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A total of 101 patients with a palpable or suspected abdominal mass of unknown origin were examined by computed tomography (CT). In 69 patients an abnormality was demonstrated at the site of the palpable mass; only in one patient was this finding erroneous (false positive). In 32 patients no lesion was demonstrated (one false negative). Such high positive and negative predictive values (99% and 97%) indicate the value of CT in determining the presence or absence of a lesion to account for a clinically apparent mass, especially when there is doubt as to its presence or organ of origin. As to the cause of the mass, CT correctly identified the responsible organ or structure in 64 out of 69 patients with a lesion (93%) and suggested the likely nature in 61 (88%).
M P Williams, and
I H Scott, and
A K Dixon
March 1998,
Revista clinica espanola,
M P Williams, and
I H Scott, and
A K Dixon
May 2007,
Revista espanola de enfermedades digestivas,
M P Williams, and
I H Scott, and
A K Dixon
May 2015,
North American journal of medical sciences,
M P Williams, and
I H Scott, and
A K Dixon
May 1981,
Lancet (London, England),
M P Williams, and
I H Scott, and
A K Dixon
May 1990,
Revista clinica espanola,
M P Williams, and
I H Scott, and
A K Dixon
July 2017,
Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen,
M P Williams, and
I H Scott, and
A K Dixon
April 2006,
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America,
M P Williams, and
I H Scott, and
A K Dixon
October 2019,
Gastroenterology,
M P Williams, and
I H Scott, and
A K Dixon
January 1982,
Ugeskrift for laeger,
M P Williams, and
I H Scott, and
A K Dixon
April 2014,
BMJ (Clinical research ed.),
