1/1652. Separate sac of peritoneum: a case of an unusual cause of intestinal obstruction.Internal hernia is a rare condition. These hernias are classified in different categories, depending on the location of its orifice. It should be considered in cases of acute intestinal obstruction, particularly in the absence of an external hernia or in the absence of history of previous abdominal surgery. The authors report a unique case of obstruction of the small bowel, that was almost entirely wrapped in a separate peritoneal sac.- - - - - - - - - - ranking = 1keywords = obstruction (Clic here for more details about this article) |
2/1652. leukostasis followed by hemorrhage complicating the initiation of chemotherapy in patients with acute myeloid leukemia and hyperleukocytosis: a clinicopathologic report of four cases.BACKGROUND: Pulmonary and cerebral leukostasis, or parenchymal hemorrhage in these organs, are well-known early complications developing in patients with acute myeloid leukemia (AML), particularly when myelomonocytic features, hyperleukocytosis, and/or a coagulation disorder are initially present. Commonly, these complications arise during increasing leukocyte counts (WBCs). methods: The authors describe four patients with AML and hyperleukocytosis who developed leukostasis followed by parenchymal hemorrhage. RESULTS: Bleeding in all patients occurred while their WBCs were decreasing following cytosine-arabinoside chemotherapy, and in the absence of disseminated intravascular coagulation or severe thrombocytopenia. Radiologic and histopathologic findings underscoring possible mechanisms are presented in the article. CONCLUSIONS: Alterations of cell adhesion associated with chemotherapy-induced blast lysis or cellular differentiation are possible factors contributing to this particular sequence (cytosine arabinoside-based chemotherapy, leukostasis, and subsequent hemorrhage). Prophylactic measures for managing this early complication of AML treatment include leukapheresis to reduce the WBC prior to the initiation of chemotherapy.- - - - - - - - - - ranking = 0.1367340096501keywords = stasis (Clic here for more details about this article) |
3/1652. Acute sensorimotor polyneuropathy with tonic pupils and an abduction deficit: an unusual presentation of polyarteritis nodosa.A tonic pupil may occur in isolation or as part of a systemic disorder. We report a patient who developed tonic pupils and an abduction deficit in the setting of polyarteritis nodosa. The combination of a tonic pupil and an abduction deficit should suggest the possibility of a vasculopathic disorder, because the ciliary ganglion and lateral rectus muscle are both supplied by the lateral muscular artery. Widespread small artery and arteriolar narrowing and occlusion are the hallmarks of polyarteritis nodosa. Unusual ischemic syndromes may occur, such as this rare combination of neuro-ophthalmic signs, by involvement of both the nutrient artery and its collaterals. We are unaware of other reports of neuropathic tonic pupils in association with polyarteritis nodosa.- - - - - - - - - - ranking = 0.071316783053226keywords = duct (Clic here for more details about this article) |
4/1652. Systemic candidiasis with candida vasculitis due to candida kruzei in a patient with acute myeloid leukaemia.candida kruzei-related systemic infections are increasing in frequency, particularly in patients receiving prophylaxis with antifungal triazoles. A Caucasian male with newly diagnosed acute myeloid leukaemia (AML M1) developed severe and persistent fever associated with a micropustular eruption scattered over the trunk and limbs during induction chemotherapy. blood cultures grew candida kruzei, and biopsies of the skin lesions revealed a candida vasculitis. He responded to high doses of liposomal amphotericin b and was discharged well from hospital.- - - - - - - - - - ranking = 0.011886130508871keywords = duct (Clic here for more details about this article) |
5/1652. Acute traumatic proximal tibiofibular joint dislocation confirmed by computed tomography.High-quality AP and lateral radiographs of both knees are essential to confirm the diagnosis. Computed tomography may help resolve diagnostic uncertainty and enable earlier closed reduction to be performed. Moreover, CT scans may be more consistently reproducible than the varied quality of emergency radiographs. In this case, the relative severity of the patient's pain and suggestive radiographs led us to obtain CT scans, which confirmed the diagnosis and enabled early successful closed reduction.- - - - - - - - - - ranking = 0.023772261017742keywords = duct (Clic here for more details about this article) |
6/1652. Clonally unrelated BCR-ABL-negative acute myeloblastic leukemia masquerading as blast crisis after busulphan and interferon therapy for BCR-ABL-positive chronic myeloid leukemia.We report a patient with philadelphia (Ph)-positive, BCR-ABL rearrangement positive, chronic myeloid leukemia (CML) with a prolonged chronic phase of 24 years who was first prescribed alpha-2 interferon 22 years after initial diagnosis. This therapy was tolerated poorly on account of thrombocytopenia, but an eventual major cytogenetic response was followed soon afterwards by transformation to terminal acute myeloid leukemia (AML). Cytogenetic studies indicated that the transformed myeloblasts were karyotypically normal and Ph negative. Although polymerase chain reaction (PCR) analysis of total leukemic mRNA remained BCR-ABL positive, other molecular studies, including Southern blotting and fluorescent in situ hybridization (FISH) analyses, showed that myeloblasts were BCR-ABL rearrangement negative. PCR-based clonality studies using an X-chromosome-linked restriction fragment polymorphism within the phosphoglycerate kinase gene (PGK1) further showed that the Ph-negative blast cells had a different clonal origin from the Ph-positive clone of chronic phase. We suggest that cases of underlying Ph-negative leukemic transformation in Ph-positive CML warrant further study and should be considered for trial of intensive remission induction therapy as appropriate for acute leukemia.- - - - - - - - - - ranking = 0.011886130508871keywords = duct (Clic here for more details about this article) |
7/1652. superior mesenteric artery syndrome simulating acute pancreatitis: a case report.A case of infrapapillary duodenal obstruction secondary to the superior mesenteric artery syndrome is reported. The clinical picture and laboratory data simulated acute pancreatitis but no evidence of pancreatic disease was noted at surgical exploration. A review of the causative factors and treatment of the superior mesenteric artery syndrome is presented along with the differential diagnosis of infrapapillary duodenal obstruction.- - - - - - - - - - ranking = 0.33333333333333keywords = obstruction (Clic here for more details about this article) |
8/1652. Acute respiratory alkalosis associated with low minute ventilation in a patient with severe hypothyroidism.PURPOSE: patients with severe hypothyroidism present unique challenges to anesthesiologists and demonstrate much increased perioperative risks. overall, they display increased sensitivity to anesthetics, higher incidence of perioperative cardiovascular morbidity, increased risks for postoperative ventilatory failure and other physiological derangements. The previously described physiological basis for the increased incidence of postoperative ventilatory failure in hypothyroid patients includes decreased central and peripheral ventilatory responses to hypercarbia and hypoxia, muscle weakness, depressed central respiratory drive, and resultant alveolar hypoventilation. These ventilatory failures are associated most frequently with severe hypoxia and carbon dioxide (CO2) retention. The purpose of this clinical report is to discuss an interesting and unique anesthetic presentation of a patient with severe hypothyroidism. CLINICAL FEATURES: We describe an unique presentation of ventilatory failure in a 58 yr old man with severe hypothyroidism. He had exceedingly low perioperative respiratory rate (3-4 bpm) and minute ventilation volume, and at the same time developed primary acute respiratory alkalosis and associated hypocarbia (P(ET)CO2 approximately 320-22 mmHg). CONCLUSION: Our patient's ventilatory failure was based on unacceptably low minute ventilation and respiratory rate that was unable to sustain adequate oxygenation. His profoundly lowered basal metabolic rate and decreased CO2 production, resulting probably from severe hypothyroidism, may have resulted in development of acute respiratory alkalosis in spite of concurrently diminished minute ventilation.- - - - - - - - - - ranking = 0.011886130508871keywords = duct (Clic here for more details about this article) |
9/1652. Induction of hyperacute graft-vs-host disease after donor leukocyte infusions.BACKGROUND: Infusions of leukocytes obtained from the original bone marrow donor is a new approach for treating patients who have a relapse of leukemia after allogeneic bone marrow transplantation. Up to 90% of patients who achieved remission developed graft-vs-host disease (GVHD). However, any description of the clinical and histologic features in these cases is lacking. OBSERVATIONS: We describe 2 patients in whom a severe, peculiar, hyperacute, fatal GVHD developed after treatment with donor leukocyte infusions and interferon alfa. The patients had not received any additional chemotherapy or GVHD prophylaxis. In both patients, the eruption started with the appearance of erythematous plaques at the interferon alfa injection sites, and a generalized maculopapular eruption subsequently developed. The clinical lesions evolved from acute to lichenoid within several days. The histologic examination also demonstrated unusual findings and showed features of both acute and chronic lichenoid GVHD. CONCLUSIONS: Donor leukocyte infusions without GVHD prophylaxis may provoke a severe fatal hyperacute GVHD. In the cases presented herein, we discuss the significance of the rapid clinical evolution from acute to lichenoid and the combination of histologic features of both acute and chronic GVHD in the biopsy specimens.- - - - - - - - - - ranking = 0.047544522035484keywords = duct (Clic here for more details about this article) |
10/1652. Post-transplant acute myeloid leukemia (PT-AML).Acute myeloid leukemia following organ transplantation (PT-AML) is a rare event with only a few published cases in the literature. We present three patients who developed AML (FAB M1, M5, M4) after renal, double lung or liver transplantation. Molecular analysis detected a t(9;11) in one patient and documented the recipient origin of AML in a second patient. All patients were treated with chemotherapy. immunosuppression was reduced to cyclosporin A (CsA) and prednisone in two patients and to prednisone alone in one patient. Two patients achieved a complete remission (CR), with a remission duration of 4.6 months in one patient, the other patient died from septicemia after 15.2 months in CR. One patient was refractory to chemotherapy and died from septicemia. This report together with the documented cases in the literature suggests that PT-AML (1) develops after a median interval of 5 years after transplantation with variable latency (range, <1-17 years); (2) is heterogeneous with respect to FAB classification; (3) shows chromosomal and molecular changes typical of therapy-related AML (t-AML: -7, 8, 11q23, inv16, t(15;17)); (4) standard chemotherapy is feasible after reduction of immunosuppression and produces a CR rate of 56% with a median remission duration of 4.6 months and an overall survival of 2.6 months; (5) the major complications are early death (25%), gram-negative septicemia, progressive disease or relapse. This review provides diagnostic and therapeutic experiences and guidelines for the management of this increasing group of post-transplant patients.- - - - - - - - - - ranking = 0.011886130508871keywords = duct (Clic here for more details about this article) |
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