Abdominal abscess. I. Computed tomographic appearance, differential diagnosis and pitfalls in diagnosis

Abdominal Abscess. I. Computed Tomographic Appearance, Differential Diagnosis and PitfallIs in Diagnosis

Lea c. CMU, M.D.* Roif L. sch8.pim, M.D. Vklda

8. Ylu. M.D.

ally Iha\ of moss teslonr of low x-my aneo;ation (runpc 0 to 75 HU). They bmd ,o bo round to owl in

in the dccubiius~position-an ERM we hwe, ar yei. non made. Thickening of adiacent fascia occurs(Rp_

MEDICAL EDUCATJON Q”EsllONS (ADDOMFNAL ABSCESS. 1. CT APPEARANCE, J,m

CONT’NUING

I.

Select the on”, most wrrwt phmsc: The differcnlial diagnosis of abwra includes a. Swum; and hematoma b. Necrotic and cystic neoplasm c. Uninfected and lntbcted cysls d. All nf the above

.UDJAGNOSJSANOFlTPM.LSRiDlAGNOSIS~

2.

Seka the one mwpbotogtc ccitcrioo tixt ts Thor* oxwistcnt . . Tbblratl b. Conteas in a rdati~ly tow cana of x-ray attenuation c. Marked magblal irqularlty d. Round m oral shape

with the diogmnir of absorb:

3.

Sekct Ur 0~. most inmncct statement prtainit;~ no iibsem: a. Gastric fundus and/or other bawl stwcture, b. Pyvmctritis and/w tubowariaa cl’u c. Pswdocyst ol the pancreas d. none of the abme

4.

S&x? the last likely madon for failing to idertify on abdominal obsess: a. Faiturc to inctudt! the area of the abdomen that mntoins the abscess b. Unartainty of the exact Ioc~twn of the right hemidinphr.qm c. The diiltia inbacnt in differentiating brtwen abbrmes and .semus cysts. hcrmton~~~. scmms. nm woplzrms. etc. d. The fact that the x-ray atenuation mctliciert ot. an abrwrs is usually identical to that of s&d nea plasm. whether benign or mulignmut

to a paAl

list of structures

that could be mlatnkm

For