Sublingual Melanoma (Pod med)

Question 1

What are the differential diagnosis for longitudinal melanochyia?

1. A
2. B
3. C
4. D
5. E

Answer 1

A: Melanotic macula of the nail unit

B: Nail matrix nevus

C: Onychomycosis

D: Subungual Hematoma

E: Subungual Melanoma

Question 2

What are the ABCDEF for subungual malenoma?

A: peak incidence?

B: breadth greater than?

C:

D:

E:

F:

Answer 2

A: Age: Peak incidence: 5th to 7th decade of life,

African-American > Native American > Asian

B: Brown-Black band with breadth greater than 3mm

Border irregular/blurred

C: Change in nail band morpology despite tx

D: Digit involved Thumb> Hallux>index finger > multiple digits dominant hand

E: Extension of the the brown-black pigment of the nail bed, nail matrix and/or nail plate onto the adjacant cuticle or proximal and lateral nail folds

F: Family or personal history

Question 3

What are some local and regional causes of melanonychia?

1. ?
2. ?
3. ?
4. ?

Answer 3

1. Trauma (acute or chronic): Multiple bands
2. Poor fitting shoes
3. Radiation therapy
4. Ultraviolet light

Question 4

What are some of the systemic causes of melannychia?

1. ?
2. ?
3. ?
4. ?
5. ?

Answer 4

1. Addison Disease
2. Cushing Syndrome
3. Hyperthyroidism
4. Acquired immunodificiency syndrome
5. Malnutrition/ Vitamin B deficincy