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Arterial elastorrhexis: manifestation of a generalized elastic tissue disorder in β‐thalassaemia major
Author(s) -
Tsomi K.,
KaragiorgaLagana M.,
Fragodimitri C.,
Karabatsos F.,
Katsiki V.
Publication year - 1999
Publication title -
european journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 84
eISSN - 1600-0609
pISSN - 0902-4441
DOI - 10.1111/j.1600-0609.1999.tb01130.x
Subject(s) - pseudoxanthoma elasticum , pathology , medicine , elastin , spleen , parenchyma , internal elastic lamina , autopsy , lymph , stromal cell , connective tissue , artery
Abstract: Pseudoxanthoma elasticum‐like lesions of the eye and skin are frequently observed in β‐thalassaemia, and there has been speculation about associated vascular lesions. This led to our study of histopathological material from thalassaemic patients. Histological re‐examination was made of a series of 45 spleens and 45 surgical liver biopsies from 45 patients with β‐thalassaemia major, aged 6–25 yr and treated over the 20‐yr period 1975–95. Correlations between clinical, laboratory and histological findings were demonstrated by statistical analysis. Arteriopathy characterized by fragmentation and multiple defects of the internal elastic lamina (‘arterial elastorrhexis’), with deposits of iron and calcium salts, was found in the hilar arteries of the spleen with a frequency of 96%. Similar lesions were observed in the parenchymal arteries and the stromal elastic tissue (‘stromal elastorrhexis’) of the spleen, liver and lymph nodes. Arterial and elastic tissue alterations appear in the first decade of life and become generalized over the course of the disease, independent of the time of onset of transfusion and iron chelation therapy. Arterial elastorrhexis is the earliest and most frequent manifestation of a systemic elastic tissue disorder in β‐thalassaemia major. It appears to be an acquired pseudoxanthoma elasticum‐like syndrome, related primarily to tissue hypoxia and disturbance of elastin metabolism.