[Salivary gland tumors in Veracruz. Experience of two institutions].

Background: The aim of this paper was to know the epidemiological characteristics of the salivary gland tumors in a Mexican population.

Methods: A descriptive, retrospective and cross-sectional study was performed. All cases of salivary gland tumor were collected in a period of 5 years (2009-2014) in two hospitals of our State, the Hospital General de Veracruz and the Unidad Médica de Alta Especialidad y Hospital de Especialidades No.

[Mullerian adenosarcoma of the cervix: case report with conservative management].

Background: Mullerian adenosarcoma is a rare gynecological malignancy with a low malignant potential, with biphasic growth, consisting of a benign epithelial element and a malignant mesenchymal element. It occurs in all ages predominating in postmenopausal women. Cervical localization of Mullerian adenosarcomas is rare; however, it is associated with a presentation in young women.

[Bile duct lesions repaired with peritoneal tube grafts].

Background: A significant number of people suffer iatrogenic bile duct injury during laparoscopic cholescystectomy. Biliary-digestive bypass may be complicated by stenosis and biliary sepsis, affecting both quality of life and life expectancy. To avoid bypass synthetic grafts have been used, which are expensive.

[Left lobe mesenchymal hamartoma of liver. Uncommon location].

Background: Mesenchymal hamartoma of the liver is a rare benign liver tumor in children, usually arising from the right liver lobe and represents about 5 to 6% of all primary hepatic tumors. Complete surgical resection of the tumor is curative.

Clinical Case: A 30 months old male presented with epigastrium abdominal pain and a palpable mass over a period of two days with no other symptom.

[Ectopic sebaceous glands in the esophagus. Report of three cases].

Sebaceous glands typically are located in the pilosebaceous unit located in the superficial layers of the skin. Thus, ectopic sebaceous glands in the esophagus are a very unusual condition. Since 1962 when De la Pava and Pickren described that sebaceous glands could be ectopically located in the esophagus, no more than 30 cases have been reported in the literature.

[Inflammatory myofibroblastic tumour of the tonsil: case report and literature review].

Inflammatory myofibroblastic tumour (inflammatory pseudotumor) is an idiopathic lesion, rare in the head and neck, of unknown aetiology. It is primarily a soft tissue, lung and orbital condition. In the world literature, only two cases with tonsillar disease have been found.

[Gastrointestinal stromal tumors in the pediatric population. Report of two cases and a review of the literature].

Background: Gastrointestinal stromal tumors (GISTs) are uncommon mesenchymal tumors of the gastrointestinal (GI) tract that occur predominantly in adults. GISTs in pediatric patients are rare and not well characterized. We reviewed the presentation, diagnostic work-up, pathological specimens, and outcomes of two children with GIST that originated from the stomach.

Incidence of pathologic complete response in women treated with preoperative chemotherapy for locally advanced breast cancer: correlation of histology, hormone receptor status, Her2/Neu, and gross pathologic findings.

Neoadjuvant chemotherapy is the standard of care for patients with locally advanced breast cancer and is used increasingly for large operable breast cancer. The aim of this study was to assess the rate of pathologic complete response (pCR) in our patient population with locally advanced breast cancer and identify predictive factors for pCR after neoadjuvant chemotherapy. We studied a cohort of 205 patients and compared histologic features and biomarkers in the pretreatment biopsy with the corresponding pathologic response in the subsequent resection specimen.