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1/10964. Pill-induced gastric injury.

    Pill-induced esophageal injury is a well described clinical entity. In contrast, pill-induced gastric injury has not been well characterized. In this report, we describe two patients with acute gastric ulcers due to pill ingestion and review the available literature on pill-induced gastric injury. The first patient presented with upper gastrointestinal hemorrhage and was found to have a large gastric ulcer with multiple potassium chloride pills in the ulcer crater. The second patient presented with odynophagia and endoscopy revealed doxycycline-induced esophageal and gastric injury. To our knowledge, this is the first case report of doxycycline-induced gastric ulcer.
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2/10964. 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.
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3/10964. 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.
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ranking = 4.25
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4/10964. 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.
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5/10964. The changes in human spinal sympathetic preganglionic neurons after spinal cord injury.

    We have applied conventional histochemical, immunocytochemical and morphometric techniques to study the changes within the human spinal sympathetic preganglionic neurons (SPNs) after spinal cord injury. SPNs are localized within the intermediolateral nucleus (IML) of the lateral horn at the thoraco-lumbar level of the spinal cord and are the major contributors to central cardiovascular control. SPNs in different thoracic segments in the normal spinal cord were similar in soma size. SPNs in the IML were also identified using immunoreactivity to choline acetyltransferase. Soma area of SPNs was 400.7 15 microm2 and 409.9 /-22 microm2 at the upper thoracic (T3) and middle thoracic (T7) segments, respectively. In the spinal cord obtained from a person who survived for 2 weeks following a spinal cord injury at T5, we found a significant decrease in soma area of the SPNs in the segments below the site of injury: soma area of SPNs at T8 was 272.9 /-11 microm2. At T1 the soma area was 418 /-19 microm2. In the spinal cord obtained from a person who survived 23 years after cord injury at T3, the soma area of SPNs above (T1) and below (T7) the site of injury was similar (416.2 /-19 and 425.0 /-20 microm2 respectively). The findings demonstrate that the SPNs in spinal segments caudal to the level of the lesion undergo a significant decrease of their size 2 weeks after spinal cord injury resulting in complete transection of the spinal cord. The impaired cardiovascular control after spinal cord injury may be accounted for, in part, by the described changes of the SPNs. The SPNs in spinal segments caudal to the injury were of normal size in the case studied 23 years after the injury, suggesting that the atrophy observed at 2 weeks is transient. More studies are necessary to establish the precise time course of these morphological changes in the spinal preganglionic neurons.
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6/10964. Painful incarcerated hernia following a rugby union lineout.

    Discussion related to hernias in sport usually involves the diagnosis and treatment of chronic musculotendinous groin disruption. A case of acute trauma in an incarcerated inguinal hernia, occurring in a rugby union player during a lineout, is presented. The injury arose as a result of a change in the laws of the game.
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ranking = 1.25
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7/10964. Acute rheumatic fever with three major criteria: polyarthritis, carditis and chorea. A case report.

    An eight-year-old girl is presented with three major criteria of acute rheumatic fever: polyarthritis, carditis and chorea. The diagnosis was confirmed with a history of pharyngitis 15 days prior to admission and with the findings of positive acute phase reactants such as elevated erythrocyte sedimentation rate (ESR) and c-reactive protein (CRP), elevated anti-streptolysin-O (ASO) titration, and clinical findings of polyarthritis, carditis and chorea. Patient responded well to salicylate and phenobarbital treatment. The rare association of these three major criteria in acute rheumatic fever is emphasized.
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8/10964. central nervous system T-cell lymphoproliferative disorder in a patient with chronic active Epstein-Barr virus infection.

    PURPOSE: central nervous system (CNS)-T cell lymphoproliferative disorder (T-LPD) developing during the course of chronic active Epstein-Barr virus (CAEBV) infection is reported. patients AND methods: CAEBV was diagnosed in a 14-month-old boy with fever, cytopenia, hepatosplenomegaly, and abnormal high titers of anti-Epstein-Barr virus (EBV) antibodies. At 8 years of age, he had a splenectomy because of progressive disease. RESULTS: After 27 months of clinical remission, muscle weakness and paresthesia developed. magnetic resonance imaging of his brain showed spotty T2 prolongation in left parietal, bilateral frontal, and temporal white matter with meningeal enhancement. brain biopsy revealed the cerebral infiltration of CD3 , CD4 , CD8-, CD45RO , CD56-, and EBV-encoded rna 1 cells. CONCLUSIONS: The CNS involvement of EBV-associated T-LPD is a rare but serious complication in CAEBV without known underlying immunodeficiency.
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ranking = 2.25
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9/10964. 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.
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10/10964. Acute leukemia with the phenotype of a natural killer/T cell bipotential precursor.

    An acute leukemia with an unusual immunophenotype developed in a 17-year-old girl. At the initial presentation, extramedullary involvement was not evident, but with advancing disease, massive splenomegaly and an osteolytic rib tumor developed. The disease was aggressive and refractory to intensive chemotherapeutic regimens for myeloid and lymphoid malignancies, and the patient died 3 months after the initial presentation. The leukemic cells were of irregular shape and variable size; they had deeply indented or bi-lobed nuclei and relatively fine, azurophilic granules in their cytoplasm. They were positive for acid phosphatase and beta-glucuronidase in granular staining, but they were negative for myeloperoxidase. The leukemic cells had a unique immunophenotype: it was positive for T-cell antigens (CD1a, CD2, cytoplasmic CD3, CD4), myeloid antigens (CD13 and CD33), NK-cell antigen (CD56), CD19 and CD30. dna analysis revealed no gene rearrangement in the T-cell receptor beta, gamma and delta, or immunoglobulin heavy chain genes. The leukemic cells of our patient are thought to have arisen from the transformation of a putative precursor cell common to both the T- and NK-cell lineage in the bone marrow. The current literature on precursor NK-cell malignancy is reviewed, and its clinicopathological feature is discussed.
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ranking = 3.75
keywords = b
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