34
Dynamic Radiology of the Abdomen Normal and Pathologie Anatomy Second Edition

Normal and Pathologie Anatomy - Home - Springer978-1-4757-3958-9/1.pdf · 1 Normal Anatomie Relationships and Variants I ... Normal and Pathologie Anatomy six years ago, literally

  • Upload
    voanh

  • View
    224

  • Download
    0

Embed Size (px)

Citation preview

Dynamic Radiologyof the AbdomenNormal and Pathologie Anatomy

Second Edition

Dynamic Radiologyof the AbdomenNormal and Pathologie AnatomySecond Edition

Morton A. Meyers, M.D.Professor and ChairmanDepartment of RadiologySchool of MedicineState University of New York at Stony Brook

With 1006 illustrations14 in full color

Springer Science+Business Media, LLC

Morton A. Meyers, M.D.Professor and ChairmanDepartment of RadiologySchool of MedicineState University of New York at Stony BrookStony Brook, New York 11794 U.S.A.

Production: Berta SteinerDesign: Caliber Design Planning, Ine.

Library of Congress Cataloging in Publication DataMeyers, Morton A.

Dynamic radiology of the abdomen.Includes bibliographies and index.1. Abdomen-Diseases-Diagnosis. 2. Abdomen-Radi­

ography. I. Tide. [DNLM: 1. Abdomen-Radiography.2. Abdomen-s-Anatomy and histology. WI 900 M615d]RC944.M48 1982 617'.5507572 81-23263

AACR2

@ 1976, 1982 by Springer Science+Business Media NewYorkOriginally published by Springer-Verlag NewYork Inc.in1982.

Softcover reprint of thehardcover 2ndedition 1982

All rights reserved. No part of this book may be translated or reproduced in any formwithout written permission from SpringerScience+Business Media,LLC

The use of general descriptive names, trade names, trademarks, etc. in this publication,even if the former are not especially identified, is not to be taken as a sign that suchnames, as understood by the Trade Marks and Merchandise Marks Act, may accordinglybe used freely by anyone.

9 8 7 6 5 4 321

ISBN 978-1-4757-3960-2 ISBN 978-1-4757-3958-9 (eBook)DOI 10.1007/978-1-4757-3958-9

To my wife, Bea,and my children, Richard and Amy

There are some things which cannot be learnedquickly, and time, which is all we have, mustbe paid heavily for their acquiring. They are thevery simplest things; and, because it takes aman's 1ife to know them, the little new that eachman gets from life is very costly and the onlyheritage he has to 1eave.

Ernest Hemingway (1898-1961) ,Death in the Afternoon

Contents

Prefaee IX

Prefaee to First Edition Xl

Forewords Xlll

1 Normal Anatomie Relationships and Variants I

2 Intraperitoneal Spread of Infeetions 20

3 Intraperitoneal Spread of Malignancies 55

4 The Extraperitoneal Spaees: Normal and PathologieAnatomy 105

5 The Renointestinal Relationships : Normal and PathologieAnatomy 186

6 The Duodenoeolie Relationships: Normal and PathologieAnatomy 223

7 Intestinal Effeets of Panereatitis: Spread along MesenteriePlanes 243

8 The Small Bowel: Normal and Pathologie Anatomy 264

9 The Colon: Normal and Pathologie Anatomy 285

10

11

Internal Abdominal Hernias 318

Pathways of Extrapelvie Spread of Disease 342

12 Dynamies of Plain-Film Analysis of the Abdomen 353

Index 375

vii

Preface

Sinee the publieation of the First Edition of Dynamie Radiology of the Abdomen:Normal and Pathologie Anatomy six years ago, literally hundreds of seientifie articlesin the literature have attested to its basic insights in the understanding andclinieal diagnosis of a speetrum of intraabdominal diseases. Based on radiologiecorrelations with anatomie and pathologie features , the observations have provenreadily applieable and highly accurate by ultrasonography and particularly com­puted tomography (CT) .

This edition is designed to provide a eomprehensive update of these prineiplesand their clinieal applieations, to include not only plain films and eonventionalcontrast studies, but also ultrasonography and CT. To aeeomplish these ends,some seetions have been eompletely rewritten and new seetions and ehaptershave been added. Over 503 illustrations have been added, many of them CTimages . The atla s of anatomie cross-sections in color has been retained, andthese as weIl as all CT images are now oriented aeeording to the eonventiongenerally adopted shortly after the First Edition was published, i.e., as if viewedfrom below with the subjects's right to the viewer's left. While a few of theCT illustrations are not of the highest quality, the reader will understand thatthey have been earefully seleeted for the particular abnormality they demonstrate.The rcferenees have been updated to eite not only classie articles, but seleetionsfrom the literature through 1981 .

Partieular appreeiation is expressed to the following for their cooperation:james L. Clements,jr. , M.D.,jaek Farman, M.D., Gary Ghahremani, M.D. , LeonLove, M.D. , Michael Oliphant, M.D. and Daniel Wise, M.D. A grant from KR.Squibb and Sons made possible mueh of the artwerk for the graphie expositionof the anatomie relationships.

Morton A. Meyers, M.D.

ix

Preface toFirst Edition

This book provides a systematie applieation of anatomie and dynamie prineiplesto the praetieal understanding and diagnosis of intraabdominal diseases. Ana­tomie seetions and injeetion studies form a basis for understanding the eharaeter­istie features of many eommon and uneommon diseases and their spread andloealization in the abdomen. These relationships and speeifie eriteria providea rational system for aecurate radiologie analysis in plain films, eonventionaleontrast studies, ultrasonography, and eomputed tomography (CT) . This infor­mation leads to the uneovering of clinieally deeeptive diseases, the evaluationof the effeets of disease, the antieipation of eomplieations, and the determinationof the appropriate diagnostie and therapeutie approaches.

The introductory atlas presents full color anatomie cross seetions of the abdo­men and pelvis, eomplemented by labeled traeings, and detailed CT seans atcorresponding levels. The seetions, whieh are approximately 3.8 em (1.5 in.)thick, were obtained from fresh eadavers frozen in dry iee for 48 hours, inorder to maintain the true intimate anatomie relationships. The aeeompanyingtext of the atlas stresses normal gross relationships, eommon variants, and thebasis of their radiologie identifieation, partieularly in plain films . The subsequentehapters deal with the diagnosis and the pathways of spread of infeetion, malig­naneies , and traumatie and inflammatory effusions within the intra- and extraperi­toneal spaees. Emphasis is plaeed on the speeifie loealizing features based onthe anatomie planes and reeesses and the dynamies of extension of disease.Sagittal and eoronal as well as horizontal anatomie seetions support the findingsin eonventional radiologie proeedures, ultrasonography, and eomputed tomogra­phy throughout. Correlation with the clinieal findings and management under­scores the value of the radiologie observations. Diagnostie eriteria whieh areeasily applied are established for the eharaeteristie features of speeifie diseaseprocesses ranging from loealized abseesses to disseminated metastases.

Many of the insights detailed in this book have been made only in the pastfew years. The applieation of peritoneography as a clinieal diagnostie study,for example, first indieated the dynamie eireulation of fluid states within theperitoneal reeesses and permitted an insight into the spread of infeetion andmalignaneies. Similarly, the signifieanee ofthe anatomie and radiologie definitionof the extraperitoneal spaees, the small bowel mesentery and other peritonealrefleetions, the haustral eontours of the large intestine, and the eontiguity ofeertain organ relationships has only reeently been appreeiated.

xi

Foreword toFirst Edition

Few books present so fresh an approach and so clear an exposition as doesDynamie Radiology of the Abdomen: Normal and Pathologie Anatomy.

This well-doeumented, clearly written, and beautifully illustrated book detailsthe answers not only to "what is it?" but also "how?" and "why?" Such funda­mental information regarding the pathogenesis of disease within the abdomenreinforces and simplifies accurate radiologie analysis. The eharaeteristie radio­logie features of intraabdominal diseases are shown to be easily identified, ex­panding the praetieal applieation of the term "pattern reeognition." It eertainlyis of praetieal value in daily clinieal experienee and will be of eonsiderable helpfor further advanees.

The traditional dissectional method of learning anatomy disturbs the intimaterelationships of struetures. The sectional anatomy presented in this book is theframework for understanding the findings in eonventional radiology-in plainfilms and routine eontrast studies-as weIl as in ultrasonography and eomputedtomography of the abdomen.

This is not just a review of others' experienees, but a erystallization of theauthor's eontributions over the past several years. Dr. Meyers' eoneept of dy­namie eireulation within the peritoneal eavity is a breakthrough in our under­standing of the spread of intraabdominal disease, particularly abseesses andmalignaneies. Peritoneography, the opaeifieation of the largest lumen in thebody, offers a potential yield of vast diagnostie information. The precise defini­tion of the three extraperitoneal spaees represents a eharting of previously unex­plored territory. Awareness ofthe renointestinal and duodenoeolie relationships,the spread of panereatitis along mesenterie planes, and the pathways of extrapel­vie spread of disease again underseores the praetieal importanee of anatomiefeatures. The approach to the mesenterie and antimesenterie borders of thesmall bowel and to the haustral pattern of the colon adds a new dimension tothe interpretation of abdominal radiology.

This book eonfirms Dr. Meyers' reputation as one of the authorities in normaland pathologie radiologie anatomy of the abdomen.

Riehard H. Marshak, M.D.Clinical Professor of RadiologyMount Sinai Sehool of MedicineNew York City

xiii

Foreword toFirst Edition

Dr. Morton A. Meyers indeed has developed adynamie text relating to radiologieaspeets of abdominal disease. But this statement, with its emphasis on radiology,is misleading. This book is an important reading souree for surgeons. Dr. Meyers'observations have not been eonfined to those arising from a purely radiologiestudy of the abdomen. The inclusion of observations based on injeetion studiesboth in the eadaver and in vivohas given this work a noteworthy eomprehensive­ness.

The insights provided by both the atlas of full-page color anatomie crossseetions of the abdomen and pelvis and the excellent anatomie-radiologie eorre­lations found in the text make the book indispensable. The atlas establishesthe basis for intimate anatomie relationships which are then applied to the praeti­eal areas of clinieal diagnosis and treatment ofintraabdominal pathology. Presen­tations of these diagnostie and therapeutie eonsiderations are enhaneed by illus­trated diseussions relative to the new teehniques of uhrasonography andeomputed tomography.

Dr. Meyers' presentation ofthis timely information is valuable, but what makesthis book invaluable is the vast personal experienee he is able to bring to it.this is not ''just another" book purporting to give us something new in thisimportant field. I believe the special approach given to this subject by Dr. Meyersis truly innovative. The radiologist and surgeon looking for the latest teehniquesin angiography for the diagnosis and treatment of massive bleeding from thegastrointestinal traet will not find it here. What they will find is major help inthe understanding of, and indeed, therapeutic approach to a number of eommonintraabdominal problems, including infeetion and malignaney.

Lloyd M. Nyhus, M.D., F.A.C.S.Warren H. Cole Professorand Chairman, Department of SurgeryThe Abraham Lincoln School of MedieineUniversity of Illinois at the Medical CenterChieago, Illinois

xv

ColorPlates

KE

Y

\ I

(\' 1

)1I

Pen

cnrd

iat

lat

t.e

ttIo

we

r-+J-

:l~L_...J'

'''l..

;--

lohe

01lu

ng

),

l.in

qula

rse

qmen

t~

oll

elt

up

per

lohe

__

_.

oll

ul1U

\\ tI

-..J - --

Sto

rnac

h

I•o.

..J

Hea

rt Il

Rig

htrn

irld

lelo

he

oll

un

gIn

tern

alm

nn

un

arv

vess

els

~-/\

I,

-=-

----~ ,;

--~

~ lR

igh

tlo

beof

Iive

r\

I..!:!

y'"

\HV I

\I

II

HV

IVC

V,\

-e:

-'~

-,

\ \\

.... -~

"-

-.~

Pleu

ralc

avit

v...

...

Infe

rio

rp

hrc

nic

vess

elsXip

ho

idp

roce

ss Inte

rco

stal

vess

els

Au

aort

aIV

Cin

feri

orV

CIl

I'ca

va

HV

h ep

auc

vein

s

Dia

phra

qrn

Peri

ton

enl

cav

ity

Falc

ilo

rmli

gam

ent

Sy

mp

ath

etic

tru

nk

Azy

gos

vein

Th

ora

eie

du

ctH

emia

zygo

sve

in

Sec

tio

n1.

Up

per

abd

om

enat

the

leve

lo

fth

e1

0th

tho

raei

eve

rte

bra

.

Peri

ton

eal

cavi

tv(p

eris

plen

icsp

ace

l

Le

ftIU

ll\l

Oh'

Jlhr

ilgl

ll

Mt:..

"Ctia

lcr

ura

I'-0

1th

c~

dia

ph

rnq

ms

Oia

ph

rag

m

Po

stu

rio

rp

arar

en

al

extr

ap

ert

ton

ect

fat

.......

Co

lon

Ep

icar

dia

lta

l

Sh

ort

\last

rie

.-

vess

els

::X::o

:=::

:>

'"

Sp

lee

n

,

T10

Cau

dute

lohn

Le

ftlo

he

01ti

ver

IVC

HV

Reclu~

abd

om

inis

mu

sele

X,p

holc

ln

roce

ssIn

tern

alm

arn

rnar

vve~",I~

-\~:

j,

Rig

hl

loh

e01

Iive

r

Fal

cifo

rmIi

yam

ent

lnte

reo

stn

lvc

sset

s

D",

plir

aylll

Rlg

ht

lun

g

Ple

ura

lca

viIy

Per

uo

neut

cev

itvj<

'~

-c

Ri!

lht

IUl1

g

Les

ser

om

en

rum

[qas

trch

eu

auc

1i\li

lmen

tl

KE

Y

Ao

aurl

,1

IVC

mfu

riu

lVlH'~

CiJ

Va

HV

I",p

allc

Will

Sv

rnp

ath

eu

ctr

un

kA

lygO

Sv

emT

ho

racr

cd

ucI

Hem

lalY

<IOS

veon

See

tion

2.U

pp

erab

do

men

atth

ele

vel

of

the

low

erb

ord

ero

fth

e10

thth

orae

iev

erte

bra

.

Lig

amen

tum

vcno

sum

Lcs

scr

om

en

rum

(gas

tlO

hepa

tic

liga

men

t)

Sp

len

ere

nal

ligam

ent

Xip

hoic

Jpr

oces

s

\

r\

\I

Peri

tone

al

~ca

vity

LBo<""

""I

panc

reas

Pos

teri

orpa

rare

nal

extr

aper

ito

nea

lIa

t

'"

lt--r-L

-I'

.G

reat

er'\

I.r

{O

men

turn

I.

JI

~}

'\I

Gas

tro

sple

nic

~..::

:;:=:==-_

-:..

_Y_

I1\

.li

gam

ent

::;.-+

t-Sp

ien

ieve

sse

ls

Spl

een

Sto

ma

ch

Infe

rior

ph

ren

icar

tery

Lef

tlo

beot

live

r

Hem

iazy

gos

vein

cavi

tyln

tern

alm

amm

ary

vess

els

Fal

cifo

rrn

lica

mcn

tAR~

",ah

dorn

ini

mus

cle

Sy

mp

ath

etic

tru

nk

Peru

one

at

Tho

raei

ed

uc

t

Rig

htlo

beof

liver

Post

erio

rpa

rare

nal

extr

aper

ito

nea

lfa

t

Med

ial

crur

ao

fth

ed

iap

hra

qrns

Ple

ura

l-

cavi

tv

Azy

gos

vein

KE

Y

o;"h

,,"m~

Ao

~A

orta

IVC

~in

feri

orve

naca

va

Infe

rior

ph

ren

ica

rter

y

Sec

tion

3.U

pp

erab

do

men

betw

een

the

lOth

and

llth

thor

acic

ver

teb

rae.

Gre

ater

ome

ntu

rn

Sple

nic

vess

els

Lcf

tad

rena

lgl

and

Lef

tqa

stri

car

tery

and

coro

nar

yve

in

Pcri

tonc

al,

••

cav

ity

I.

(per

ispl

en

icsp

ace

)

Gas

troc

olic

ligam

en

t

"

Sup

erio

rm

esen

teri

car

tery

Rec

tus

ahdo

min

ism

use

leF

alci

form

ligam

en

t

Qu

adra

telo

beof

liver

Inte

rco

stal

arte

ryI

\\A

nte

rior

rena

lfa

seia

Med

ial

crur

aof

the

di a

phra

gms

Infe

rio

rph

ren

icar

tery

Pos

teri

orre

nal

fasc

ia

Infe

rior

ph

rcn

icar

tery

and,/

~-<

;/

/I

/I

I\

\....-"

Per

iren

alfa

tsu

peri

or

adre

nal

arte

ry

l'

'~

Dia

ph

ragm

t,

"

KE

Y

Les

ser

omen

turn

(gas

troh

epat

icli

gam

ent)

Ao

=ao

rta

IVC

=in

feri

orve

na

cava

Hep

ati

cd

uct

Hep

atic

arte

ry

~.Ds...llJ;>

u. ~

...o-s-s--

KE

Y

Ao

=ao

rta

IVC

infe

rio

rve

naca

vaT

C=

tran

sver

seco

lon

Gas

tro

du

od

enal

arte

rv

Po

rtal

vain

II..

-',/(

\~,'

?c

Cau

dat

elo

be

"I:

in'

Riq

ht

adre

nal

gla

nd

Infe

rior

phre

nic

a rte

ry

lelt

gast

ric

"nery

and

coro

na

ryve

in

Du

oden

oje

jun

atiu

nc

tion

Infe

rio

rm

esen

teri

cve

ssel

s

Gre

ato

ro

men

tum

Ph

ren

ico

coli

cliu

amen

l

~~~

~~~~

ncfing

~t

"'"....

.......:._~

"bl::~

-..~~

Her

nia

zvq

os

vern

Sple

nore

nal

lilla

men

t

Di a

ph

raqr

n

,h,c

~'

l'IP

crit

on

cal

cav

itv

Po

ster

ior

rena

lIa

scia

Ou

adra

tus

lum

be

rum

rnu

scle

Pso

asm

uscl

eM

edia

lcr

ura

ofth

ed

iap

hraq

rns

le

ltad

ren

algl

ancf

Tra

nsvc

rsa

lisIa

scia

See

tion

5.

Up

per

abd

om

en

atth

ele

vel

of

the

Ist

lum

bar

vert

ebra

.

KE

Y

Des

cend

ing

colo

n

Unc

inat

ep

roce

ssof

panc

reas

Sup

erio

rrn

esen

teri

car

tery

Du

oden

oie

jun

al

[unc

tion

IM

esen

tery

Gas

tro

coli

c

ligam

ent

Lef

tre

nalv

ein

Lef

tki

dne

y

"(

I '\

\I

L2

Med

ialc

rus

01d

iaph

ragm

,()

Rig

ht

kidn

ey

\ "

,

\1

Pso

asrn

usc

le

Peri

ren

alla

t

ieiu

num

tran

sver

seco

lon

aor

tain

feri

or

vena

cava

Peri

ton

eal

cavi

ty

H".,.

",.~,:'""""b'~

01co

lon

;

Gal

lbta

dder

Du

oden

alb

ulh

_

Com

mon

{"I

,

bile

du

ct,

I.-

-~

.'I

I{

,L

.

Gas

tro

du

oden

alar

tery

I1

(J

,I

)

Rig

htlo

he

01

liver

Rig

htre

nal

arte

rv

Ou

adra

tus

lum

horu

mm

usc

le

Per

ito

nea

lca

vitv

(rig

hlpo

ster

ior

subh

epat

icsp

ace)~

Ren

alIa

scia

Ao

IVC J

TC

Rig

hlre

nal

II

Ive

in

Sec

tion

6.A

bd

om

enat

the

leve

lo

fth

e2

nd

lum

bar

ver

teb

ra.

I<E

Y

SU

Per

ior

tneS

/mee

ric

areu

ry

Ren

alfa

SC;a

J

/S

UP

eriu

rtn

estil

l,er

;cve

;n

TC

..........

.

'-~"

~D

I"

<,

eSC

enr

/lJg

cOl o

ll

Per

irel

lal

f,11

J

Tra

nsV

erse

rlu

orl

elJU

tn ~

TC

~----

--J

J

-...

....

....

."'~

"""

Le

flkid

ney

TC

40

TC

Tra

ns

/

.ver

salis

f"

il·sr

.liI

TC TC

IVC

R~,",

"'~"""

,,"'""

~,,~

Ilre

ler

TC

TC

P.SOil

Sm

Us<

:le

\

R'""

'''"''

~

.....

.

I

J

'

L3

,4n

t«:

,

A"".~,•

riu

oau

num

\

\

Tra

nS

Ver

se

meS

OCO

lon

IVC

infe

rio

rve

naCi

/va

Au

-aO

rt..

TC

Ir;I

IlsV

urse

cU/o

n

J;e

;unu

/IJ

Per;

ron

eal

caV

ily

(rif}h

rfJaf;

)COliC~

f}Ulle

r)

/J/

/;J

Asc

enrl

ing

CO

/Oll

Rig

hrl

Ob

e/.

........

...

of

live

r~

<,

OU

adra

lus

/um

bo

rUtn

tnu

sc/e

See

tio

n7.

Ab

do

men

betw

een

the

3rd

and

4th

lum

bar

ver

teb

rae.

KE

Y

Ao

IVC J I

TC

ao

rla

infe

rio

rve

naca

va

jeju

llum

ileum

Iral

lsve

rse

colo

n

Mes

cllt

ery

Des

eend

in9

colo

n

Mes

elll

ery

wit

hin

tes

tina

l

vess

ets

Post

erio

r

/Jari

eta!

per

ito

neum

\ Late

roco

nal

fase

ia

\L

eft

colic

vein

Peri

rena

lIa

t

..PO

Sler

ior

rena

lfa

seia

Let

tk

ic/n

ey

" -

JI

.Il:"

='./

I~

II

Al1

leri

or

rena

lfa

seia

Sy

mpa

thet

ictr

unk

Ure

ter

L4

----

\---

Ri9

hl

kidn

ey

Pso

asm

usel

e

t

'"

Post

erto

rre

nal

fase

ia

I

\\

\ 1 \

Peri

rena

lta

t

Ase

elld

in9

colo

n

Ext

erna

labd

omin

al

obli

que

rnus

cle

\

Post

erio

r/J

arie

'a'

/Jer

itol

leum

Inte

rnal

ahc/

orni

nal

\

ob

"o",

mus

cts~

Tra

llsve

rsc

abdo

rnil

lal

lm

use

le

I,L

I

--

_.

II

IA

nte

rior

rena

lfa

scia

See

tio

n8.

Ab

do

men

atth

ele

vel

of

the

4th

lum

bar

ver

teb

ra.

KE

Y

IMile

urn

TC

=tr

ansv

erse

colo

nS

C=

sigm

oid

colo

n

Infe

rio

rep

igas

tric

arte

ry--..L

,/

....

.--

....

/~~

......

Mes

ente

ryw

ith

inte

stin

al

vess

els

Ileo

coli

c)

\!,

~\~

vess

els

:\.

\,

,•

Co

mm

on

iliac

arte

ry

Co

mm

on

iliac

vein

Med

ials

acra

lart

erv

Fem

ora

lan

dob

utr

ator

nerv

es

Ext

ern

alab

dom

inal

ob

lique

rnus

cle

Inte

rnat

abdo

min

al

ob

lique

mu

scle

Tra

nsve

rse

abdo

min

alm

usei

e

Ure

ter

Des

cend

ing

colo

n

Ilia

cus

mu

scle

Sec

tio

n9

.A

bd

om

enat

the

leve

lo

fth

e5

thlu

mb

arve

rteb

ra.

I<E

'r'

I"

ileum

sc~

si9m

oir/

Colo

n

EX

tern

al

i/iae

ancr

y

OeS

Ce

nd

ing

cO/o

n\

Tra

nsv

erse

ab

do

min

al

mU

SC/e

Exte

rna/

i/iae

vein

\

HYP

oga

stri

ca

ne

ry

Ext

erna

ta

hd

om

inal

ob

liqu

em

Use

Ie

I

\

~

<, ~

Uri

nary

h1a

dd

er

SI

Ure

/er

Ree

tus

abdom~in

iSmU

SCle

Gre

a/er

om

en

tum

~.-

-----)

..........

..~---

-~

"'<

;

~~=-

---

--~~-

--~

..~'"

"

=~----~{';,

,'n.,

_'"

~b-"

\\\ \\\

~~,

\---

~:=-~

.....--=

---.-

:.--

L5

~.::

--

\. , -----

)) \ SaC

rOi/i

aeiO

int

Asc

end

'

Anr

er'

II)g

cor

'~~/U/ler

iorO

n~

aeSP

ine\

---

---

.":'

.--:

"

r-~.-

-'

\ .1

'\F

em

ora

l

nerv

e

II

q\',

/

\\.

\~

Psoas

,\\

\'

_

mU

SC/e

\I

",

\.'-

I

\\

-,

"''''''

-.

,

'.

"'-

\-

<;

m"~"

i.~

~"-\

G/U

teu

sJ-

y-

."'-l

min

imu

sI

)\<

,'_

mU

sete~

-.......:::-

.......'

........

....

'\

\

'.........

.....\'

G'",,,,

,,~,

\1,I

med

,us

......

......

.

mu

sc/e

\

'~::""

\\

"\

~

SUpe

rior

g/U

tea/

'~'-.

_

.l.;

J

vess

els

....

"

'....~

'-~

-'--

__~

I

'~

---

----

7'

G'"''

'''m'''m

",_

__

__

,_

'""~"

,"""",

,,---

----S

aera

tfo

ram

enan

dne

rve

HY

/Jog

astr

ieve

in

ci-s::o.~

\J111

CI}

KE

Y

sc=

sigm

oid

colo

n

Infe

rio

rep

igas

tric

vess

els

Rec

tus

abdo

min

ism

usc

le

Cec

um

Ant

erio

rin

feri

orili

acsp

ine

" /-..

.,I

llio

psoa

s'\

mu

scle

".,...

.. ~'"

Sig

moi

dm

eso

colo

nsc

sc

Ext

ern

alili

acve

in

Hyp

oga

stri

car

tery

Hyp

oga

stri

cve

in

Ure

t er

Ex

tern

al

___------------------

iliac

arte

rv

Si!

lmo

idm

eso

colo

n

S1

SCUri

nar y

blad

der

Piri

f orm

i sm

usc

le

,

Sac

rum

\

Supe

r ior

glut

eal v

esse

ls

\ \

Glu

teu

sm

ediu

sm

usc

le

Sac

roili

acjo

int

lIia

cb

on

e

G1u

teu

sm

ax

imu

sm

uscl

e

G1ut

eus

min

imus

\\

\\m

uscl

e

See

tion

11.

Low

erab

do

men

atth

ele

vel

of

the

lst

sacr

alve

rteb

ra.

Obt

ura

tor

inte

rnus

mu

seie

Pec

tine

usm

uscl

eF

emor

alve

in

~~

..........

..........

Hio

pso

asrn

uscl

e

(\.~

/

:'5j

~---

Fem

ora

lart

ery

--~

~~"\ '\-

~

-~\.

Obt

ura

tor

exte

rnus

mus

cle

Rec

tum

Co

ccyx

Sy

mph

ysis

pub

isPy

ram

idal

ism

uscl

ePr

ost

ate

glan

d

Infe

rior

glu

tea

lve

ssel

s

See

tion

12.

Mal

epe

lvis

atth

ele

vel

of

cocc

yxan

dsy

mph

isp

ub

is.