[Computed tomographic colonography: applications, advantages and disadvantages]. / Colonografía tomográfica computarizada: aplicaciones, ventajas e inconvenientes.

INTRODUCTION: Complete preoperative study of the colon is required in the management of colorectal cancer, due to the frequent association of primary colonic neoplasms with colonic adenomas (28%) and/or synchronous carcinomas (5%) of the colon. We present a series of patients who underwent computed tomographic colonography, the indications for this procedure, and the results. PATIENTS AND METHODS: We performed a descriptive prospective study. Between May 2003 and August 2004, 50 computed tomographic colonographies were performed in 50 patients with suspected stenosing colorectal cancer and incomplete conventional colonoscopy. RESULTS: Fifty computed tomographic colonographies were performed. The findings were as follows: three were normal (6%), and in the remainder, one was a false positive for a suspected neoplastic pelvic mass (3.125%) and two were false positives (11.7%) for colonic polyps. Fifty percent of the findings (n = 32) were related to peritoneal metastases and colonic neoplasms. There were 12 technical complications [lack of cleaning of the colon (5), lack of distension (2), little air insufflation (5)]. Patient complications included vegetative manifestations in one (vomiting) and rectal bleeding in another. The overall complication rate was 27.4% (23.4% corresponded to technical complications and the remaining 4% were patient-related). There was no mortality related to the procedure. CONCLUSION: Because computed tomographic colonography is safe, effective and well tolerated by the patient, it should be considered as a technical alternative in the study of stenosing neoplasms of the proximal colon with incomplete colonoscopy. In addition, it allows other associated findings, both intra- and extracolonic, to be obtained and improves the diagnostic and therapeutic management of the patient.

Intestinal invagination in adults: preoperative diagnosis and management.

BACKGROUND AND AIMS: Intestinal invagination in adults is an uncommon but potentially serious condition that is usually diagnosed during surgery by the presence of a mechanical obstructive syndrome. We report a series of adults with intestinal invagination and discuss preoperative diagnosis and surgical procedures. PATIENTS AND METHODS: We analyzed the files of all the seven patients aged over 18 years with a postoperative diagnosis of intestinal invagination and treated at our center between 1996 and 2000. RESULTS: Preoperative causal diagnosis was established in six cases by ultrasonography and computed tomography. All the patients received surgery, three as emergency and four programmed. The lesions causing the invagination were: three benign (Meckel's diverticulum, inflammatory pseudotumor, fibroid polyp) and one malignant (degenerative villous adenoma polyp) located in the terminal ileum, two malignant lesions in the cecum (both adenocarcinomas over a polyp), and in the remaining case a double lymphoma of the jejunum and ileum. The intussusceptions were ileoileal in three cases and ileocolic in four. We performed intestinal resection in six cases and one excision of Meckel's diverticulum. CONCLUSION: Preoperative diagnosis of intussusception was possible in most cases. Sonography and computed tomography proved the most effective and useful preoperative diagnostic methods. In adults colonic invagination is almost always malignant while small bowel is almost always benign. Invagination in adults must be clarified by surgery, and intestinal resection is the procedure of choice.

Treatment of long-standing extensive perianal hidradenitis suppurativa using double rotation plasty, V-Y plasty and free grafts.

BACKGROUND: Perianal hidradenitis suppurativa is a chronic recurrent inflammatory, suppurating, and fistulizing disease of apocrine glands, adjacent anal canal skin, and soft tissues. The standard treatment used for extensive cases is a staged surgical procedure allowing the wound to heal by secondary intention or the delayed use of skin grafts. CASE PRESENTATION: A long-standing case, disabling for the patient, with extensive involvement of the buttock region, treated in one stage, which for reconstruction required the use of sliding plasties and free skin grafts, is reported. RESULTS: The outcome was satisfactory. Primary closure after wide excision using plastic-surgery techniques may help us resolve complex situations and obtain good results and a rapid recovery. CONCLUSION: The method of closure with a combination of skin flaps and skin graft in one stage can be considered a valid surgical option for a group of patients with extensive perianal hidradenitis.

[Omental torsion: imaging techniques can prevent unnecessary surgical interventions]. / Torsión de epiplón: las técnicas de imagen pueden evitar intervenciones innecesarias.

INTRODUCTION: Segmentary infarction of the greater omentum produces a clinical profile of acute abdomen. To date, the cause has been discovered during surgery. Greater use of ultrasonography and computed tomography (CT) in the emergency department could lead to preoperative diagnosis. The aim of this study was to describe the advisability of avoiding surgery in selected patients. PATIENTS AND METHOD: A series of nine adult patients (six men and three women), aged between 18 and 50 years, with a final diagnosis of primary omental torsion were reviewed. The first three patients underwent surgery: two underwent laparotomy for suspected acute appendicitis and the third underwent laparoscopy with a diagnosis of non-specific acute abdomen. The six remaining patients, who received a diagnosis of primary omental torsion or infarction based on ultrasonography and CT, underwent conservative treatment. The patients who did not undergo surgery were subsequently evaluated with imaging techniques to confirm resolution. RESULTS: In the first three patients, symptoms were resolved by resection of the affected omental section. In the six remaining patients, a 3-6 cm mass of soft tissue in the paraumbilical region, between the rectal sheath and the transverse colon, was found. The lesions were hyperechoic or of mixed attenuation. These findings, together with the absence of other radiological and clinical signs, led to the preoperative diagnosis. Treatment was conservative and a fast recovery, observed both clinically and radiologically, was made. CONCLUSIONS: Surgery should be avoided in selected cases of acute abdomen diagnosed as primary omental torsion.