Different diseases with similar features

Question 1

Intraepithelial bulla

Answer 1

perpes simplex . Herpes zoster .Chicken pox .Pemphigus .Familiat benign pemphigus (btley-Hailey disease) Epidermolysis bullosa- dystrophic recessive form Oral lesions of erythema multiformae

Question 2

Subepithelial bulla

Answer 2

Skin lesions of erythema multiformaeDermatitis herpetiformis Bullous pemphigoid Bullous lichenplanus Epidermolysis buliosa Pemphigoid

Question 3

Both intraepithetial & subepithelial

Answer 3

.Eythema multiforme Epidermolysis bullosa faraneoplastic pemphigus

Question 4

Tzank cells are seen in

Answer 4

Herpes .Pemphigus

Question 5

Multinucleated giant cells are seen in

Answer 5

Cherubism . Hyperparathyroidism . Aneurysmal bone cyst Giant cell granulomas Osteoclastoma Osteosarcoma . Herpes
Leprosy (langerhans glant cells) * Eosinophiic granuloms

Question 6

Psertasis ferm of lesions with Monto’s abscess are seen in

Answer 6

Benign migratory glossitis Psorasis . Reite’s syndrome (Micro-abscess. formation is also seen in Vitamin A deficiency)

Question 7

Ghost cells are seen in

Answer 7

Odontoma Graniophanmgioma Ameloblastic fibroodontoma . Calcifying epithelial odontogenic cyst

Question 8

Bence Jones protein is diagnostic of

Answer 8

Mutiple myeloma (important feature) Polycythemia vera Leukemia . Solitary myeloma

Question 9

Blue sclera are seen in

Answer 9

Osteogenesis imperfecta Marfan’s syndrome Cherubism Ehlers-Danlos syndrome Osteopetrosis . Fetal rickets

Question 10

Abnormal dentino-enamel junction is seen in

Answer 10

Dentinogenesis imperfecta * Ehlers-Danlos syndrome

Question 11

Rushton bodies are seen in

Answer 11

Periapical cyst Dentigerous cyst Neonatal cyst

Question 12

Nikolsky’s sign is seen in

Answer 12

Pemphigus Familial benign chronic pemphigus * Epidermolysis bullosa (dystrophic recessive)

Question 13

Pseudoeptthellomatous hyperplasla is seen in

Answer 13

Granular cell myoblastoma Blastomycosis . Papillary hyperplasia DLE Necrotizing sialometaplasia (NS) * keratoacanthoma

Question 14

Sunray or sunburst appearance is seen in

Answer 14

Osteogenic sarcoma Central hemangioma * Ewing’s sarcoma

Question 15

Onion peel appearance is seen in

Answer 15

Ewing’s sarcoma * Garre’s osteomyelitis . Caffey’s disease

Question 16

Crew-cut or Hair-on-end appearance is seen in

Answer 16

Thalassemia * Sickle cell anemia

Question 17

Ground glass appearance is seen in

Answer 17

Primary hyperparathyroidism Monostotic fibrous dysplasia Cherubism

Question 18

Widening of periodontal ligament is seen in

Answer 18

Osteosarcoma * Scleroderma * Trauma from occlusion

Question 19

Hypercementosis is seen in

Answer 19

Pagets disease Hyperpituitarism (Gigantism)

Question 20

Obliteration of periodontal ligament space is seen in

Answer 20

Hypercementosis . Ankylosis . Hypofunction of teeth . Paget’s disease

Question 21

Cotton wool appearance is seen in

Answer 21

Pagets disease (Osteitis deformans) Chronic sclerosing diffuse osteomyelitis Fibrous dysplasia . Cemento-osseous dysplasia

Question 22

Multiple unerupted teeth are seen in

Answer 22

Dentin dysplasia Cleidocranial dysplasia Hypothyroidism Cherubism

Question 23

Cafe-au-lait pigmentation is seen

Answer 23

Neurofibroma Peutz-Jegher’s syndrome Polyostotic fibrous dysplasia . . Hypothyroidism

Question 24

Periosteal new bone formation is seen in

Answer 24

Garre’s osteomyelitis * Hypervitaminosis A . Caffey’s disease or infantile cortical hypero: . Syphilis . Leukemia . Ewing’s sarcoma

Question 25

Centrifugal growth pattern of bone tumour is seen in

Answer 25

Central cementifying fibroma * Central ossifying fibroma * Central cemento ossifying fibroma

Question 26

Hyper mobility of joints is seen in

Answer 26

Ehlers Danlos syndrome . Marfan’s syndrome * Osteogenesis imperfecta . Downs syndrome (Note:- Hypo mobility of joints is seen in Achondroplasia)

Question 27

Palmar-Plantar keratosis is seen in

Answer 27

Gorlin-Goltz syndrome . Papillon-Lefevre syndrome ◦ Follicularis keratosis

Question 28

Russell bodies is seen in

Answer 28

Plasma cells in multiple myeloma Periapical granuloma