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Rev. argent. coloproctología ; 29(1): 22-24, Sept. 2018. ilus
Article in Spanish | LILACS | ID: biblio-1015216

ABSTRACT

Introducción: Los leiomiosarcomas (LMS) son tumores raros del tubo digestivo, corresponden a neoplasias malignas originadas de células de músculo liso, representando sólo el 0,1% del total. La localización rectal se da en el 11% de los LMS, aunque representan menos del 1% de los tumores malignos colón- icos. En nuestro medio también es una patología de baja frecuencia. Objetivo: Exponer método diagnóstico, tratamiento, y resultado quirúrgico en paciente con LMS rectal. Caso Clínico: Paciente mujer, 53 años, atendida en el Hospital Padre Hurtado, gran tabáquica, que se presentó con un cuadro de 1 año de evolución de dolor perianal, defecación laboriosa y 3 episodios de rectorragia. Al examen físico presentaba al tacto rectal a 4 cm del margen anal una masa de ±2 cm de superficie irregular y de consistencia pétrea. Se realizó colonoscopía objetivando la masa tumoral y tomando biopsia la que se informó como LMS rectal, incluyendo resultados de inmunohistoquímica. Siguiendo con el estudio se realizó TAC y RNM. Se decide la intervención quirúrgica realizándose una resección anterior baja, sin incidentes durante la cirugía y con un buen postoperatorio. Conclusión: El leiomiosarcoma es de extrema baja frecuencia en nuestro país, con sólo pocos casos reportados. La confirmación diagnóstica es con biopsia e inmunohistoquímica. La cirugía sugerida en la literatura es la resección anterior baja, la que se realiza en este caso con buenos resultados. (AU)


Introduction: Leiomyosarcomas (LMS) are rare digestive tract tumors. It is a malignant tumor originated from smooth muscle cells, representing only 0.1% of the total. Rectal location is given in 11% of LMS, however, they represent less than 1% of all malignant colon tumors. It is a very infrequent tumor in our medium. Objective: Show the diagnostic method, treatment, and surgical result. Case Presentation: A 53-year-old female, treated in Padre Hurtado Hospital, heavy smoker, presented with a 1-year history of perianal pain, difficulty during defecation, and three episodes of rectal bleeding. Digital rectal examination showed a mass 4 cm from the anal margin of approximately 2 cm, of irregular surface, and very hard consistency. A colonoscopy was performed, objectivating the tumoral mass and taking a biopsy which was informed as a rectal LMS, including immunohistochemistry results. Continuing with the study, a CT-Scan and MRI were performed. Treatment of choice was surgery; a low anterior resection was carried out with no incidents during the surgery and a favorable post-operatory. LMS is extremely infrequent in our country, with only a few cases reported. Conclusion: Diagnostic confirmation is made through biopsy and immunohistochemistry. Surgery suggested by literature is low anterior resection, which was carried out in this case with good results. (AU)


Subject(s)
Humans , Female , Middle Aged , Rectal Neoplasms/surgery , Rectal Neoplasms/diagnosis , Proctectomy/methods , Leiomyosarcoma/surgery , Leiomyosarcoma/diagnosis , Leiomyosarcoma/pathology , Immunohistochemistry/methods , Magnetic Resonance Spectroscopy , Tomography, X-Ray Computed , Colonoscopy , Sex Distribution , Diagnosis, Differential
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