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Dermoscopy. Seborrheic keratosis and
networklike structures
F. Peral Rubio, M.D.Department of DermatologyHospital Universitario Virgen MacarenaSeville, Spain
Dermoscopy. Seborrheic keratosis and networklike structures
A 65-years-old men. The patient was referred to us for
the assessment of a lesion on the head 10 years previously.
Dermoscopy. Seborrheic keratosis and networklike structures
Dermoscopy shows: Sharply demarcated lesion with a
moth-eaten border. Networklike structures. Irregular crypts (brain - like
appearance with fissures and ridges).
Sharply demarcated
Networklike structures
Networklike structures
Irregular crypts
Sharply demarcated
Dermoscopy. Seborrheic keratosis and networklike structures
Networklike structures This structure did not correspond to the classic
"pigment network" of melanocytic lesions but resembled them.
The lines of these structures are often hyperpigmented and may end abruptly at the periphery.
The grids of these "networklike structures" are much larger than the one seen in a typical pigment network and the holes do not always correspond to the tips of the dermal papillae, but to keratin-filled structures (fissures, comedolike).
Dermoscopy. Seborrheic keratosis and
networklike structures
F. Peral Rubio, M.D.Department of DermatologyHospital Universitario Virgen MacarenaSeville, Spain