PMID: 1201631Jul 1, 1975Paper

The accuracy of radiological diagnosis of benign, primarily and secondarily malignant gastric ulcers and their correlation with three simplified radiological types

Clinical Radiology
A Schulman, K C Simpkins

Abstract

Two radiologists individually gave 'blind' diagnoses of benignancy or malignancy to 145 radiographic representations of gastric ulcers, all with gastrectomy histological proof of benignancy or malignancy. A radiological diagnosis of malignancy was shown to be 98-6% reliable. A diagnosis of benignancy was less reliable (85-4% true positives) but this was a surgical series containing thereby an abnormally high proportion (over a third) of malignant ulcers. A correct diagnosis was mde in 99-5% of the proven benign ulcers, but in only 68-6% of the proven malignant ulcers. Analysis of the pathology reports on the malignant ulcers has shown that it was mainly those arising on the basis of pre-existing benign ulcers (i.e. secondarily malignant ulcers) that were wrongly diagnosed radiologically, thus suggesting that they have fundamentally different radiographic appearance from that of primarily malignant ulcers. It was then found that the ulcers could be divided into three simplified radiological types based on their in-profile appearances: type 1 (projecting), type 2 (intraluminal) and type 3 (so shallow as to be neither projecting nor intraluminal). Statistical association with the histological types led to the following conclusions...Continue Reading

References

Oct 1, 1969·The British Journal of Surgery·M W GearM M Boddington
May 1, 1954·The British Journal of Surgery·A D MORGAN, E S LEE
Oct 1, 1954·A.M.A. Archives of Internal Medicine·M W COMFORTR A McNAUGHTON
Sep 1, 1957·The American Journal of Digestive Diseases·B S WOLF, C J SHERKOW
Mar 1, 1960·Radiology·N M STRANDJORDR L SCHWEINEFUS
Sep 1, 1963·Archives of Surgery·P A DUHAMELW S HAUBRICH
Dec 12, 1959·Journal of the American Medical Association·S L ROBBINS
May 1, 1949·Radiology·C A STEVENSON, C W YATES

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