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Saturday, 20 February 2016

A whitish lesion




A 48-year-old woman consulted for a whitish scar-like lesion on her back.  


Clinical picture: whitish scar-like lesion with a pigmented border. Patient has a background of former heavy sun exposure.


At dermoscopy:
  • no signs in favor of a melanocytic lesion
  • a structureless  scar-like white pattern
  • pinkish areas without any vascular structures
  • a peripheral pigmentation (red square) in favor of leaf-like areas
Pathology revealed a superficial basal cell carcinoma



Friday, 12 February 2016

A temporal lesion



A 60-year-old woman consulted for this temporal  pigmented lesion


 Dermoscopy revealed:

  • blue-gray dots / globules
  • leaf-like areas



Pathology was in favor of a basal cell carcinoma

Brachial melanoma




A 54-year-old man had a rapidly growing lesion on his right back for 6 months.



Dermoscopy revealed:
  • a vascular pattern with some polymorphous and atypical vessels
  • peripheral pigmentation
  • irregular globules
  • eccentric blotches


Pathology revealed a superficial spreading melanoma with Breslow index at 1.53 mm

A pigmented lesion on a shoulder



A 48-year-old man consulted for this pigmented lesion on his right shoulder.





Dermoscopy revealed:

  • an atypical reticular pattern
  • structureless areas with regression
  • a retiform depigmentation (negative pigment network)



Pathology was in favor of a melanoma in situ.

Saturday, 16 January 2016

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.

Tuesday, 12 January 2016

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



Sunday, 10 January 2016

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

Saturday, 9 January 2016

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

Saturday, 28 November 2015

Black lesion.


A 25-year-old woman consulted for a dark pigmented lesion on her abdomen


Dermoscopy revealed:

  • asymmetry of form
  • a central blotch
  • regular pseudopods
Pathology was in favor of melanocytic Spitz nevus

Cheek lesion.




A 55-year-old man consulted for a pigmented lesion on his left cheek

Dermoscopy revealed:

  • an irregular broadened network
  • rhomboidal structures
Pathology was in favor of a lentigo maligna melanoma in situ.

A small pigmented lesion on a leg





A 29-year-old woman consulted for  a small pigmented lesion on her right leg.


Dermoscopy revealed

  • spoke wheel areas
Pathology revealed a superficial basal cell carcinoma 


Pigmented lesion on neck.


A 57 year-old-woman consulted for a pigmented lesion on her neck.


Dermoscopy revealed:
  • no melanocytic structures
  • a structureless pattern
  • irregular blue gray dots/globules 



Pathology was in favor of a Bowen's disease.

Friday, 27 November 2015

Another back lesion.


A 34-year-old man consulted for a changing pigmented lesion on his back.


Dermoscopy revealed:

  • asymmetry
  • an atypical reticular pattern
  • a regression area
Pathology revealed a melanoma in situ.


Back lesion



A 65-year-old man with many pigmented lesions on his back. One of this lesion was atypical.


Dermoscopy revealed:
  • multiple colors
  • an atypical reticular network
  • regression
  • a reticular depigmentation  (rectangle)


Pathology revealed a melanoma in situ.

Nodular lesion


A 57-year-old woman consulted for this nodular lesion on her right chest.


Dermoscopy revealed:

  • a non pigmented lesion
  • remnant of pigmentation (red circles)
  • a pink veil
  • atypical and polymorphous vessels

Pathology revealed a nodular melanoma (Breslow index 1.6mm)

Thoracic pigmented lesion


Man 52 years old; Acquired pigmented lesion on chest.



Dermoscopy revealed:

  • multiple colors
  • asymmetry of form and structures
  • an atypical network
  • a blue white veil
  • irregular dots and globules
Pathology revealed a melanoma in situ.

Saturday, 8 November 2014

Starburst pattern



A 43-year-old man consulted for this acquired pigmented lesion on his left leg.




Dermoscopy revealed:
  • a central blotch
  • a regular starburst pattern



 Two diagnoses were evoked: Reed nevus or melanoma. Regular blotch and symmetrical starburst pattern favored Reed nevus.

Lesion was excised and pathology revealed a superficial spreading melanoma with a Breslow index at 0.28mm.

Saturday, 4 October 2014

An ugly duckling


A 26-year-old woman consulted for many moles. One of them was considered "an ugly duckling".


Dermoscopy revealed:
  • an irregular blotch
  • asymmetry of form
  • chrysalis-like structures
Pathology revealed a superficial spreading melanoma (SSM) with a Breslow index at 0,6mm

Tuesday, 16 September 2014

Macular lesion on a leg.




A 42-year-old woman consulted for this lesion localized on her left leg.





Dermoscopic evaluation revealed sharply focused elongated and serpentine telangiectasias on an whitish-yellowish structureless area in favor of a necrobiosis lipoidica.

A biopsy confirmed diagnosis.

Reference: Dermoscopy of necrobiosis lipodoidica and granuloma annulare. R. Pellican and al. Dermatology 2013; 226: 319-23
ground

Sunday, 7 September 2014





A 32-year-old man consulted for this enlarging pigmented lesion.



Clinical presentation: multiple couleurs, asymmetry

Dermoscopy revealed:

  • multiple colors
  • irregular dots
  • pink structureless area
  • irregular blotch
  • regression
This lesion was easily diagnosed superficial spreading melanoma.

Pathology revealed a superficial spreading melanoma with a Breslow index at 0.5mm

Saturday, 28 June 2014





A 28-year-old patient consulted for this pigmented lesion on his right forearm.



Dermoscopy revealed:

  • multiple patches of pigmentation
  • without background pigmentation



Clinical and dermoscopic examination were in favor of an agminated nevus.

Differential diagnosis is nevus spilus: this one includes a tan background patch which is not present in agminated nevus.