patho lab final

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Last updated 10:02 AM on 5/2/26
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1
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<p>A 19 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. A radiograph taken. Provide Differential diagnosis</p>

A 19 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. A radiograph taken. Provide Differential diagnosis

Dentigerous cyst
OKC

2
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<p>name and identify</p>

name and identify

OKC
a- parakeratinized lining epithelium
b- tombstone appearance of basal cells
c- connective tissue capsule

3
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<p>A 35 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. Radiographic and histologic images are shown below</p>

A 35 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. Radiographic and histologic images are shown below

OKC

4
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<p>A 35 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. Radiographic and histologic images are shown below</p>

A 35 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over left third molar region. Radiographic and histologic images are shown below

OKC
a- separation of epithelium from connective tissue
b- parakeratinized stratified squamous epithelium
c- connective tissue capsule

5
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<p>A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right third molar region. A radiograph taken. Provide Differential diagnosis and justify</p>

A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right third molar region. A radiograph taken. Provide Differential diagnosis and justify

OKC
Ameloblastoma
Multilocular radiolucency

6
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term image

OKC
a- palisading row of basal layer
b- parakeratinized stratified squamous epithelium with corrugated surface
c- connective tissue capsule

7
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<p>A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right molar region. A radiograph taken. Provide diagnosis and justify</p>

A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right molar region. A radiograph taken. Provide diagnosis and justify

Orthokeratinised odontgenic cyst

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Orthokeratinised odontgenic cyst

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OOC

a- orthokeratinized stratified squamous epithelium
b- cuboidal basal cell layer
c- connective tissue capsule

10
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<p>A 55 year old patient present with mild swelling of upper jaw. A biopsy was taken and the image is provided below.</p>

A 55 year old patient present with mild swelling of upper jaw. A biopsy was taken and the image is provided below.

OKC (Inflamed towards one side)

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OKC
-lining epithelium

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OKC
- daughter cyst

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OKC
- basal cell budding

14
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OKC
- odontogenic epithelial rests

15
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<p>A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right third molar region. A radiograph taken. Provide Differential diagnosis</p>

A 25 year old patient present with mild swelling of lower jaw. Intra orally a small swelling was visible over right third molar region. A radiograph taken. Provide Differential diagnosis

Dentigerous cyst
OKC

16
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<p>A 12 year old with cyst of jaw</p>

A 12 year old with cyst of jaw

Dentigerous cyst
a- Non keratinized stratified squamous Epithelial lining (2-3 layer thickness)
b- connective tissue capsule

17
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Marsupialization and the cyst have shrunken

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Marsupialization and the cyst have shrunken

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Dentigerous cyst
a- Non keratinized stratified squamous Epithelial lining (2-3 layer thickness)
b- Connective tissue capsule

20
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<p>A 25 year old patient present with mild swelling of front jaw. Intra orally a small swelling was visible and 23 was missing. A radiograph taken. Provide Differential diagnosis</p>

A 25 year old patient present with mild swelling of front jaw. Intra orally a small swelling was visible and 23 was missing. A radiograph taken. Provide Differential diagnosis

Dentigerous cyst
Adenomatoid
odontogenic tumor

21
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<p>A swelling of palate for 3 years duration showing progressive enlargement. Provide DD. Justify your DD</p>

A swelling of palate for 3 years duration showing progressive enlargement. Provide DD. Justify your DD

OKC
Ameloblastoma
Multilocular appearnace

22
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Gorlin - Goltz Syndrome
- bifid ribs

23
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Gorlin Goltz syndrome
Multiple radiolucencies in jaw suggestive of OKC

24
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<p>Complain of missing teeth in 5 year old boy. Provide DD</p>

Complain of missing teeth in 5 year old boy. Provide DD

Dentigerous cyst
Adenomatoid odontogenic tumor

25
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term image

Dentigerous cyst
Adenomatoid odontogenic tumor

26
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<p>The mother of a 2 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis</p>

The mother of a 2 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis

Epstein pearls

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<p>The mother of a 1 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis</p>

The mother of a 1 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis

Bohn nodules

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<p>A full term newborn boy, weighing 3 kg, born out of an uncomplicated pregnancy, was brought to us for evaluation of a few small, white and round bumps on the gingival surface. Examination of the oral cavity showed multiple, firm, pearly-white papules measuring 2 to 4 mm in diameter, grouped over the vestibular aspect of the alveolar ridge of the maxillary arch</p>

A full term newborn boy, weighing 3 kg, born out of an uncomplicated pregnancy, was brought to us for evaluation of a few small, white and round bumps on the gingival surface. Examination of the oral cavity showed multiple, firm, pearly-white papules measuring 2 to 4 mm in diameter, grouped over the vestibular aspect of the alveolar ridge of the maxillary arch

Bohn nodules

29
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<p>The mother of a 1 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis and managent</p>

The mother of a 1 month old baby has a concern of white nodules in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis and managent

Bohn nodules
No treatment

30
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<p>The mother of a 1 month old baby has a concern of a bubble in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis and synonym</p>

The mother of a 1 month old baby has a concern of a bubble in the mouth of her kid. The clinical image is shown below. There is no pain or any other symptoms. Provide diagnosis and synonym

Gingival cyst of newborn/infant
Dental lamina cyst of infants

31
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<p>Spot the cyst and provide diagnosis</p>

Spot the cyst and provide diagnosis

Gingival cyst of newborn/infant
Dental lamina cyst of infants

32
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<p>12-year old male patient, which presented as a swelling involving the gingiva in the region of 11 of 5 year duration</p>

12-year old male patient, which presented as a swelling involving the gingiva in the region of 11 of 5 year duration

Eruption cyst

33
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<p>7-year old male patient, which presented as a swelling involving the gingiva overlying the crown of 21</p>

7-year old male patient, which presented as a swelling involving the gingiva overlying the crown of 21

Eruption cyst

34
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<p>A 30 year old female presented with complaint of swelling in the lower jaw. Intraorally a swelling was not over the left vestibule spanning over 43 to 35. Provide differential diagnosis.</p>

A 30 year old female presented with complaint of swelling in the lower jaw. Intraorally a swelling was not over the left vestibule spanning over 43 to 35. Provide differential diagnosis.

Calcifying odontogenic cyst
Calcifying epithelial odontogenic tumor

35
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calcifying odontogenic cyst
a- ghost cells
b- odontogenic epithelial lining with stellate reticulum like cells
c- ameloblasts like basal cells

36
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Calcifying odontogenic cyst

37
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<p>A 17-year-old patient referred by his orthodontist following the fortuitous discovery of a mixed radiolucent/radiopaque image in the right jaw. Provide DD</p>

A 17-year-old patient referred by his orthodontist following the fortuitous discovery of a mixed radiolucent/radiopaque image in the right jaw. Provide DD

Calcifying odontogenic cyst
Calcifying epithelial odontogenic tumor

38
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Calcifying odontogenic cyst
Calcifying epithelial odontogenic tumor

39
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Calcifying odontogenic cyst

40
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<p>A 51-year-old male patient presented with a well-delimited, radiolucent, mandibular lesion, located between the roots of the right lower lateral incisor and canine and evidenced during routine radiographic examination. Provide 2 differential diagnosis</p>

A 51-year-old male patient presented with a well-delimited, radiolucent, mandibular lesion, located between the roots of the right lower lateral incisor and canine and evidenced during routine radiographic examination. Provide 2 differential diagnosis

Lateral periodontal cyst
OKC

41
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Lateral periodontal cyst

42
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<p>A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis</p>

A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis

Lateral periodontal cyst
OKC

43
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<p>A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis</p>

A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis

Lateral periodontal cyst
OKC

44
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<p>A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis</p>

A 43-year-old male patient with a complaint of painless swelling in the left mandibular premolar region. Although the history revealed a presence of the swelling for more than one year without any associated symptoms, the patient preferred to obtain clinical consultation as he was concerned about the swelling. The patient had no previous history of dental treatment except for periodic oral prophylaxis. Provide two differential diagnosis

Lateral periodontal cyst
OKC

45
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<p>Provide two differential diagnosis</p>

Provide two differential diagnosis

Lateral periodontal cyst
OKC

46
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<p>Provide two differential diagnosis</p>

Provide two differential diagnosis

Lateral periodontal cyst
OKC

47
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Lateral periodontal cyst

48
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<p>Provide 1 provisional diagnosis</p>

Provide 1 provisional diagnosis

Botroid odontogenic cyst

49
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Botroid odontogenic cyst

50
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Botroid odontogenic cyst

51
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Botroid odontogenic cyst

52
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Botroid odontogenic cyst

53
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<p>A 35-year-old woman presented with the chief complain of asymptomatic swelling in the lower front region of jaw since 4 months. On clinical examination, hard swelling was present on body of mandible in relation to 33 to 43, obliterating the buccal vestibule and measuring about 1.5 cm in diameter. On palpation, the lesion was nontender, with no discharge, and the overlying mucosa was normal. Provide DD</p>

A 35-year-old woman presented with the chief complain of asymptomatic swelling in the lower front region of jaw since 4 months. On clinical examination, hard swelling was present on body of mandible in relation to 33 to 43, obliterating the buccal vestibule and measuring about 1.5 cm in diameter. On palpation, the lesion was nontender, with no discharge, and the overlying mucosa was normal. Provide DD

OKC
Glandular odontogenic cyst
Odontogenic tumor

54
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<p>A cyst of jaw</p>

A cyst of jaw

Glandular odontogenic cyst

55
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glandular odontogenic cyst
- mucous cell/goblet cell

56
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glandular odontogenic cyst
- microcyst

57
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glandular odontogenic cyst
- cilia

58
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glandular odontogenic cyst

59
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glandular odontogenic cyst
- clear cells

60
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glandular odontogenic cyst

61
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<p>Clinical presentation of cysts and tumors of jaw</p>

Clinical presentation of cysts and tumors of jaw

Buccal expansion

62
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<p>Clinical presentation of cysts and tumors of jaw</p>

Clinical presentation of cysts and tumors of jaw

Lingual expansion

63
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buccal expansion

64
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palatal expansion

65
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<p>32 year old male patient with complaint of swelling in midline of palate of 3 months duration. There is no pain or any other symptoms. Provide differential diagnosis and justify</p>

32 year old male patient with complaint of swelling in midline of palate of 3 months duration. There is no pain or any other symptoms. Provide differential diagnosis and justify

Periapical cyst
ncisive canal cyst

66
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<p>62 year old male patient with complaint of swelling in midline of palate. Provide differential diagnosis and justify</p>

62 year old male patient with complaint of swelling in midline of palate. Provide differential diagnosis and justify

Incisive canal cyst
OKC

67
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<p>A 23 year old presenting with a cystic swelling in midline in the anterior region of palate. Provide differential diagnosis</p>

A 23 year old presenting with a cystic swelling in midline in the anterior region of palate. Provide differential diagnosis

Incisive canal cyst
OKC

68
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<p>A 52 year old presenting with a cystic swelling in midline in the anterior region of palate. Provide differential diagnosis</p>

A 52 year old presenting with a cystic swelling in midline in the anterior region of palate. Provide differential diagnosis

Periapical cyst
Incisive canal cyst

69
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Incisive canal cyst
a- pseudostratified ciliated columnar epithelium
b- goblet cells/ mucous cells

70
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<p>A 31 year old presenting with a cystic swelling in lateral aspect between lateral incisors and canine. Provide differential diagnosis</p>

A 31 year old presenting with a cystic swelling in lateral aspect between lateral incisors and canine. Provide differential diagnosis

OKC
Lateral periodontal cyst

71
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<p>A 31 year old presenting with a cystic swelling in lateral aspect between lateral incisors and canine. Provide differential diagnosis</p>

A 31 year old presenting with a cystic swelling in lateral aspect between lateral incisors and canine. Provide differential diagnosis

OKC
Lateral periodontal cyst

72
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<p>A 45 year old presented with a cystic swelling in midline of the neck. Provide DD</p>

A 45 year old presented with a cystic swelling in midline of the neck. Provide DD

Thyroglossal duct cyst
Dermoid/epidermoid cyst

73
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<p>A 35 year presented with cystic swelling on lateral part of forehead of 2 cm diameter. Provide DD</p>

A 35 year presented with cystic swelling on lateral part of forehead of 2 cm diameter. Provide DD

Dermoid cyst
Epidermoid cyst

74
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<p>A 35 year presented with cystic swelling on lateral part of forehead of 2 cm diameter. The microscopic image is shown below.</p>

A 35 year presented with cystic swelling on lateral part of forehead of 2 cm diameter. The microscopic image is shown below.

Dermoid cyst

75
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<p>A 35 year presented with cystic swelling on left side of the neck of 2 cm diameter. Provide DD</p>

A 35 year presented with cystic swelling on left side of the neck of 2 cm diameter. Provide DD

Dermoid cyst
Epidermoid cyst

76
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epidermoid cyst
a- keratin
b- orthokeratinized stratified squamous epithelium

77
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<p>Accidental finding, no expansion of bone</p>

Accidental finding, no expansion of bone

OKC
Solitary bone cyst

78
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solitary bone cyst
a- bone
b- cavity without lining epithelium

79
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<p>A 20 year old boy presented with swelling of the lower face. Provide DD</p>

A 20 year old boy presented with swelling of the lower face. Provide DD

OKC
Ameloblastoma
Aneurysmal Bone Cyst

80
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<p>A 9 year old boy presented with swelling of the lower face. Provide DD</p>

A 9 year old boy presented with swelling of the lower face. Provide DD

OKC Ameloblastoma Aneurysmal Bone Cyst

81
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Aneurysmal Bone Cyst
a- blood filled sinuses/spaces
b- giant cells

82
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<p>A 18 year old boy presented with cystic swelling of mandible. Provide DD and justify</p>

A 18 year old boy presented with cystic swelling of mandible. Provide DD and justify

Aneurysmal bone cyst
Ameloblastoma

83
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Aneurysmal Bone Cyst
a- blood filled sinuses/spaces
b- giant cells

84
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<p>An 18-year-old woman presented with unilateral rhinorrhea for past 2 months. She had a history of road accident 12 months ago. Provide DD</p>

An 18-year-old woman presented with unilateral rhinorrhea for past 2 months. She had a history of road accident 12 months ago. Provide DD

Surgical cyst of maxillary antrum
Mucosal cyst

85
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<p>A 42-year-old woman came complaining of intermittent stinging pain in her right cheek. There were no clinically abnormal findings in physical and oral examinations. Radiograph showed a cystic swelling in maxillary antrum. The patient only had a history of orthognathic surgery on both the maxilla and the mandible performed about 21 years prior to this visit</p>

A 42-year-old woman came complaining of intermittent stinging pain in her right cheek. There were no clinically abnormal findings in physical and oral examinations. Radiograph showed a cystic swelling in maxillary antrum. The patient only had a history of orthognathic surgery on both the maxilla and the mandible performed about 21 years prior to this visit

Surgical cyst of maxillary antrum

86
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<p>A 42-year-old woman came complaining of intermittent stinging pain in her right cheek. There were no clinically abnormal findings in physical and oral examinations. Radiograph showed a cystic swelling in maxillary antrum. The patient only had a history of orthognathic surgery on both the maxilla and the mandible performed about 21 years prior to this visit</p>

A 42-year-old woman came complaining of intermittent stinging pain in her right cheek. There were no clinically abnormal findings in physical and oral examinations. Radiograph showed a cystic swelling in maxillary antrum. The patient only had a history of orthognathic surgery on both the maxilla and the mandible performed about 21 years prior to this visit

Surgical cyst of maxillary antrum