 publications

Primary carcinoid tumor of the kidney with estrogen and progesterone receptor expression

Primary carcinoid tumor of the kidney with estrogen and progesterone receptor expression

Neuroendocrine Tumor in a Horseshoe Kidney

Renal carcinoid and horseshoe kidney: A frequent association of two rare entities—A case report and review of the literature

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