epidermal nevi and basal cell carcinoma

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Collision tumor of Basal cell carcinoma with Epidermal nevi. F. Peral Rubio, M.D. Department of Dermatology Hospital Universitario Virgen Macarena Seville, Spain

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Page 1: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with

Epidermal nevi.

F. Peral Rubio, M.D.Department of DermatologyHospital Universitario Virgen MacarenaSeville, Spain

Page 2: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with Epidermal

nevi

A 65-years-old women. The patient was referred to us for

the assessment of a congenital lesion on the back.

The patient has experienced changes 2 years previously.

Page 3: Epidermal nevi and basal cell carcinoma
Page 4: Epidermal nevi and basal cell carcinoma
Page 5: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with Epidermal nevi

These are two different lesions:Basal cell carcinomaEpidermal nevi

Page 6: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with Epidermal nevi

The dermoscopic features of this pigmented basal cell carcinoma include:

Absence of pigment network Linear and arborising (branch-like)

telangiectasia Leaf-like areas Large blue-grey ovoid nests. Multiple blue-grey globules.

Page 7: Epidermal nevi and basal cell carcinoma

Linear and arborising (branch-like) telangiectasia

Page 8: Epidermal nevi and basal cell carcinoma

Leaf-like areas

Page 9: Epidermal nevi and basal cell carcinoma

Large blue-grey ovoid nests

Page 10: Epidermal nevi and basal cell carcinoma

Multiple blue-grey globules.

Page 11: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with Epidermal nevi

An epidermal nevi resembles a seborrhoeic keratosis or viral wart, with fissures, crypts and milia.

Page 12: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with Epidermal nevi

The dermoscopic features of this epidermal nevi include:Milia-like cysts Irregular crypts Fissures/ridges

Page 13: Epidermal nevi and basal cell carcinoma

Irregular crypts

Fissures/ridges

Page 14: Epidermal nevi and basal cell carcinoma

Milia-like cysts

Page 15: Epidermal nevi and basal cell carcinoma

Collision tumor

Page 16: Epidermal nevi and basal cell carcinoma

Collision tumor of Basal cell carcinoma with

Epidermal nevi.

F. Peral Rubio, M.D.Department of DermatologyHospital Universitario Virgen MacarenaSeville, Spain