I Dr. Sreekanth and my learned friend Dr. Diyanathullah Shareef strongly believe that variant Anatomy illuminates embryology . Few variations are outstanding and can pose a serious challenge to the clinicians expertise even though existence is very much possible with them. Knowledge is power and the unusual circumstances can be faced with courage rather than fear and surprise .Its a small effort throwing light on these variations with tremendous klinikal relevance.
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Friday, 22 June 2012
Wandering/Floating Gall bladder
Inferior surface of Liver
The images above show the Gall bladder lying out of the inferior surface of liver and extending much beyond the inferior border.The gall bladder fossa is covered by peritoneum.
Last 4 images
Gall bladder is lifted up along its body, fundus and cystic duct in different directions showing that it is not lying in its fossa
Thursday, 21 June 2012
CME on pancreas
Anatomy of pancreas presented by Dr.Sreekanth.T
For complete power point presentation kindly click the below link
http://www.slideshare.net/abdurrahmanhaq/cme-pancreas2
For complete power point presentation kindly click the below link
http://www.slideshare.net/abdurrahmanhaq/cme-pancreas2
Wednesday, 20 June 2012
Thyroid gland ppt
For complete PPT presentation follow the link below
http://www.slideshare.net/abdurrahmanhaq/anatomy-of-thyroid-gland-cme
Friday, 27 April 2012
wandering or floating(gall blader without galbladder fossa)
the floating galbladder being lifted to the extreme right surface of the liver.
the galbladder is lifted up to the extereme left side of the liver.the fundus ,body and cystic duct were all being lifted upfrom the inferior surface.s
the galbladder is fully lifted up from the inferior surface,the peritoneum is seen covering the entire gal bladder fossa.
the fundus of the galbladder is not reaching(falling short of) the inferior border of the liver
the small gal bladder in its fossa ,not able to reach the inferior border of the livSer
wandering or floatinggalbladder seen on inferior surface of the liver, there is no gal bladder fossa
Tuesday, 24 April 2012
Accessory renal artery
Left kidney with twin accessory renal arteries
During the routine dissection hours a cadaver displayed a
left kidney supplied by two accessory renal arteries which branched out from
the aorta and had a sinuous course. The
main renal artery (MRA) was seen
entering into the hilum behind the main renal vein(MRV) .
The first accessory renal artery(ARA-1) branched from the left lateral side of the
aorta just above the level of superior mesenteric
artery.
It was running laterally showing a kink almost in the centre
of its course. It entered into the kidney through the anterior substance of the
kidney just above the hilum.
A segmental branch
was seen entering the hilum lying anterior to the main renal vein.
The 2nd accessory renal artery(ARA-2) was seen
arising about 5.7 cms below the origin of superior mesenteric artery(SMA) . It is longer than the 1st accessory
renal artery extending laterally from
the aorta it is seen entering into the left kidney just below the renal pelvis.
A gonadal branch was seen branching out . The left gonadal vein( LGV) is seen
draining into the left renal vein .
The hilum was extending over to the anterior surface of the
kidney and crowding of the vascular structures was seen . However the pelvis
remained most posterior .
Clinical significance
Presence of such twin renal arteries can complicate the
interpretation of renal angiograms and challenge the urologists performing
laparoscopic and renal transplantation procedures
Acknowledgements:
Special thanks to Manisha
, swatika, Atif , kareem and Shahzeb zaman.( MBBS students of 2010-11 batch
Shadan Medical College . Hyderabad . India)
Sunday, 22 April 2012
Tri-lobed left lung
ZOOM IN. PERICARDIUM RT LUNG LEFT LUNG DIAPHRAGM ALSO SEEN
The Thoracic viscera insitu (right lung, pericardium with heart , left lung ) after the removal of anterior thoracic wall .Image shows the placement of forceps in the horizantal fissures bilaterally .
Diaphragm also seen
A pair of forceps is placed both in the horizontal and oblique fissures are seen. Cardiac notch of lung also seen.
Tri lobed left lung with oblique and horizontal fissure dissected out showing oblique and horizotal fissures
TRILOBED LEFT LUNG DUE TO AN ACCESSORY
HORIZONTAL FISSURE
During the dissection, a female cadaver
displayed the left lung with two fissures just as the right lung.
Both the right and left lung were having
the horizontal and oblique fissures at the same level. The horizontal fissures of the left lung
divided the entire lung parenchyma of the upper lobe into two lobes. it was
prominently seen on both costal and mediastinal surfaces. During the development as the lung grows,
the fissures that seprate budding individual bronco pulmonary segments get
obliterated except along two planes which in fully formed lungs persists as
horizontal and oblique fissures. The
accessory fissure could be the result of non-obliteration of spaces which
normally do obliterate. The accessory fissure may be of varying depth
occurring between two broncho pulmonary segments. In the present case it was deep. Radiologically an accessory fissure can be
mistaken for a lung lesion. Most of the
times the accessory fissures act as a barrier to the spread of infection
creating as a sharply marginated pneumonia which could be wrongly interpreted
as consolidation / atelectasis. Thus challenging the radiologists
expertise.
Note:
1.
usually the left lung has only
one deep oblique fissure, spiral in its course dividing it into two lobes. And upper (superior) lobe forming the apex
and the anterior margin of the lung and
the lower (inferior ) lobe forming the diaphragmatic major part of the
posterior surface.
2.
The presence of oblique fissure
in a normal scenario enables the uniform the expansion both the upper and lower
lobes of the left lung.
3.
The fissures act as a reliable
land mark in specifying thoracic and particularly pulmonary lesions
Tuesday, 17 April 2012
Common CAROTID ARTERY WITH “SIPHONHOUS” – S-SHAPED TERMINATION ( WITH DUAL KINKS)
Acknowledgements
Lady professor and HOD- Dr. B.
Bhagyalakshmi M.S ANATOMY
Chairman MAMATA MEDICAL
COLLEGE - Sri Puvvada Ajay Kumar
Common CAROTID
ARTERY WITH “SIPHONHOUS” – S-SHAPED TERMINATION ( WITH DUAL KINKS)
In a male cadaver aged about 60 years the right sided CCA from its origin to the
level of cricoid cartilage is uniform in its diameter and showed the same
diameter as that of the left side. From
the level of cricoid cartilage it has
shown a gradual dilatation and showed a kink with the convexity backwards at
the level of lower part of thyroid cartilage and another kink with the
convexity forwards at the upper margin of the thyroid cartilage at an obtuse
angle about 1 cm above the upper margin thyroid cartilage. It bifurcated in to
the medial terminal branch – EXTERNAL CAROTID ARTERY (ECA) and lateral terminal
branch – INTERNAL CAROTID ARTERY ICA.
The ICA rather than passing straightly upwards had a “ C” shaped curved
course in its proximal course. The ECA and its branches where seen dilated
to lesser extent and were very tortuous in their proximal course and were not
according to the description of any standard text book
CLINICAL SIGNIFICANCE:
According to the neuro surgeons the study of common carotid
artery with regard to its bifurcation angle (position and branching),
tortuosity, vascular geometry vascular aging are of potential importance as
they are risk factors for the
atheromatous plaque formation.
Note:
1. Generally
siphon is used for the intracranial course of ICA by anatomist, radiologist,
neurologist and neuro - surgeons
2. The
vagus nerve and IJV Internal Juglar Vein are dissected off.
3. Initially
the CCA trunk along with its terminal branches was colored RED paint later
removed by using a dissolvent. Hence
some areas are showing reddish colouration.
Common CAROTID
ARTERY WITH “SIPHONHOUS” – S-SHAPED TERMINATION ( WITH DUAL KINKS)
ECA – EXTERNAL CAROTID ARTERY
ICA - INTERNAL
CAROTID ARTERY
M- MANDIBLE
T – THYROID CARTILAGE
Monday, 16 April 2012
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