Search This Blog

Wednesday 11 May 2016

Eccentric pigmentation

36-year-old woman with an atypical pigmented lesion on her left leg

Demoscopy revealed:

  • an eccentric hyperpigmentation
  • an atypical reticular network
  • pseudopods

Pathology revealed a superficial spreading melanoma with Breslow index at 0.25 mm

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


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 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.

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

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 


A 21-year-man consulted for this lesion on his arm

Dermoscopy revealed:

  • a whitish - pinkish structureless area
  • with gray dots
in favor of a regressive lesion.

Pathology was in favor of a fully regressive melanocytic lesion. A fully regressive melanoma cannot be ruled out. 

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