Peritoneal Calcification: Causes and Distinguishing Features on CT

Atul Agarwal, Benjamin M. Yeh, Richard S. Breiman, Aliya Qayyum, Fergus Coakley

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

OBJECTIVE. We undertook this study to determine the causes of peritoneal calcification seen on CT and to investigate which CT features distinguish benign from malignant peritoneal calcification. MATERIALS AND METHODS. Seventeen patients with peritoneal calcification were identified through retrospective review of reports from 74,765 abdominopelvic CT examinations performed during a 7-year period. We determined the cause of peritoneal calcification by examining medical and histopathologic records. Calcification morphology was classified as nodular or sheetlike on the basis of the consensus interpretation by two independent radiologists. The radiologists also recorded the presence or absence of associated soft-tissue components or lymph node calcification. The association between the CT findings and the cause of calcification was assessed using chi-square analysis. RESULTS. Peritoneal calcification was due to peritoneal dialysis (n = 4), prior peritonitis (n = 3), cryptogenic origin (n = 1), or peritoneal spread of ovarian carcinoma (n = 9). Sheet-like calcification was more common in patients with benign calcification (seven of eight patients) than in those with malignant calcification (two of nine patients, p <0.05). Nodal calcification was seen only in patients with malignant calcification (five of nine patients vs none of eight, p <0.05). CONCLUSION. Common causes of peritoneal calcification are dialysis, prior peritonitis, or ovarian cancer; sheetlike calcification indicates a benign cause, whereas associated lymph node calcification strongly suggests malignancy.

Original languageEnglish (US)
Pages (from-to)441-445
Number of pages5
JournalAmerican Journal of Roentgenology
Volume182
Issue number2
StatePublished - Feb 2004
Externally publishedYes

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Peritoneal Dialysis
Peritonitis
Lymph Nodes
Ovarian Neoplasms
Medical Records
Carcinoma
Neoplasms
Radiologists

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Agarwal, A., Yeh, B. M., Breiman, R. S., Qayyum, A., & Coakley, F. (2004). Peritoneal Calcification: Causes and Distinguishing Features on CT. American Journal of Roentgenology, 182(2), 441-445.

Peritoneal Calcification : Causes and Distinguishing Features on CT. / Agarwal, Atul; Yeh, Benjamin M.; Breiman, Richard S.; Qayyum, Aliya; Coakley, Fergus.

In: American Journal of Roentgenology, Vol. 182, No. 2, 02.2004, p. 441-445.

Research output: Contribution to journalArticle

Agarwal, A, Yeh, BM, Breiman, RS, Qayyum, A & Coakley, F 2004, 'Peritoneal Calcification: Causes and Distinguishing Features on CT', American Journal of Roentgenology, vol. 182, no. 2, pp. 441-445.
Agarwal, Atul ; Yeh, Benjamin M. ; Breiman, Richard S. ; Qayyum, Aliya ; Coakley, Fergus. / Peritoneal Calcification : Causes and Distinguishing Features on CT. In: American Journal of Roentgenology. 2004 ; Vol. 182, No. 2. pp. 441-445.
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