Figure 133.1
Histopathological features of seborrhoeic keratosis. Skin with hyperkeratosis, irregular acanthosis, keratin‐filled invaginations and small pseudocyst...
Figure 133.5
There are six main dermoscopic features of seborrhoeic keratosis. (a) Cerebriform pattern. (b) Fingerprint structures. (c) Comedo‐like openings. (d) M...
Figure 133.9
Histology of a skin tag. Polypoid skin covered by mildly hyperkeratotic epidermis, containing thin‐ and thick‐walled blood vessels in the dermal strom...
Figure 133.2
Flat seborrhoeic keratosis.
Figure 133.6
Cupuliform papules of dermatosis papulosa nigra.
Figure 133.10
Histological features of pseudoepitheliomatous hyperplasia. Skin showing compact hyperkeratosis with uneven prominent epidermal downgrowths and dermal...
Figure 133.3
Cerebriform appearance of seborrhoeic keratosis.
Figure 133.7
Histopathological features of clear cell acanthoma. A papulonodular lesion showing a well‐demarcated area of epidermal hyperplasia (acanthosis). The l...
Figure 133.4
Seborrhoeic keratosis showing dull non‐reflective hyperkeratotic surface. This contrasts with melanocytic lesions.
Figure 133.8
Clear cell acanthoma.
