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At least 217 records · Page 12Linked to original sources

Leukemic dermal infiltrates as a complication of central venous catheter placement.

A leukemic dermal infiltrate at the site of a central venous catheter placement was the first manifestation of relapse in a 58-year-old woman in clinical remission of acute myelomonocytic leukemia. The patient developed a large hematoma around the site of an unsuccessful attempt to place a central venous (CV) catheter. Although the hematoma resolved completely by the time that complete remission was achieved, an indurated, erythematous mass subsequently developed, which when biopsied revealed leukemic cells in the dermis. The patient had a relapse in her peripheral blood shortly thereafter. The authors reviewed recent literature and their own experience with CV catheters and report on localized dermal relapse as a previously unpublished risk of CV catheter placement. They also speculate on the role of the dermis as a sanctuary for leukemic cells and a potential source for relapsing disease.

Antineoplastic Combined Chemotherapy Protocols↗

[Interstitial cancerous lung diseases. Lymphangiosis carcinomatosa and leukemic pulmonary infiltrates].

The radiological findings in pulmonary lymphangitic carcinomatosis and in leukemic pulmonary infiltrates mirror the tumor-dependent monomorphic interstitial pathology of lung parenchyma. It is a proven fact that pulmonary lymphangitic carcinomatosis is caused by hematogenous tumor embolization to the lungs; pathogenesis by contiguous lymphangitic spread is the exception. High-resolution CT performed as a supplement to the radiological work-up improves the sensitivity for pulmonary infiltrates in general and thus makes the differential diagnosis decided easier. Radiological criteria cannot discriminate the different forms of leukemia. Plain chest X-ray allows the diagnosis of pulmonary involvement in leukemia due to tumorous infiltrates and of tumor- or therapy-induced complications. It is essential that the radiological findings be interpreted with reference to the stage of tumor disease and the clinical parameters to make the radiological differential diagnosis of opportunistic infections more reliable.

Humans↗

Sweet's syndrome in acute myelogenous leukemia showing dermal infiltration of leukemic cells.

We encountered a 76-year-old woman with acute myelogenous leukemia (AML) who developed Sweet's syndrome. A biopsy specimen taken from her skin lesion on the upper arm showed an infiltration of numerous neutrophils intermingled with leukemic cells. As far as we know, this is the first report of Sweet's syndrome showing a phenotypically identified leukemic cell infiltration of AML determined as M2 in the French-American-British classification.

Aged↗

Corneal donor material selection.

Histologic study of eyes used as donor material for corneal transplant revealed one instance of massive leukemic infiltration with leukemic keratic precipitates on the fellow eye. In another eye, microabscesses composed of acute and chronic inflammatory cells containing Crytococcus neoformans were present. In a third patient metastatic anaplastic cells were present in the choroid. We think donor eyes are absolutely unacceptable if death was caused by any chronic neurologic disorder, unless clearly secondary to trauma. Eyes from patients with septecimia, hepatitis, jaundice and any evidence of any active viral infection, syphilis, and positive serology are also unacceptable. Extreme caution should be used in selecting eyes of patients with ocular or systemic malignancy, long-term diseases, particularly if immunosuppressive agents were used, where a history of eye disease exists, including corneal disease or dystrophy, iritis, absolute glaucoma or acute glaucoma, and eyes with a history of previous intraocular surgery.

Bacterial Infections↗

Cutaneous findings in hairy cell leukemia.

Hairy cell leukemia is a distinctive clinicopathologic entity that is histologically characterized by infiltration of the spleen, bone marrow, and blood by uniform mononuclear cells--"hairy cells." We reviewed the prevalent cutaneous findings, specific and nonspecific, in 113 cases of hairy cell leukemia. Only one patient had specific lesions (skin infiltration by leukemic cells). Nonspecific cutaneous findings included recurrent infections, ecchymoses, petechiae, pallor, drug reactions and reactions to transfusions, and nonherpetic ulcerations. Although leukemic infiltration of the skin in hairy cell leukemia is rare, cutaneous histopathologic features may be diagnostic, particularly when cytomorphologic examination is coupled with staining of a fresh specimen with tartrate-resistant acid phosphatase. Cutaneous and extracutaneous infections, often extensive and with opportunistic organisms, were the most common nonspecific findings and demonstrated severely deficient immunologic responsiveness. Associated malignant diseases, cutaneous and extracutaneous, were few in number and are of uncertain significance.

Aged↗

Endobronchial granulocytic sarcoma causing acute respiratory failure in acute myelogenous leukemia.

Infiltration by leukemic cells may occur in many organs. When localized masses caused by myeloid leukemic infiltration occur, they are called granulocytic sarcomas. Such tumors may be mistaken for primary carcinomas. In this report, we describe a 63-yr-old man with acute myelogenous leukemia who developed progressive atelectasis of the left lower lobe of the lung. Bronchoscopy revealed a fungating endobronchial tumor completely obstructing the left lower lobe bronchus and partially occluding the left upper lobe bronchus. Biopsies from this lesion showed an endobronchial granulocytic sarcoma. Despite chemotherapy, the patient developed progressive hypoxemia and died.

Bronchial Neoplasms↗

Leukemia cutis resembling a flare-up of psoriasis.

Leukemia cutis represents a skin infiltration by leukemic cells. Clinically it can mimic a wide variety of dermatoses. We describe the case of a 64-year-old man with psoriasis who presented with a 4-day history of erythematous, slightly scaly, asymptomatic plaques distributed on the trunk and upper-extremities, and associated asthenia, myalgias, and anorexia. A skin biopsy revealed a leukemic infiltrate. Studies of peripheral blood and bone marrow provided a diagnosis of acute monocytic leukemia. This case report shows the importance of the clinical suspicion for the diagnosis of leukemia.

Bone Marrow↗

[Clinicopathological studies of the gastrointestinal tract in adult T-cell leukemia patients].

We analysed the digestive symptoms and the gastrointestinal (GI) tract lesions in 61 patients with adult T cell leukemia (ATL). Digestive symptoms were found in 36 patients (59.0%) at the onset of leukemia, and in 45 patients (73.8%) at the first medical examination. X-ray examination of the GI tract was made in 22 patients, and abnormal stomach mucosa patterns were found in 20 patients (90.9%). Endoscopic examination of the GI tract was carried out in 18 patients, and it revealed that most of the stomach mucosa was accompanied by edema and redness. Erosions and ulcers also were found in many patients. A granular shadow, which was noted during the x-ray examination, could not be confirmed by endoscopy. A pathological examination of biopsied specimens was made in 13 patients, and infiltration of leukemic cells into the stomach was observed in 10 of the 13 cases. These findings suggest that leukemic infiltration into digestive tracts is related to the development of digestive symptoms in ATL patients.

Adult↗

Leukemia cutis in acute monocytic leukemia.

We describe the case of a patient with acute monocytic leukemia who demonstrated striking leukemic infiltration of the abdomen. This cutaneous involvement occurred in association with systemic relapse. Histologic examination of a biopsy specimen of a cutaneous lesion showed a diffuse infiltrate of leukemic cells in the dermis. However, blood vessels and skin adnexa were well-preserved, despite the destructive nature of monocytic leukemia.

Adult↗

Pathoanatomical features of the kidney in myelomonocytic and chronic lymphocytic leukemia.

The kidneys of 18 autopsy cases of myelomonocytic leukemia (MML) were examined for MML-specific features. Nine cases of chronic lymphocytic leukemia (CLL) served as controls. The kidneys of the cases of MML showed macroscopically detectable signs of hemorrhagic diathesis and secondary uric acid diathesis more often than those of CLL. In the MML group most of the kidneys weighed more than the normal average for the corresponding age group, but the average renal weights for the 2 groups were about the same. Renal weight and grade of leukemic infiltration, particularly in MML, revealed no significant positive correlation. In most of the cases of MML there were unevenly distributed poorly defined leukemic, infiltrates in the renal cortex and medulla. The histology resembled that of pyelonephritis. In CLL, on the other hand, the leukemic infiltrates were usually sharply defined and localized in foci in the outer cortex and the corticomedullary border region. Renal dysfunction in cases of MML has been attributed by others to hyperlysozymemia. It was found occasionally but there was no MML-typical morphological substrate in our material. Hyaline droplet change of the tubular epithelium was more frequent and more pronounced in MML than in CLL. However, we also determined that it was nonspecific and that it was not a parameter of cell damage. Tubular hyaline droplet change and the morphological criteria of acute renal failure were not positively correlated with the degree of leukemic infiltration of the kidneys or with the leukemic proliferation as a whole. Instead, they were considered to be signs and symptoms of accompanying or secondary diseases which complicated the leukemia.

Acute Kidney Injury↗

A case of leukemic pleural infiltration in atypical chronic myeloid leukemia.

Pleural effusion in chronic myeloid leukemia (CML) is poorly understood and rarely reported in the literature. When the pleural effusion is caused by leukemic pleural infiltration, the differential white blood cell count of the effusion is identical to that of the peripheral blood, and the fluid cytology reveals leukemic blasts. We report here a case of bilateral pleural involvement of atypical CML in an 83-yr old male diagnosed with pancreatic cancer with abdominal wall metastasis and incidental peripheral leukocytosis. Based on bone marrow examination, chromosome analysis and polymerase chain reaction he was diagnosed with Philadelphia chromosome negative, BCR/ABL gene rearrangement negative CML. Following 3 months of treatment with gemcitabine for pancreatic cancer, he developed bilateral pleural effusions. All stages of granulocytes and a few blasts were present in both the pleural fluid and a peripheral blood smear. After treatment with hydroxyurea and pleurodesis, the pleural effusion resolved.

Aged↗

[Brain changes in leukemias. Histopathological aspects of choroid plexus involvement].

In the study of 38 cases of leukemia, neoplastic infiltration of the brain was the most frequent lesion, occuring in 70,5%, compared to 48,5% for hemorrhage. The leptomeninges were the most frequent site of leukemic infiltration followed by the choroid plexus (57,8%) and the nervous tissue (50%). In few cases leukemic infiltration of choroid plexus was seen in the absence of meningeal involvement. Very often the leukemic infiltration of the CNS courses without clinical manifestations. The paper points out the importance of the cytologic study of the cerebro-spinal fluid as a routine procedure in cases of leukemia, since it is well known that the therapeutic agents have difficulty in penetrating the blood-brain barrier and that foci of CNS leukemic infiltration may represent points of reactivation points of reactivation of the disease even during the therapeutic remission.

Blood-Brain Barrier↗

A multilobular variant of hairy cell leukemia with morphologic similarities to T-cell lymphoma.

Hairy cell leukemia is a distinct chronic lymphoproliferative disorder composed of morphologically unique B-lymphocytes. The diagnosis of hairy cell leukemia is usually based on the morphology of blood/bone marrow aspirate smears and bone marrow sections. We report three cases of hairy cell leukemia that had an unusual multilobated nuclear appearance seen on both smears and tissue sections. Many of the hairy cells exhibited marked nuclear lobulations and convolutions, giving rise to clover leaf-like nuclear configurations. The nuclear chromatin was finely reticular and characteristic of hairy cell leukemia. Bone marrow sections were hypercellular and the leukemic infiltrate was loosely distributed. A leukemic infiltrate was also seen in splenic sections in two cases in which splenectomy was carried out. Tartrate-resistant acid phosphatase cytochemistry was positive in all three cases. Flow cytometric analysis and paraffin section immunoperoxidase studies confirmed the B-cell lineage of the leukemic cells in all cases. The multilobulated nuclei described in these three cases are quite unusual in hairy cell leukemia; they could potentially lead to an erroneous diagnosis of T-cell lymphoma or leukemia. Features typical of hairy cell leukemia, such as the nuclear chromatin distribution and pattern of bone marrow infiltration, together with the clinical history, are helpful in establishing a correct diagnosis of these variant cases of hairy cell leukemia.

Adult↗

[Testicular biopsies in childhood ALL (author's transl)].

Bilateral wedge biopsies were practiced in 22 boys, aged 4 to 13 years, with Acute Lymphoblastic Leukemia after 36 months in continuous remission. All the patients had been given the same chemotherapy (protocol D.74). The aim of this study was to detect the presence of residual leukemic infiltrates before suppressing therapy and to evaluate gonadal toxicity due to chemotherapy. Leukemic infiltration was found in six cases (27%) and another two were considered as doubtful cases. Interstitial space and subepithelial areas were the preferred sites of infiltration; tunica albuginea was found affected in only two cases. All patients affected were given local radiotherapy and additional chemotherapy. Interstitial oedema with fibroblasts and macrophages was the most common lesion (81%); fibrosis was observed in 20% of the cases. Changes in testicular morphology were mainly reflected by narrowing of the tubular diameter (less than 75% of average values in 63% of the cases) and decrease of the number of spermatogenic cells per 100 tubules (less than 75% of mean values in 86% of the biopsies). These changes appeared as independent of the presence of leukemic infiltrates. Conclusions. Biopsies performed in boys before suppression of therapy are considered as important; in positive cases additional local and systemic therapy must be given. Further longitudinal and functional studies are needed to verify consequences of toxic effects observed.

Adolescent↗

Histopathology on testicular involvement of leukemia with an emphasis on lymphatics.

The human testes in cases of malignant hematopoietic tumors, especially of leukemia, were histologically examined to characterize the mode of leukemic infiltration in comparison with that of malignant lymphoma. Materials were obtained from 56 autopsy cases, composed of 47 of leukemia, 7 of reticulum cell sarcoma and 2 of lymphosarcoma. Leukemic infiltration was confirmed in 43 (19%) of all leukemic cases and the pattern was divided into three types; diffuse, patchy and perivascular. A high grade infiltration was most common in lymphocytic leukemia. The testicular involvement was unexceptionally bilateral with occasional differences in the grade of infiltration, slight to moderate. There was no regional difference in incidence of leukemic infiltration in the testicular interstitium. A thin-walled canal located closely between the proper lamina of seminiferous tubules and the interstitial cell cluster was suggested to be lymphatics, which were extremely irregular in shape and occasionally did not have endothelium. Therefore human testicular lymphatics might not be a constant canal system, but rather akin to narrow tissue space. A network of argyrophilic fibers was pronounced in the lesion of leukemic infiltration. The frequency and grade of an involvement of the testes in malignant lymphoma were lower and lesser than those in leukemia.

Adolescent↗