Small, beware !

A 42-year-old man consulted for this small (4mm) pigmented lesion on his left calf.

Dermoscoy revealed:

• asymmetry of colors and structures
• some irregular blotches
• an atypical pigment network
• a radial streaming

Lesion was excised and pathology was in favor or a melanoma in situ.

A pigmented lesion

A 32-year-old man had his moles checked up.

Dermoscopy revealed:

• whitish globules  / white cobblestone pattern
• Light-brown peripheral network

 In favor of an accessory nipple

Central white cobblestone pattern

 Reference:

Dermoscopy of accessory nipples in authors’ own study 

G. Kamińska-Winciorek, J. Szymszal, W. Silny

Postep Derm Alergol 2014; XXXI, 3: 127–133

A pigmented labial lesion

A 24-year-old woman consulted for a pigmented labial lesion.

Dermoscopy revealed multiple curves of semicircle, U or V mimicking the scales of a fish.

This fish scale-like pattern was in favor of a mucosal melanotic macule.

Fish scale-like pattern

Fish scale-like pattern is a new pattern described in mucosal melanotic macules.

Reference: 
Dermoscopy of pigmented lesion on mucocutaneous junction and mucous membrane.
Lin J, Koga H, Takata M, Saida T. 
BJD 161 (6); 1255-61

A yellowish lesion

A 70-year-old woman consulted for this small lesion on her right upper lid.

Dermoscopy revealed:

• a yellow clod pattern
• vessels arranged in a radial arrangement 

typical of a sebaceous hyperplasia

Red lesions

A 62-year-old woman consulted for an acquired red tumor on her left ankle.

Dermoscopy revealed:

• regular red dots
• in a stringlike  distribution

in favor of a clear cell acanthoma