Case #1:
31 year old male presented with this decayed tooth #4 and:
A 0.4 cm, ill-defined periapical radiolucency involving tooth
#4.
A reasonable radiographic differential Dx:
Case #2:
74 year old retired farmer with:
Generalized red and white atrophic lower lip with an ill defined
vermilion border and two brown crusted fissures.
A reasonable clinical differential Dx:
Case #3:
58 year old man with:
A 7 x 5 x 2 cm mass in the left submandibular region covered by
normal colored skin.
A reasonable clinical differential Dx:
Case #4:
This 32 year old woman has:
A 2.5 x 2.0 cm well-circumscribed radiolucency at the apex of
endodontically treated tooth #9.
A reasonable radiographic differential Dx:
(Actual diagnosis was periapical actinomyces)
Case #5:
This 45 year old woman has:
A brown velvety ill-defined plaque involving the entire axillary
region.
A reasonable clinical differential Dx:
(This was a case of acanthosis nigricans. Some of these cases are cutaneous markers for internal malignancy such as gastric carcinoma)
Case #6:
This 28 year old black female has:
A 4 x 4 x 2 cm normal colored mass of the left hard palate that
crosses the midline.
A reasonable clinical differential Dx:
(This was a case of adenoid cystic carcinoma. Salivary gland
neoplasm should always be high on your differential diagnosis
when you have a palatal soft tissue mass.)
Last updated September 23, 2000 by Tom Maier. Please send comments, questions, and reports of problems to maiert@ohsu.edu