Histopathologic diagnosis of a papillary renal cell carcinoma with lung metastasis

Authors

  • Brenda Martínez Luna Universidad Autónoma del Estado de Hidalgo
  • Claudia Roche Albernas Hospital Clínico Quirúrgico Hermanos Almeijeiras
  • Ernesto Arteaga Hernández Hospital Clínico Quirúrgico Hermanos Almeijeiras

Keywords:

renal cell carcinomas, lung metastasis, immunohistochemistry.

Abstract

Introduction: Renal cell carcinomas accounts for 90% of all renal malignancies. Patients with this diagnosis present flank pain, hematuria and palpable abdominal mass. However, most diagnoses are made by incidental imaging findings.

Objective: To demonstrate the importance of immunohistochemistry for the diagnosis of renal carcinomas with cellular characteristics of difficult differentiation and their metastasis.

Case presentation: The case is reported of a 53-year-old man who presented paresthesia of the lower limbs. Radiological imaging revealed an intramedullary tumor and, incidentally, a pulmonary tumor and a renal cystic image. An initial lung biopsy was performed followed by a histopathological study of the renal cyst through histochemistry, which showed a poor differentiation of the analyzed tissue. Immunohistochemical markers were also determined: CK7, AMARC, RCC, CD10, EMA, CK20, TTF1 and CD117.

Results: The immunohistochemical evidence allowed defining the diagnosis of papillary renal cell carcinoma type 2 with lung metastasis.

Conclusions: This studied showed how the immunohistochemistry technique defines the type of renal cell carcinomas with little differentiation and their metastases.


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Author Biographies

Brenda Martínez Luna, Universidad Autónoma del Estado de Hidalgo

Lic en Médico Cirujano. Residente de primer año de la especialidad en Anatomía Patológica.

Claudia Roche Albernas, Hospital Clínico Quirúrgico Hermanos Almeijeiras

Especialista en 2do grado de Anatomía Patológica y Profesor Asistente

Ernesto Arteaga Hernández, Hospital Clínico Quirúrgico Hermanos Almeijeiras

Especialista en 2do grado de Anatomía Patológica, Master en Citopatología y Profesor Auxiliar.

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Published

2022-07-14

How to Cite

1.
Martínez Luna B, Roche Albernas C, Arteaga Hernández E. Histopathologic diagnosis of a papillary renal cell carcinoma with lung metastasis. Acta Médica [Internet]. 2022 Jul. 14 [cited 2025 May 19];23(2). Available from: https://revactamedica.sld.cu/index.php/act/article/view/271

Issue

Section

Presentación de caso