50 years male with mass epigastrium moving with respiration, associated with vomiting, wt loss for two months
O/E : Left supraclavicular node palpable
Provisional Diagnosis
Ca Stomach
Differential Diagnosis
Ca transverse colon
Ca lt lobe of liver
Ca gall bladder
History
Age 50 years
Sex Male
Duration 02 months
Nausea vomiting
History
Epigastric Discomfort,Dyspepsia
Dysphagia
Wt loss
anorexia and early satiety
Contd:
Haemetemesis
Malena
Altered Bowel habbits
Bleeding P/R
Contd:
Shortness of breath
Juandice
Smoking
Past history
Family history
Physical Findings
GPE
Pallor
Lymph nodes
Lt Supraclavicular (virchow)
Ant Axillary (irish nodes)
Cervical lymph nodes
Contd:
Trousseau,s sign
Thrombophelbitis
Acanthosis Nigricanus
Hyperpigmentation
Abdomen
Mass epigastrium
moves with respiration
hard
non tender
irregular
seperate from liver
succussion splash
Contd:
Periumblical metastasis
Sister Mary Joseph
nodule
Hepatomegaly
Pelvic Masses (Krukenberg tumor)
Ascites
Plueral effusion
Title
DRE
Blumer shelf
Hard nodularity extraluminaly and
anteriorly
also called ,Drop metastasis:
Investigations
Baseline
Goal to assist for optimal therapy
CBC
LFT,s
Stool for occult blood
Diagnostic workup
Upper GI endoscopy
95 % accuracy
Tissue diagnosis
Ulcerated lesion (take 6 biopsies around the
lesion)
Contd:
Double contrast upper GI series
And Barium swallow
75% accuracy
for obstructive lesions only
Staging Investigations
Endoluminal U/S
Accuracy for tumor penetration
involvement of adjacent structures
Lymph nodes involvement
Operater dependent
Contd:
Chest X ray
lung mets
plurel effusion
U/S abdomen
liver mets
Contd:
CT scan Abdomen and Pelvis
loccaly advanced disease
Metastasis
Extra regional lymphadenopathy
PET Scan
To determine sites of unexpected metastasis
Contd:
Staging Laproscopy
To determine possibilty of curitive lesion
look for peritoneal and hepatic mets
Staging
Primary tumor
Tx- cannot be assessed
T0- no evidence
Tis- carcinoma in situ, no invasion of lamina
T1- invades lamina propria or submucosa
T2- invades muscularis or subserosa
T3- penetrates serosa, no adjacent structure
T4- invades adjacent structures
Regional lymph nodes
NX- cannot be assessed
N0- no nodes
N1- mets in 1-6 regional nodes
N2- mets in 7-15 regional nodes
N3- mets in more than 15 regional nodes
Distant Metastasis
MX- cannot be assessed
M0- no distant metastases
M1-distant metastases
Stages
* Stage 0 - Tis, N0, M0
* Stage IA - T1, N0 or N1, M0
* Stage IB - T1, N2, M0 or T2a/b, N0, M0
* Stage II - T1, N2, M0 or T2a/b, N1, M0 or T2, N0, M0
* Stage IIIA - T2a/b, N2, M0 or T3, N1, M0 or T4, N0, M0
* Stage IIIB - T3, N2, M0
* Stage IV - T1-3, N3, M0 or T4, N1-3, M0, or any T, any N, M1
Title
Stage 4
Title
Treatment
Surgery is the only curative treatment for gastric cancer.
It is the best palliation
provides the most accurate staging.
Exceptions
patients who cannot tolerate an abdominal operation, and
patients with overwhelming metastatic disease.
Goal of Treatment
resection of all tumor
all margins (proximal, distal, and radial) should be negative and an adequate lymphadenectomy performed
negative margin of at least 5 cm
Subtotal gastrectomy
standard operation for gastric cancer is radical subtotal gastrectomy
Lower radical partial gastrectomy
carcinoma of the lower third of the stomach.
ligation of the left and right gastric and gastroepiploic arteries at the origin
en bloc removal of the distal 75% of the stomach, including the pylorus and 2 cm of duodenum
the greater and lesser omentum, and all associated lymphatic tissue
Reconstruction
Reconstruction is usually by Billroth II gastrojejunostomy,
if a small gastric remnant is left (<20%), a Roux-en-Y reconstruction is considered.
Esophagogasrectomy
growth involving the cardia and gastroesophageal junction
Upper radical partial gastrectomy
Growths of upper third
Reconstruction
esophagogastrostomy
Pyloroplasty
An isoperistaltic jejunal interposition (Henley loop) between the esophagus and antrum could be considered.
Total Gastrectomy
Survival similar compared with subtotal gastrectomy
Complications higher
Total gastrectomy with jejunal pouch/ esophageal anastomosis may be the best operation for patients with proximal gastric adenocarcinoma ,linitis plastica
Reconstruction
Lymphadenectomy
The extent of resection is described as
D1. Limited Lymphadenectomy. All N1 Nodes removed en bloc with the stomach
D2. Systematic Lymphadenectomy. N1 & N2 nodes en bloc with stomach
D3. Extended Lymphadenectomy. A more radical en bloc resection including N3 nodes
Extent of lymphadenectomy
Two randomized trials compared D1 with D2 lymphadenectomy in patients who were treated for curative intent.
postoperative morbidity (43% versus 25%) and mortality (10% versus 4%) were higher in the D2 group.
Drawback
Recommended
A pancreas and spleen-preserving D2 lymphadenectomy
Carcinoma upper third
Carcinoma middle third
Carcinoma lower third
Post op complications
Early complications
Paralytic ileus.
Leakage from suture line.
Leakage from duodenal stump.
Acute Cholycystitis, Pancreatitis
Stomal obstruction.
Title
Late complications
Early Dumping syndrome
Late dumping syndrome.
Bilious vomiting.
Gastric stump cancer
Vit B12 deficiency
Osteoporosis
Adjuvant Therapy
Rationale behind radiotherapy is to provide additional local-regional tumor control.
Adjuvant chemotherapy is used either as a radiosensitizer or as definitive treatment for presumed systemic metastases.
Adjuvant Radiotherapy
lower rates of local recurrence in patients who received postoperative radiotherapy than in those who underwent surgery alone
(British stomach cancer study group)
Improved survival
(mayo clinic randomized patients)
Intra operative radiotherapy
allows for a high dose to be given in a single fraction while in the operating room so that other critical structures can be avoided.
Stage 3 and 4
Median survival (21 months vs 10 months ) with IORT
Adjuvant Chemotherapy
No consistent survival benefit.
Epirubicin . 5 florouracil ,cis platinium (ECF)
Combination of chemoradio therapy has better outcome
Neo adjuvant chemotherapy
downstaging of disease to increase resectability,
decrease micrometastatic disease burden prior to surgery
allow patient tolerability prior to surgery
determine chemotherapy sensitivity
reduce the rate of local and distant recurrences, and ultimately improve survival.
Palliative Care
radiotherapy provides relief from bleeding, obstruction, and pain in 50-75%
wide local excision, partial gastrectomy, total gastrectomy, simple laparotomy, gastrointestinal anastomosis, and bypass for food intake or pain relief
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