CARLOS WALTER SOBRADO JUNIOR
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
- A Sessile Serrated Lesion Overlying a Submucosal Colonic Lipoma: An Endoscopic Rarity Identified Using Artificial Intelligence(2023) FACANALI, Carolina Bortolozzo Graciolli; FACANALI JUNIOR, Marcio Roberto; SOBRADO JUNIOR, Carlos Walter; SAFATLE-RIBEIRO, Adriana VazObjective: Rare coexistence of disease or pathologyBackground: Lipomas are benign, slow-growing mesenchymal neoplasms, more prevalent in females, with a peak incidence in the fifth to sixth decades of life. Generally, due to their low clinical relevance, they receive little attention in the literature. Uncommon in the colon, lipomas are most often identified as an incidentaloma in asymptomatic patients during colonoscopy, and overlapping with epithelial lesions is a rare finding. Serrated polyps used to be considered as hyperplastic polyps without any malignant potential; however, currently, the serrated pathway accounts for one-third of all colorectal cancers. Here, we describe a rare case of a sessile serrated lesion on a submucosal lipoma identified with the aid of artificial intelligence.Case Report: A 60-year-old woman underwent screening colonoscopy for colorectal cancer after a positive fecal immunochemical test. A high-definition colonoscopy with the aid of artificial intelligence (Fujifilm CAD EYE) was performed. A flat lesion at the right colon was diagnosed with white-light endoscopy simultaneously identified by artificial intelligence, which classified the lesion as hyperplastic. Resection was performed through mucosectomy, and a sign of naked fat was observed at the base of the resected lesion. Histopathology of the specimen characterized a submucosal lipoma associated with a sessile serrated lesion.Conclusions: We describe a rare case of sessile serrated lesion on a colon lipoma, identified with the aid of artificial intelligence. We carried out a brief literature review and discussed the main findings and aspects related to the literature.
- Neurotuberculosis in a Patient with Ulcerative Colitis Using Long-Term Adalimumab: A Rare Case(2023) FACANALI, Carolina Bortolozzo Graciolli; FACANALI JUNIOR, Marcio Roberto; RIBEIRO, Adriana Vaz Safatle; SOBRADO JUNIOR, Carlos WalterObjective: Rare disease Background: Tuberculosis (TB), a global public health problem, is a disease with a high incidence and prevalence worldwide. The risk of developing TB increases after starting anti-tumor necrosis factor (TNF) therapy in the management of ulcerative colitis (UC). Isolated neurotuberculosis (NTB) without other manifestations is a rare form of infec-tion in these patients. This article reports a case of a severe UC patient with isolated NTB following long-term therapy with adalimumab and discusses the clinical aspects, diagnosis, management, and prognosis. Case Report: A 34-year-old female patient with severe UC with pancolitis reported continuous and progressive holocranial headaches associated with a daily fever of 38 degrees C and night sweats after 4 years of using adalimumab and af-ter being in deep remission. Annually, she was screened for latent TB with chest X-rays and a Mantoux tuber-culin skin test, and she always had negative results for TB. On cerebral magnetic resonance imaging with post -contrast sequences, small cortical lesions in the left frontal lobe and 2 larger lesions were visualized and were suggestive of tuberculomas. The initial management consisted of the suspension of immunosuppressive ther-apy and treatment with rifampicin, isoniazid, ethambutol, pyrazinamide, and prednisone. The patient showed clinical and neurological improvement and was clinically asymptomatic, with no changes in laboratory tests. Also, she had no neurological sequelae and was taking maintenance therapy with prednisone as indicated by the neurologist. Conclusions: Early recognition of symptoms of neurological involvement of TB, suspension of anti-TNF and adequate treat-ment are fundamental steps to prevent complications.
- Fournier’s Gangrene During Pregnancy in a Patient with Crohn’s Disease(2022) SOBRADO, L. F.; AVERBACH, P.; JAYME, V. R.; CAMARGO, M. G. M. de; SOBRADO, C. W.; NAHAS, S. C.Patient: Female, 29-year-old Final Diagnosis: Crohn’s associated Perianal and perirectal abscess • Fournier’s gangrene Symptoms: Anal pain Medication: — Clinical Procedure: — Specialty: Surgery Objective: Background: Case Report: Conclusions: Unusual clinical course Fournier’s gangrene (FG) is a rapidly progressive necrotizing infection of the perineum. Risk factors include male sex and immunosuppression. Inflammatory bowel disease and pregnancy may alter immune response by complex mechanisms but have rarely been associated with necrotizing infections of the perineum. To the best of our knowledge, only 5 cases of FG in association with IBD have been reported in the literature, and none of them occurred during pregnancy. We report the case of a young woman with long-standing Crohn’s disease in clinical remission with Infliximab monotherapy who developed FG in the third trimester of pregnancy. A cesarean section was undertaken at 35 weeks due to fetal distress, followed by debridement, diverting stoma, and vacuum-assisted therapy. The perineal defect was closed following 4 debridements and vacuum-therapy exchanges with a unilateral medial thigh advancement flap, and a draining seton was placed in the suprasphincteric fistula. The patient was dis-charged after 28 days and her recovery was unremarkable. The neonate also recovered well. The treatment of FG is multidisciplinary and includes early debridement and intestinal diversion. Perianal pain should not be disregarded, as it may be the initial symptom of severe perianal sepsis in the immunosuppressed. To the best of our knowledge, this is the first case report of FG during pregnancy in a patient with Crohn’s disease. © Am J Case Rep, 2022.
- Gastric and Duodenal Fistulas in Crohn's Disease, a Surgical Challenge: Report of 5 Cases and a Review of the Literature(2023) SOBRADO JUNIOR, Carlos Walter; VILLELA JUNIOR, Helder de Moura; FACANALI, Carolina Bortolozzo Graciolli; SOBRADO, Lucas Faraco; CAMARGO, Mariane Gouvea Monteiro de; NAHAS, Sergio CarlosObjective: Rare diseaseBackground: Fistulas involving the stomach and duodenum in Crohn's disease are rare (occurring in less than 1% of patients). Here, we reviewed registers from 855 patients with Crohn's disease treated in our service from January 2007 to December 2020 and found 4 cases of duodenal fistula and 1 case of gastric fistula.Case Reports: The fistula origin was in the ileocolic segment in all cases, and all of the patients underwent preoperative optimization with improvement of nutritional status and infection control. They then underwent surgical treatment with resection of the affected segment and duodenal or gastric closure with covering by an omental patch. One case of a duodenal fistula was complicated by duodenal dehiscence. This was treated surgically with duodenojejunostomy. Each of the other patients had an uneventful postoperative course. All patients were successfully cured of their gastroduodenal fistulas, and at the time of this publication, none of them died or had fistula recurrence.Conclusions: Fistulas with the involvement of the stomach and duodenum in patients with Crohn's disease are almost always due to inflammation in the ileum, colon, or previous ileocolic anastomosis. Management of this situation is complex and often requires clinical and surgical assistance; preoperative optimization of the patient's general condition can improve the surgical results. The surgical approach is based on resection of the affected segment and gastric or duodenal closure with covering by an omental patch. Gastrojejunostomy or duodenojejunostomy can be performed in selected patients with larger defects and minor jejunal disease. To prevent recurrence, prophylactic therapy with anti-TNF agents and early endoscopic surveillance are also essential for successful treatment.
- Spontaneous Knot Formation in a Central Venous Catheter(2021) FACANALI, Carolina Bortolozzo Graciolli; PAIXAO, Vanessa Simoes; SOBRADO, Carlos Walter; FACANALI, Marcio RobertoObjective: Challenging differential diagnosis Background: Central venous catheterization (CVC) is indispensable in the management of critically ill patients in the emergency room and intensive care units, either to avoid the various peripheral punctures and vasoactive drugs administration in decompensated patients, or even to administer parenteral nutrition. CVC is an invasive procedure with possible mechanical, infectious, and thrombotic complications. The complete knotting of a catheter is a rare complication. The aim of this study is to report a case of a simple tight knot 2 cm from the catheter tip. We provide insights for early identification of catheter knotting, as well as its management. Case Report: A 63-year-old man with a previous history of angioplasty and non-pharmacological coronary stent in a marginal branch of the circumflex coronary artery evolved to junctional bradycardia and cardiogenic shock and was transferred to the reference hospital. He had a CVC inserted in the right jugular vein; however, it did not have any blood flow. The hypothesis of catheter knotting was suggested and confirmed through a chest X-ray. Venotomy was performed and it was successfully removed. Conclusions: Knotting in CVC obstruction is a rare complication. Recognition of this complication is essential to avoid major complications, such as catheter fragmentation and venous injury. Radiological follow-up after the procedure in patients with difficult anatomy is essential, and echo-guided catheterization should be encouraged when available. Despite the rarity of a knotted intravascular catheter, it is important to note this possible late complication that must be considered in the absence of catheter blood flow.
- Anorectal Mucosal Melanoma: A Case Report and Literature Review(2021) JUNIOR, Jose Donizeti de Meira; SOBRADO, Lucas Faraco; GUZELA, Vivian M.; NAHAS, Sergio Carlos; SOBRADO, Carlos WalterObjective: Rare disease Background: Anorectal mucosal melanoma (AMM) is a rare and aggressive neoplasm, with a 5-year survival rate of 10%. Due to its rarity and nonspecific symptoms, the diagnosis is often made late. Surgical resection remains the criterion standard for treatment of anorectal melanoma. Case Report: We present the case of an 81-year-old woman presenting with hematochezia, anal secretion, tenesmus, difficulty in defecation, and perianal pain. On physical examination, there was a prolapse of a 5-cm melanocytic nodule in the anal canal, hard on palpation. Biopsy confirmed anorectal melanoma. Staging revealed anal and metastatic disease, with adrenal, lymphatic, and hepatic involvement. As the patient continued to have bleeding, severe pain, and difficulty in defecation, she was submitted to a wide local excision. At 5-month followup, the anal lesion had relapsed, and the patient died 10 months after the procedure. Conclusions: AMM is a rare and extremely aggressive tumor. Symptoms are nonspecific but early diagnosis should be pursued to allow curative treatment. Surgical resection with free margins is the goal of surgical treatment. New therapies are being studied, including immunotherapy, which can improve the dismal prognosis of this rare disease.