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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: [The hand in hematologic diseases].
    Author: Scutellari PN, Orzincolo C, Franceschini F.
    Journal: Minerva Med; 1993 Oct; 84(10):511-21. PubMed ID: 8247305.
    Abstract:
    Radiography of the hand often reflects the picture of generalized diseases, affecting both the muscolo-skeletal system and the others. Some of the most common hematologic disorders may be detected in roentgenograms of the hand, especially in the anemias, but also in plasma cell dyscrasias and proliferative malignant diseases (i.e., lymphomas and leukemias). On the basis of their experience, the authors have reviewed and discussed the radiographic "pattern" of the hand in several hematologic conditions (i.e., anemias; thalassemias; sickle-cell disease; lymphomas; multiple myeloma; etc.), and their pathogenesis. Radiographies of both the hands, in antero-posterior view, were performed using Kodak-Min R film; xeroradiography was performed--in the same projection--using Rank Xerox plate, developed always in "positive mode" in 125 Rank Xerox System, conditioned with contrast "D", for emphasizing osseous details. Recently, digital radiography--employing PCR system--has substituted xeroradiography, because of its well-known properties and diagnostic advantages: in this manner, changes in bone and soft tissue are demonstrated on the same image, with augmentation of diagnostic information, with reduced dose to patient. In our series, hand is always involved (100% of cases) in thalassemias: lesions are characterized by diffuse osteopenia (washed out melted appearance), with widening of bone marrow space, diaphyseal convex aspect of the long bones, thinning of the cortex, and cyst-like changes (rain drops). Lesions disappear completely after the hypertransfusion regimen (HTR). Following chelation therapy, lesions of the wrist and hand are similar to those described in rickets and/or scurvy. Sometimes, the hand is characteristically affected in sickle-cell disease--particularly in the so called hand-foot syndrome--as "cone-deformity". In multiple myeloma incidence of hand involvement is 2.9%: lesions reflect general abnormalities observed in other skeletal sites, and they consist in multiple well-circumscribed lytic lesions. In amyloidosis, poorly defined radiolucent areas may be discovered. In non-Hodgkin lymphoma, incidence of hand involvement is less frequent, approximately 0.2%: the radiographic pattern is aspecific (mottled lytic lesions), sometimes simulating multiple myeloma and/or leukemias. In hemophilia, swelling of soft tissues, around the interphalangeal joint, related to intra-articular and/or per-articular hematoma, is observed. The other conditions reflect general radiographic features of anemias, which are of three main types: 1. the over active marrow (i.e., polycythemia); 2. the infarction of bone (i.e., sickle-cell disease); 3. non-specific findings, resulting from chronic illness (delays of maturation; dwarfism; osteopenia; tendency to infection).
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