[Negative pressure therapy as complementary treatment in tropical diabetic hand syndrome].

Background: Diabetic hand syndrome is a complication of diabetes mellitus that is rarely described in Mexico. It covers a wide spectrum of nervous, tendinous and infectious disorders. The tropical variant of the disease is described as a necrotizing infection in the upper extremity, generally secondary to superficial trauma.

[Infarction and splenic abscess as the cause of acute abdomen in a patient with myelomonocytic leukemia].

Background: Splenic infarction is a rare cause of acute abdomen. The two main causes are thromboembolic diseases and infiltrative hematological disorders. The splenic abscess is the result of a hematogenous seeding, whose causes are trauma, splenic artery embolization, endocarditis, and immunocompromised states.

[Splenectomy as definitive surgical treatment for hemophagocytic lymphohistiocytosis].

Background: Hemophagocytic syndrome or hemophagocytic lymphohistiocytosis (HL) is an immune hyperactivation of multifactorial etiology, characterized by excessive activation of lymphocytes and macrophages, as well as numerous pro-inflammatory cytokines. It has a non-specific and highly variable clinical presentation, with splenomegaly being one of the clinical manifestations. Due to its nature, it can manifest during childhood or adult life, which is why it is a disease of diagnostic and therapeutic complexity.

Characterization of a New Immunosuppressive and Antimicrobial Peptide, DRS-DA2, Isolated from the Mexican Frog, .

Inflammatory and antimicrobial diseases constitute a major burden for society, and fighting them is a WHO strategic priority. Most of the treatments available to fight inflammatory diseases are anti-inflammatory drugs, such as corticosteroids or immunomodulators that lack cellular specificity and lead to numerous side effects. In addition to suppressing undesired inflammation and reducing disease progression, these drugs lessen the immune system protective functions.

Intraoperative complexity and risk factors associated with conversion to open surgery during laparoscopic cholecystectomy in eight hospitals in Mexico City.

Background: The conversion to open surgery (COS) during the Laparoscopic Cholecystectomy (LC) is reported to occur at a rate of 10-15%. Some preoperative risk factors (RF) have been postulated; however, few studies have evaluated these factors and the intraoperative complexity with the COS rate. The aim of the study was to evaluate the preoperative RF and intraoperative complexity using the Parkland grading scale (PGS) with the COS rate in LC.

[Perforated metastatic primary fibromyxoid sarcoma of the transverse colon].

Background: Low grade fibromyxoid sarcoma (LGFMS) is considered a rare soft tissue tumor and has a tendency to arise from deep soft tissue of the trunk and lower extremities, the intraabdominal area is considered a rare location.

Objective: To describe the first case of a LGFMS arising from the transverse colon with liver metastasis.

Clinical Case: We describe a 57-years-old male patient with abdominal pain of sudden onset; at surgery he was found to have an abscessed tumor in the transverse colon that infiltrated to mesentery root.

Establishing consensus on the perioperative management of cholecystectomy in public hospitals: a Delphi study with an expert panel in Mexico.

Background: Several guidelines have put forward recommendations about the perioperative process of cholecystectomy. Despite the recommendations, controversy remains concerning several topics, especially in low- and middle-income countries. The aim of this study was to develop uniform recommendations for perioperative practices in cholecystectomy in Mexico to standardize this process and save public health system resources.

Urgent left lobectomy as a treatment for broken and infected late subcapsular hepatic hematoma following endoscopic retrograde cholangiopancreatography.

We present the unique case of a young female woman with an infected left liver hematoma as a complication of a previous endoscopic retrograde cholangiopancreatography for a choledocolithiasis. Urgent liver resections are rarely indicated and are usually performed in cases of important liver trauma. To our knowledge this is the first case of an urgent liver resection for the rare indication of late hepatic infected hematoma after an ERCP.

Giant hepatobiliary cystadenoma: clinic-pathological findings.

Hepatic mucinous cystic neoplasms represent a challenging pathology due to their very low frequency, insidious presentation and unclear demography due to the limited cases reported to date. Surgical treatment is mandatory when possible to prevent recurrence and malignant transformation. The case presented herein has a peculiarity, mainly an increased level of CA 19-9 which has not been previously reported.

Gallstone ileus presenting as obstructive gangrenous appendicitis.

We present the very unusual case of a 38-year-old woman with acute appendicitis and intestinal obstruction. During surgery, a 2.5 cm gallstone impacted at the base of the cecal appendix was found as the cause of a gangrenous appendicitis and obstruction; a choledochal-duodenal fistula was found during the same surgery with no gallstones remaining in the gallbladder or elsewhere.

Endoscopic retrieval of toothbrushes in a schizophrenic patient.

Foreign bodies are a common problem in the daily endoscopic practice. Nevertheless, long objects as toothbrushes, sometimes pose a special problem when trying to remove them from the stomach, due to the difficulty of passing through the hiatus. Endoscopic retrieval of toothbrushes has seldom be reported.

Leptin receptor gene polymorphisms and morbid obesity in Mexican patients.

Background: Human obesity is due to a complex interaction among environmental, behavioral, developmental and genetic factors, including the interaction of leptin (LEP) and leptin receptor (LEPR). Several mutations and polymorphisms have been described in patients with early onset severe obesity and hyperphagic eating behavior; however, some contradictory findings have also been reported. In the present study we explored the association of six gene polymorphisms in patients with morbid obesity.

[Thyroglossal cyst and papillary carcinoma. Management proposals].

The thyroid descends through the foramen cecum leaving the thyroglossal duct, which disappears between the fifth and the tenth week of pregnancy. The lack of involution of any part of this duct results in thyroglossal cyst formation. Its diagnostic approach is made by cervical ultrasound, computed tomography and magnetic resonance imaging.

[Vaginal evisceration. Report of a case and a literature review].

Background: Vaginal evisceration is a rare event associated to be associated with several factors. In premenopausal women it is often associated with trauma during intercourse, rape, iatrogenic injury and introduction of foreign objects. In postmenopausal women 73% of cases are associated with previous vaginal surgery or hysterectomy.

[Adenocarcinoid neoplasm of the colon. Case report].

Background: adenocarcinoid tumor is a rare malignancy that combines clinical and histological features of epithelial origin (adenocarcinoma) and neuroendocrine (carcinoid), occupies less than 1 % of all colorectal cancer histology, occurring mainly in the appendix and its presence in the colon is rare.

Clinical Case: we present a case of a 41-year-old female with sigmoid colon tumor, who underwent an extended left hemicolectomy and anastomosis; having a good postoperative evolution, with hospital stay of seventh days. The final histopathological study reported was adenocarcinoid colon tumor with free margins of injuries and four positive nodes of adenocarcinoma.

[Determination of the diagnostic accuracy of 99mTc sestamibi scanning in patients with thyroid nodule and a definitive histopathological report].

Background: 99mTc sestamibi scanning and aspiration biopsy can predict the histopathological result of a thyroid nodule fairly accurately.

Objective: To determine the accuracy of 99mTc sestamibi scanning in detecting malignancy in patients with thyroid nodule confirmed by definitive histopathological report after thyroidectomy.

Material And Methods: A total of 69 patients with a solitary thyroid nodule were studied.