Increased genital uptake of 99mTc red blood cells: A potential cause of false-positive studies for gastrointestinal bleeding

Richard L. Wahl, Marie E. Lee

Research output: Contribution to journalArticle

Abstract

We have recently seen several 99mTc labeled red blood (Tc-RBC) cell studies, for the localization of gastrointestinal (GI) bleeding, which were difficult to interpret because of increased activity in the low abdomen, which was found due to male genital activity. To examine the extent of this problem six recent Tc-RBC studies for GI bleeding in males were examined for the presence of penile activity. Penile activity was seen in all males and was marked enough to require additional views in four. Lateral views readily separated penile from rectal activity, showing that the activity was not posteriorly located. Twenty-four Tc-RBC studies on females were also examined. Although modest levels of perineal activity could be seen, this did not cause problems in diagnosis. Attention to this common problem in males should prevent false-positive diagnoses of GI bleeding from the rectum.

Original languageEnglish (US)
Pages (from-to)245-246
Number of pages2
JournalEuropean Journal Of Nuclear Medicine
Volume9
Issue number5
DOIs
StatePublished - May 1984
Externally publishedYes

Fingerprint

Erythrocytes
Hemorrhage
Rectum
Abdomen

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Increased genital uptake of 99mTc red blood cells : A potential cause of false-positive studies for gastrointestinal bleeding. / Wahl, Richard L.; Lee, Marie E.

In: European Journal Of Nuclear Medicine, Vol. 9, No. 5, 05.1984, p. 245-246.

Research output: Contribution to journalArticle

@article{286ae23e2fef40d6835a9f38be16a0c2,
title = "Increased genital uptake of 99mTc red blood cells: A potential cause of false-positive studies for gastrointestinal bleeding",
abstract = "We have recently seen several 99mTc labeled red blood (Tc-RBC) cell studies, for the localization of gastrointestinal (GI) bleeding, which were difficult to interpret because of increased activity in the low abdomen, which was found due to male genital activity. To examine the extent of this problem six recent Tc-RBC studies for GI bleeding in males were examined for the presence of penile activity. Penile activity was seen in all males and was marked enough to require additional views in four. Lateral views readily separated penile from rectal activity, showing that the activity was not posteriorly located. Twenty-four Tc-RBC studies on females were also examined. Although modest levels of perineal activity could be seen, this did not cause problems in diagnosis. Attention to this common problem in males should prevent false-positive diagnoses of GI bleeding from the rectum.",
author = "Wahl, {Richard L.} and Lee, {Marie E.}",
year = "1984",
month = "5",
doi = "10.1007/BF00448548",
language = "English (US)",
volume = "9",
pages = "245--246",
journal = "European Journal of Nuclear Medicine and Molecular Imaging",
issn = "1619-7070",
publisher = "Springer Verlag",
number = "5",

}

TY - JOUR

T1 - Increased genital uptake of 99mTc red blood cells

T2 - A potential cause of false-positive studies for gastrointestinal bleeding

AU - Wahl, Richard L.

AU - Lee, Marie E.

PY - 1984/5

Y1 - 1984/5

N2 - We have recently seen several 99mTc labeled red blood (Tc-RBC) cell studies, for the localization of gastrointestinal (GI) bleeding, which were difficult to interpret because of increased activity in the low abdomen, which was found due to male genital activity. To examine the extent of this problem six recent Tc-RBC studies for GI bleeding in males were examined for the presence of penile activity. Penile activity was seen in all males and was marked enough to require additional views in four. Lateral views readily separated penile from rectal activity, showing that the activity was not posteriorly located. Twenty-four Tc-RBC studies on females were also examined. Although modest levels of perineal activity could be seen, this did not cause problems in diagnosis. Attention to this common problem in males should prevent false-positive diagnoses of GI bleeding from the rectum.

AB - We have recently seen several 99mTc labeled red blood (Tc-RBC) cell studies, for the localization of gastrointestinal (GI) bleeding, which were difficult to interpret because of increased activity in the low abdomen, which was found due to male genital activity. To examine the extent of this problem six recent Tc-RBC studies for GI bleeding in males were examined for the presence of penile activity. Penile activity was seen in all males and was marked enough to require additional views in four. Lateral views readily separated penile from rectal activity, showing that the activity was not posteriorly located. Twenty-four Tc-RBC studies on females were also examined. Although modest levels of perineal activity could be seen, this did not cause problems in diagnosis. Attention to this common problem in males should prevent false-positive diagnoses of GI bleeding from the rectum.

UR - http://www.scopus.com/inward/record.url?scp=0021250056&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021250056&partnerID=8YFLogxK

U2 - 10.1007/BF00448548

DO - 10.1007/BF00448548

M3 - Article

C2 - 6610553

AN - SCOPUS:0021250056

VL - 9

SP - 245

EP - 246

JO - European Journal of Nuclear Medicine and Molecular Imaging

JF - European Journal of Nuclear Medicine and Molecular Imaging

SN - 1619-7070

IS - 5

ER -