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Editor-in-chief
Maria Stella Graziani

Deputy Director
Martina Zaninotto

Associate Editors
Ferruccio Ceriotti
Davide Giavarina
Bruna Lo Sasso
Giampaolo Merlini
Martina Montagnana
Andrea Mosca
Paola Pezzati
Rossella Tomaiuolo
Matteo Vidali

EIC Assistant
Francesco Busardò

International Advisory Board Khosrow Adeli Canada
Sergio Bernardini Italy
Marcello Ciaccio Italy
Eleftherios Diamandis Canada
Philippe Gillery France
Kjell Grankvist Sweden
Hans Jacobs The Netherlands
Eric Kilpatrick UK
Magdalena Krintus Poland
Giuseppe Lippi Italy
Mario Plebani Italy
Sverre Sandberg Norway
Ana-Maria Simundic Croatia
Tommaso Trenti Italy
Cas Weykamp The Netherlands
Maria Willrich USA
Paul Yip Canada

Publisher
Biomedia srl
Via L. Temolo 4, 20126 Milano

Responsible Editor
Giuseppe Agosta

Editorial Secretary
Chiara Riva
Biomedia srl
Via L. Temolo 4, 20126 Milano
Tel. 0245498282
email: biochimica.clinica@sibioc.it

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ISSN print: 0393 – 0564
ISSN digital: 0392- 7091

BC: Articoli scritti da M. Crespi

Un raro caso di mesotelioma multicistico del peritoneo associato ad aumento di CA 125 e CA 19.9 nel siero
A rare case of benign multicystic mesothelioma of the peritoneum associated to CA 125 and CA 19.9 elevations in serum
S. Ferraro \| R. Mozzi \| C. Villa \| M. Crespi \| M. Panteghini \|
<p>Markedly increased CA 125 and CA 19.9 concentrations in serum are considered specific enough to reliably identify malignant cancers (ovarian and gastrointestinal tumours, respectively), although a consistent body of literature has reported marker elevations in several benign conditions. Here we report the case of a woman in post-menopausal status, with a previous history of hysterectomy, presenting with a 12-cm pelvic mass at sonography and serum CA 125 and CA 19.9 concentrations >400 kU/L. One month after initial presentation, she underwent surgical evaluation for laparoscopy, repeating marker determinations. Concentrations of CA 125 and CA 19.9 were still elevated, but decreased if compared with the previous data (~200 kU/L). Magnetic resonance imaging characterized a multicystic mass in the mesentery, allowing to hypothesize a benign multicystic mesothelioma of the peritoneum (BMMP). The laparoscopy revealed multiple cysts, some of them resulting in colliquation, associated to ascites. Histological examination of biopsy specimens confirmed BMMP as composed of multiple, thin-walled, irregularly spaced cysts lined by flattened and cuboidal mesothelial cells. The cystic colliquation was though as the main cause for decrease in marker concentrations. To our knowledge, this is the first case of BMMP associated with significantly increased concentrations of CA 125 and CA 19.9 and their decrease before any surgical treatment.</p>
Biochimica Clinica ; 37(3) 241-245 Casi Clinici - Case Report