PATHOGNOMONIC SIGNS Flashcards
Cobble stone appearance
a. Palatal Papillary Hyperplasia / Palatal Papillomatosis
b. Epulis Fissuratum
c. Traumatic/ Irritation Fibroma
d. Generalized gingival hyperplasia
e. Peripheral Giant Cell Granuloma
f. Pyogenic Granuloma
a. Palatal Papillary Hyperplasia / Palatal Papillomatosis
Saw tooth rete pegs
a. Papilloma
b. White Sponge Nevus
c. Lichen Planus
d. Hairy Leukoplakia
c. Lichen Planus
Cauliflower-like; mostly caused by HPV
a. Papilloma
b. White Sponge Nevus
c. Lichen Planus
d. Hairy Leukoplakia
a. Papilloma
Major form: Steven Johnson’s syndrome
Target lesions/ iris lesions/ bull’s eye lesions
a. Erythroplakia
b. Erythema multiforme
c. Hemangioma
d. Telangiectasis
b. Erythema multiforme
Spider web veins
a. Erythroplakia
b. Erythema multiforme
c. Hemangioma
d. Telangiectasis
d. Telangiectasis
punched out lesions on interdental papillae
a. ANUG/ Vincent’s Angina/ Trench Mouth
b. Desquamative gingivitis
c. Angular cheilitis
d. Telangiectasis
a. ANUG/ Vincent’s Angina/ Trench Mouth
café au lait macules, Crowe’s sign, Lisch spots
a. Albright’s syndrome
b. Von Reckling hausen
c. Addison’s Disease
d. Melanoplakia/ Melanoma
b. Von Reckling hausen
Rushton bodies, cholesterol crystals
a. Radicular Cyst
b. Residual Cyst
c. Paradental Cyst/ Buccal Bifurcation Cyst
d. Primordial Cyst
a. Radicular Cyst
Tear-drop shaped, Between mandibular Canine and Premolar area, tooth vital
a. Lateral Periodontal Cyst
b. Bohn’s nodule
c. Odontogenic Keratocyst
d. Dentigerous Cyst
a. Lateral Periodontal Cyst
Pallisading, picket fence, tomb stone appearance
a. Lateral Periodontal Cyst
b. Bohn’s nodule
c. Odontogenic Keratocyst
d. Dentigerous Cyst
c. Odontogenic Keratocyst
Ghost cells (lack nuclei)
a. Nevoid Basal Cell Carcinoma Syndrome/ Gorlin Gotz Syndrome
b. Dentigerous Cyst
c. Eruption Cyst
d. Calcifying Odontogenic Cyst
d. Calcifying Odontogenic Cyst
Onion skin appearance
a. Acute Osteomyelitis
b. Garre’s/ Periostitis Ossificans
c. Acute Alveolar Ostitis
b. Garre’s/ Periostitis Ossificans
Bluish, “Frog’s Belly” , true retention cyst
a. Sialolithiasis
b. Mucocele
c. Ranula
d. Pleiomorphic Adenoma
c. Ranula
Tzanck cells (ballooned cells) with Lipschutz bodies (eosinophilic bodies)
a. Herpetic Gingivostomatitis
b. Varicella
c. Rubeola (Measles)
d. Rubella (German Measles)
a. Herpetic Gingivostomatitis
Kopliks spots on buccal mucosa
a. Herpetic Gingivostomatitis
b. Varicella
c. Rubeola (Measles)
d. Rubella (German Measles)
c. Rubeola (Measles)
Forchheimer spots on soft palate
a. Herpetic Gingivostomatitis
b. Varicella
c. Rubeola (Measles)
d. Rubella (German Measles)
d. Rubella (German Measles)
Sulfur granules
a. Actinomycosis
b. Syphilis
c. Congenital Syphilis
d. Candidiasis
a. Actinomycosis
Auspitz sign, Monroe abscess, silvery scale
a. Psoriasis
b. Steven Johnson Syndrome
c. Pemphigus
b. Pemphigoid
a. Psoriasis
Chickenwire appearance, positive Nikolsky sign (slight rubbing of skin may cause exfoliation of outer surface)
a. Psoriasis
b. Steven Johnson Syndrome
c. Pemphigus
b. Pemphigoid
c. Pemphigus
Ashboe Hansen sign (Bulla spread sign)
a. Psoriasis
b. Steven Johnson Syndrome
c. Pemphigus
b. Pemphigoid
b. Pemphigoid
Butterfly rash
a. Lupus Erythematosus
b. Melkerson-Rosenthal Syndrome
c. Recurrent Aphthous ulcers
d. Reiter’s syndrome
a. Lupus Erythematosus
Radiographic Appearance: Cotton wool appearance
Histology: Mosaic pattern
a. Paget’s Disease/ Osteitis Deformans
b. Gardner’s Syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
d. Hypoparathyroidism
e. Cushing’s syndrome
a. Paget’s Disease/ Osteitis Deformans
Multiple osteoma and cotton wool appearance
a. Paget’s Disease/ Osteitis Deformans
b. Gardner’s Syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
d. Hypoparathyroidism
e. Cushing’s syndrome
b. Gardner’s Syndrome
“Stone, Bone, Groan, Moan”= kidney, bone, GI tract & nervous system are affected; Brown tumor
a. Paget’s Disease/ Osteitis Deformans
b. Gardner’s Syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
d. Hypoparathyroidism
e. Cushing’s syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
Chvostek sign; Trousseau’s sign
a. Paget’s Disease/ Osteitis Deformans
b. Gardner’s Syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
d. Hypoparathyroidism
e. Cushing’s syndrome
d. Hypoparathyroidism
Moon face, buffalo hump
a. Paget’s Disease/ Osteitis Deformans
b. Gardner’s Syndrome
c. Hyperparathyroidism/Osteitis Fibrosa Cystosa
d. Hypoparathyroidism
e. Cushing’s syndrome
e. Cushing’s syndrome
Birbeck granules
a. Eosinophilic granuloma
b. Hand-Schuller Christian
c. Letterer-Siwe
b. Hand-Schuller Christian
soap bubble appearance
a. Ameloblastoma
b. CEOT/ Pindborg tumor
c. Compound Odontoma
d. Osteosarcoma
a. Ameloblastoma
Amyloid deposits that calcify to Liesegang rings;
a. Ameloblastoma
b. CEOT/ Pindborg tumor
c. Compound Odontoma
d. Osteosarcoma
b. CEOT/ Pindborg tumor
Sunburst appearance,
a. Ameloblastoma
b. CEOT/ Pindborg tumor
c. Compound Odontoma
d. Osteosarcoma
d. Osteosarcoma
Round cell malignancy, moth-eaten destruction
a. Ewing’s sarcoma
b. Odontogenic Myxoma
c. Hodgkin’s lymphoma
b. Burkitt’s lymphoma
a. Ewing’s sarcoma
honeycomb pattern
a. Ewing’s sarcoma
b. Odontogenic Myxoma
c. Hodgkin’s lymphoma
b. Burkitt’s lymphoma
b. Odontogenic Myxoma
Reed-Sternberg/ Owl’s eyes cells;
a. Ewing’s sarcoma
b. Odontogenic Myxoma
c. Hodgkin’s lymphoma
b. Burkitt’s lymphoma
c. Hodgkin’s lymphoma
starry sky effect
a. Ewing’s sarcoma
b. Odontogenic Myxoma
c. Hodgkin’s lymphoma
b. Burkitt’s lymphoma
b. Burkitt’s lymphoma
Bence Jones Proteinuria; Punched-out radiographic appearance
a. Multiple Myeloma
b. Schwannoma/ Neurilemomma
c. Lipoma
d. Kaposi’s sarcoma
a. Multiple Myeloma
Verocay body, palisaded pattern
a. Multiple Myeloma
b. Schwannoma/ Neurilemomma
c. Lipoma
d. Kaposi’s sarcoma
b. Schwannoma/ Neurilemomma
perivascular collagen cuffing; soap-bubble radiolucency
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
a. Cherubism
Marble Bone Disease
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
b. Osteopetrosis/ AlbersSchonberg Disease
Brittle Bone Disease
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
c. Osteogenesis imperfecta
Ground glass or orange peel appearance
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
d. Fibrous Dysplasia
Frog face;
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
e. Crouzon’s/ Craniofacial dysostosis
cigarette’s paper scar formation, Gorlin’s sign
a. Cherubism
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
e. Crouzon’s/ Craniofacial dysostosis
f. Ehlers Danlos syndrome
f. Ehlers Danlos syndrome
barrel chest;
a. Cystic fibrosis
b. Osteopetrosis/ AlbersSchonberg Disease
c. Osteogenesis imperfecta
d. Fibrous Dysplasia
a. Cystic fibrosis
Wickham’s striae
a. Reticular
b. Hypertrophic
c. Atrophic
d. Erosive
e. Bullous
a. Reticular
