[A randomized controlled trial of preoperative oral immunonutrition in patients undergoing surgery for colorectal cancer: hospital stay and health care costs]. / Estudio prospectivo y randomizado sobre inmunonutrición oral preoperatoria en pacientes intervenidos por cáncer colorrectal: estancia hospitalaria y costos sanitarios.

BACKGROUND: The use of enteral formulas with immunonutrients in patients with gastrointestinal malignancies susceptible to surgery can reduce postoperative morbidity, at the expense of reduced infectious complications, with the consequent reduction in hospital stay and health care costs. MATERIAL AND METHODS: Prospective randomized study. 84 patients operated on a scheduled basis for resectable colorectal cancer were recruited. In the group YES IN Impact © Oral was administered for 8 days (3 sachets a day), compared with the NOT IN group who did not receive it. RESULTS: 40.5% (17) patients without immunonutrition suffered infectious complications vs. 33.3% (14) of YES IN. In patients with rectal cancer NOT IN, 50% (8) suffered minor infectious complications (p=.028). In each group (YES IN, NOT IN, colon and rectal cancer) when infectious complications were observed, the variables total hospital stay and costs doubled, with significant differences. These variables showed higher values in the group NOT IN compared with those who received immunonutrition, although these differences were not statistically significant. CONCLUSIONS: NOT IN patients suffered infectious complications more frequently than YES IN, with significant results in the subgroup of patients with rectal cancer. The total hospital stay and costs were slightly higher in the group not supplemented, doubling in each category significantly (YES IN, NOT IN, colon and rectal cancer), when infectious complications were observed.

[Amyand's hernia: a report of two cases and review of the bibliography]. / Hernia de Amyand: presentación de dos casos y revisión de la bibliografía.

BACKGROUND: Presence of the vermiform appendix in an inguinal hernia sac is an uncommon finding (1%), exceptionally rare if it's inflamed (0.13%). Clinically simulating incarcerated inguinal hernia and proper preoperative diagnosis is exceptional. We present two unusual cases of Amyand's hernia, and review of the bibliography. CLINICAL CASES: 1. Male patient 78 year old with an incarcerated right inguinal hernia which was performed preoperatively the diagnosis of Amyand's hernia by abdominal Computed Tomography. Clinical case 2. Female patient 82 year old with symptoms of an incarcerated right femoral hernia that finally showed an Amyand's hernia through a right inguinal hernia. CONCLUSIONS: Amyand's hernia is a rare entity whose preoperative diagnosis is uncommon, that it should always be considered in the differential diagnosis in cases with clinical signs of incarcerated right inguinal hernia.

Antecedentes: encontrar el apéndice vermiforme en un saco herniario inguinal es un hallazgo infrecuente (1%), excepcionalmente raro si está inflamado (0.13%). Clínicamente simula una hernia inguinal incarcerada y el diagnóstico preoperatorio adecuado se establece en contadas excepciones. Se reportan dos casos excepcionales de hernias de Amyand y se revisa la bibliografía. Casos clínicos: 1. Paciente masculino de 78 años con una hernia inguinal derecha, incarcerada, en el que el diagnóstico de hernia de Amyand se estableció antes de la cirugía mediante tomografía computada abdominal. Caso clínico 2. Paciente femenina de 82 años de edad, con clínica de hernia crural derecha incarcerada con una hernia de Amyand a través de una hernia inguinal derecha. Conclusiones: la hernia de Amyand es una rara enfermedad cuyo diagnóstico preoperatorio es infrecuente y que siempre debe considerarse en el diagnóstico diferencial en los casos con signos clínicos de hernia inguinal derecha incarcerada.

[Fibromatosis breast in the male. Case study]. / Fibromatosis mamaria en el varón. A propósito de un caso.

BACKGROUND: mammary fibromatosis is a rare pathology. It constitutes 0.2% of breast cancers, and case in men are exceptional. The definitive diagnosis is histological. CLINICAL CASE: we report the case of a male of 52 years, diagnosed with breast fibromatosis after pathologic study of tumor in the right breast. Programmed surgery for excision with wide margins was done. We performed a mastectomy of the subcutaneous fibromatosis with a pathologic study with clear margins. The postoperative course was uncomplicated and did not require adjuvant therapy. At 6 months follow-up he remains free of disease. The treatment of choice is surgical excision with wide margins. Adjuvant treatment is controversial. CONCLUSIONS: the fibromatosis in the breast is very rare and an exceptional occurrence in men. Surgery is the definitive treatment; few results exist for adjuvant therapy.

Antecedentes: la fibromatosis mamaria es una enfermedad rara; sus casos son 0.2% de las neoplasias de mama, y en los varones es aún más rara. El diagnóstico definitivo es anatomopatológico. Caso clínico: se comunica el caso de un varón de 52 años, con diagnóstico anatomopatológico de fibromatosis mamaria posterior al estudio de un tumor en la mama derecha. Se le practicó exéresis con amplios márgenes, luego mastectomía subcutánea, con estudio histológico de fibromatosis con márgenes libres. El postoperatorio transcurrió sin complicaciones y no requirió tratamiento coadyuvante. En el seguimiento a seis meses continuaba libre de enfermedad. El tratamiento de elección es la escisión con amplios márgenes y el oncológico coadyuvante es motivo de controversia. Conclusiones: la fibromatosis en la mama es poco frecuente y su aparición en el varón excepcional. El tratamiento quirúrgico es el definitivo, no así la terapia oncológica neoadyuvante que sigue suscitando controversia.

Proximal-type epithelioid sarcoma in pubis. Case report and review of the literature.

BACKGROUND: The "proximal-type" epithelioid sarcoma (PES) is a rare variant of conventional epithelioid sarcoma. It has been described in older patients in the proximal portion of the extremities with a predilection for the pelvis and perineum. It is clinically more aggressive, showing a higher incidence of recurrence, metastasis, resistance to chemotherapy and a higher mortality. We report the case of a patient with a PES of the pubic region and we review the previous literature. CLINICAL CASE: We report the case of a 57-year-old female with a painless, progressively growing mass in the region of the pubis. We performed surgical resection of the lesion with clear margins and histological and immunohistochemical study allowed the definitive diagnosis of PES. After 4 disease-free years, the patient had a tumor recurrence at the same location. We performed en bloc resection of the lesion and immunohistochemical study confirmed the recurrence of PES. The patient refused adjuvant therapy. Today, after 4 years of follow-up, the patient remains asymptomatic and without evidence of recurrence or distant disease. CONCLUSIONS: Diagnosis of PES is complex because histological findings may be confused with multiple tumors; therefore, immunohistochemical study is definitive. PES shows positivity for epithelial markers (cytokeratin and EMA), mesenchymal markers (vimentin) as well as CD34. According to what has been reported in the literature, surgical treatment with free margins is indicated, with adjuvant therapies when the risk of recurrence is high.