Most common Ch.16-19 Flashcards

1
Q

Most common cause of tooth loss before the age of 35

A

Dental caries (tooth decay)

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2
Q

Most common fungal infection of the oral cavity

A

Oral candidiasis (thrush)

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3
Q

Most common odontogenic tumor

A

Odontoma

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4
Q

Most common viral sialadenitis

A

Mumps

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5
Q

Most common type of inflammatory salivary gland lesion

A

Mucocele

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6
Q

Most aggressive of all salivary gland malignant neoplasms

A

Carcinoma ex pleomorphic adenoma

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7
Q

Most common primary malignant salivary tumor

A

Mucoepidermoid carcinoma

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8
Q

Most common form of congenital intestinal atresia

A

Imperforate anus

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9
Q

Most common true diverticulum

A

Meckel diverticulum

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10
Q

Most common cause of GERD

A

Reflux esophagitis

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11
Q

Most common cause of esophagitis

A

Reflux esophagitis

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12
Q

Most common outpatient GI diagnosis

A

Reflux esophagitis

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13
Q

Most common cause of chronic gastritis

A

Helicobacter pylori

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14
Q

Most common cause of diffuse atrophic gastritis

A

Autoimmune

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15
Q

Peptic ulcers are most common in the

A

Proximal duodenum

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16
Q

Most common polyp

A

Hyperplastic (inflammatory) polyp

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17
Q

Most common malignancy of the stomach

A

Gastric adenocarcinoma

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18
Q

Gastric adenocarcinoma are mostly found in

A

Antrum

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19
Q

Most common site of extranodal lymphoma

20
Q

Most common site of EBV + B cell lymphoproliferations in allogenic hematopoietic stem cells and organ transplant receipents

21
Q

Most common mesenchymal tumor of the abdomen

A

Gastrointestinal stromal tumor (GIST)

22
Q

Most frequent cause of intestinal obstruction world wide

23
Q

Most common cause of obstruction in the USA

24
Q

Most common cause of intestinal obstruction in children <2 y.o

A

Intussusception

25
Most common acquired GI emergency of neonates
Necrotizing enterocolitis (NEC)
26
Most common bacterial enteric pathogen in developed countries
Campylobacter enterocolitis
27
Most common cause of bloody diarrhea world wide
Shigella
28
Most common cause of acute gastroenteritis requiring medical attention
Norovirus
29
Most common cause of severe childhood diarrhea and diarrheal mortality world wide
Rotavirus
30
Most common parasitic pathogen in human and spread fecally contaminated water or food
Giardia lamblia
31
Most common of all polyps
Neoplastic adenoma
32
Most common syndromic form of colon cancer
Hereditary nonpolyposis colorectal cancer
33
Most common malignancy of GI tract
Colonic adenocarcinoma
34
Most common tumor of appendix
Carcinoid tumor
35
Most common cause of portal HTN
Cirrhosis intrahepatic
36
Most common cause of acute liver failure necessitating liver transplant in USA
Acetaminophin toxicity
37
Most common cause of chronic liver disease in USA
NAFLD
38
Most common cause of neonatal cholestasis and death from liver disease in early childhood
Biliary atresia
39
Most common cause of jaundice in pregnancy
Viral hepatitis
40
Most common benign liver tumor
Cavernous hemangiomas
41
Most common liver tumor of early childhood
Hepatoblastoma
42
Most common primary malignancy of hepatocytes
Hepatocellualr carcinoma (HCC)
43
Most common congenital anomaly of gallbladder
Phrygian cap | -fundus that is folded inwards
44
Most common malignancy of the extrahepatic biliary tract
Carcinoma of the gallbladder
45
Most common congenital anomaly of the pancreas
Pancreas divisum
46
Most common cuase of chronic pancreatitis
Long term alcohol abuse
47
Most common pancreatic cyst
Pseudocysts