Emerging on a forearm

A 73-year-old man consulted for a pigmented lesion on his right forearm. This lesion was not symmetrical and been recently discovered by patient.

Dermoscopy revealed:

• an asymmetrical pigmentation
• a disorganised and atypical reticular network
• an homogeneous area

This lesion was excised and pathology revealed a superficial spreading melanoma in situ. 

Red lesion

The same 65-year-old man presented a red lesion on his back.
Dermoscopy revealed:

• no signs for a melanocytic lesion
• thin arborizing vessels (green arrow)
• ulcerations (black arrow)
• blue gray globules (white arrow)

in favour of a basal cell carcinoma

Black lesion is back

A 65-year-old man consulted for a dark pigmented lesion on his back.
Dermoscopy revealed:

• absence of pigment network
• milia-like cysts
• comedo-like openings

in favor of a seborrheic keratosis.

Red nodule

A 62-year-old man consulted for a red tumor on his back.

Three dermoscopic pictures are exposed with different levels of pressure on the tumor. Vessels are well seen with a slight pressure.

Dermoscopy revealed arborizing vessels and a blue globule in favour of a basal cell carcinoma.

Forearm lesion

A 59-year-old woman consulted for this pigmented lesion on her right forearm.

Dermoscopy revealed:

• irregular pigmentation
• atypical reticular pattern
• irregular dots / globules
• brown dots
• regressive homogeneous area

in favor of a melanoma.

This lesion was excised and pathology revealed a superficial spreading melanoma with a Breslow index at 0,47mm