Posted by admin On June - 17 - 2010
In a 43-year-old man, on the back (years of evolution)
What to see at dermoscopy:
-erythema
-giant comedo-like openings (circle)
-giant milia-like cysts
-scaly surface
Dermoscopy in favor of Darier´s disease and histopathology confirmed the diagnosis.
Comments:variable vascular structures (red dots, red lines or erythema) associated with giant comedo-like openings were previous demonstrated as dermoscopic pattern in patients with Darier´s disease.
For more information read: Vázquez-López F et al in “The handheld dermoscope improves the recognition of giant pseudocomedones in Darier´s disease. 2004. J Am Acad Dermatol 50(3): 454-455
Posted by admin On January - 7 - 2010
In a 56-year-old man, on the neck
What to see at dermoscopy:
-reticular pattern with irregular pigment network
-branched streaks
-sharp and irregular border at the upper side of lesion
-irregular hypopigmentation
-blotches
-milia-like cysts
-comedo-like opening
Biopsy was indicated
Histopathological correlation: melanoma in situ
Posted by admin On June - 11 - 2009
In 82-year-old woman, on the supraclavicular fossa
What to see at dermoscopy:
-sharply demarcated and irregular border (moth-eaten appearance); within the lesion, faint and irregular network
-structureless areas
-peppering at the edge of the lesion (regression areas)
-milia-like cysts and comedo-like openings
-cerebriform appearance at the upper right portion of the lesion
Dermoscopy signs in favor of lichen planus-like keratosis
Comments: lichen planus-like keratosis is believed to be either a solar lentigo or an early seborrheic keratosis undergoing regression; important to remember that it can simulate the early changes seen in lentigo maligna.
Posted by admin On May - 27 - 2009
In a 49-year-old man, with atypical mole syndrome, on the abdominal wall; personal history of melanoma in situ excision on the upper back
What to see at dermoscopy:
-irregular pigment network
-irregular hypopigmented areas
-structureless areas
-branched streak
-terminal hair
-erythema
-comedo-like opening
Excision was indicated
Histopathological correlation: mild dysplastic nevus
Posted by admin On May - 14 - 2009
In a 64-year-old woman, on the chest
What to see at dermoscopy:
-cerebriform pattern: fissures and ridges (generally associated with acanthotic seborrheic keratosis)
-comedo-like openings
-milia-like cysts
-hairpin vessels
-erythema
Dermoscopy signs in favor of seborrheic keratosis