Spontaneous regression of multiple pulmonary nodules in a patient with unclassified renal cell carcinoma following laparoscopic partial nephrectomy: A case report

Ueda,Kosuke; Suekane,Shigetaka; Mitani,Tomotaro; Chikui,Katsuaki; Ejima,Kazuhisa; Suyama,Shunsuke; Nakiri,Makoto; Nishihara,Kiyoaki; Matsuo,Mitsunori; Igawa,Tsukasa

doi:10.3892/mco.2016.900

July-2016 Volume 5 Issue 1

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July-2016 Volume 5 Issue 1

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Case Report

Spontaneous regression of multiple pulmonary nodules in a patient with unclassified renal cell carcinoma following laparoscopic partial nephrectomy: A case report

Authors:
- Kosuke Ueda
- Shigetaka Suekane
- Tomotaro Mitani
- Katsuaki Chikui
- Kazuhisa Ejima
- Shunsuke Suyama
- Makoto Nakiri
- Kiyoaki Nishihara
- Mitsunori Matsuo
- Tsukasa Igawa
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Affiliations: Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka 830‑0011, Japan
Pages: 49-52
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Published online on: May 11, 2016

https://doi.org/10.3892/mco.2016.900
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Abstract

Spontaneous regression of metastatic renal cell carcinoma (RCC) is rare, but well-documented in clear cell RCC. However, there are no reports on spontaneous regression of unclassified RCC. Since the radiological findings of pulmonary infarcts and inflammatory pseudotumors are similar to those of metastases from RCC, a definitive diagnosis is difficult without performing a histological examination. A 56‑year‑old woman underwent medical examination by a physician. An abdominal computed tomography (CT) scan revealed a 22‑mm mass with a cystic area in the right kidney, as well as multiple enlarged lymph nodes in the common iliac, external iliac and groin areas, bilaterally. A chest CT revealed multiple pulmonary nodules bilaterally, the largest measuring 15 mm. Since the right renal tumor was suspected to be an RCC, laparoscopic partial nephrectomy was performed. The final pathological diagnosis of the renal tumor was unclassified RCC. One month following surgery, a CT scan revealed spontaneous regression of the pulmonary nodules. We herein present a rare case of spontaneous regression of pulmonary nodules in a patient with unclassified RCC following laparoscopic partial nephrectomy. To the best of our knowledge, this is the first case of spontaneous regression in unclassified RCC.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Spontaneous regression of multiple pulmonary nodules in a patient with unclassified renal cell carcinoma following laparoscopic partial nephrectomy: A case report

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