Screening older patients Flashcards
Dermoscopy of lesion on scalp (hair loss)
Flat lesion
Multiple colors
Areas of regression
Lentigo maligna on scalp: location
Mainly on vertex
Superficial spreading melanoma on scalp: Location
Frontal and temporal areas
Percentage of melanoma on the scalp that is lentigo maligna:
80%
Superficial spreading melanoma on scalp characterized by:
Bluish-white veil with obliteration of the follicles.
Lentigo maligna on scalp: Characterized by
Pseudonetwork, rhomboidal structures, bluish/gray color, irregular hair follicles, annular granular pattern.
Distribution of nevi on the body
Dermal globular nevi on the head and neck
Dermal and compound nevi with a complex pattern on the trunk
Junctional nevi on the legs
Melanoma with peripheral globules has a ——– growth rate than reticular lesions.
Faster
Atypical lentiginous junctional melanocytic nevus in the elderly
Clinical scenario, elderly patient, sun damaged skin, very few moles
Located on the arms or the trunk of an elderly patient, upper back or shoulders.
Initially thought to be a nevus.
Now considered to be a melanoma in situ.
They are solitary
Multiple colors
Atypical network
Regression
Asymmetry in terms of size and shape
Nested melanoma in elderly
Lesion is typified by the presence of globules
Chaotic
Differential diagnosis of flat melanocytic lesion on the face never includes
Melanocytic nevus
Compared to other nonmelanoma nodular tumors, nodular melanomas are characterized by
Light brown coloration
Irregular brown dots and globules
Dot vessels
Serpentine vessels
Whitish shiny streaks
Irregular blue structureless areas
Blue/black color
Merkel cell carcinoma
Asymptomatic red nodule
head and neck and extremities
in elderly patients
Fast-growing
White streaks, pinkish background and irregular vessels
Merkel cell carcinoma: Distant metastases at diagnosis
20 to 75%
In elderly patients excise any lesion with
Peripheral nodules or EGF
