42 Lentigo simplex INITIAL PRESENTATION Hyperpigmented macules on the nasal planum and lip margins in a cat. INTRODUCTION Hyperpigmentation (also referred to as melanoderma or hypermelanosis) is an increase in the cutaneous pigment melanin. This increase may be genetic or acquired (post-inflammatory, endocrine), or neoplastic. Lentigo (plural lentigenes) is a flat brown–black pigmented macule that is circumscribed and well demarcated. In dogs, lentigenes may be more visible on the glabrous skin of the ventrum, although they can be present anywhere. They are seen mainly in adult dogs, where they increase in size and number over a period of months and then remain static. An inherited form, referred to as lentiginosis profusa, is reported in pugs. A genetic hypermelanosis, ‘lentigo simplex’, is recognized in ginger cats. This type of hypermelanosis is only cosmetic in nature, but some owners who are concerned about an apparent disease may seek advice. It is important that clinicians are aware of it, and this report describes such a case in a cat. CASE PRESENTING SIGNS A 2-year-old castrated cat was presented with hyperpigmented macules on the nasal planum and the lip margins. CASE HISTORY Lentigo simplex is not associated with any systemic signs. The hyperpigmentation usually appears in young ginger or tortoiseshell cats. The condition becomes static over time and is unaffected by the seasons. The main reason for presentation is the owner’s concern over the appearance of these spots. In this case the relevant history was: • An increase in the number of pigmented spots on the lips over the past few months. • The condition was non-pruritic. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Cheyletiellosis in a rabbit Acral lick dermatitis Demodicosis Digital squamous cell carcinoma Stay updated, free articles. Join our Telegram channel Join Tags: Saunders Solutions in Veterinary Practice Small Animal Dermatolo Sep 3, 2016 | Posted by admin in SMALL ANIMAL | Comments Off on Lentigo simplex Full access? Get Clinical Tree
42 Lentigo simplex INITIAL PRESENTATION Hyperpigmented macules on the nasal planum and lip margins in a cat. INTRODUCTION Hyperpigmentation (also referred to as melanoderma or hypermelanosis) is an increase in the cutaneous pigment melanin. This increase may be genetic or acquired (post-inflammatory, endocrine), or neoplastic. Lentigo (plural lentigenes) is a flat brown–black pigmented macule that is circumscribed and well demarcated. In dogs, lentigenes may be more visible on the glabrous skin of the ventrum, although they can be present anywhere. They are seen mainly in adult dogs, where they increase in size and number over a period of months and then remain static. An inherited form, referred to as lentiginosis profusa, is reported in pugs. A genetic hypermelanosis, ‘lentigo simplex’, is recognized in ginger cats. This type of hypermelanosis is only cosmetic in nature, but some owners who are concerned about an apparent disease may seek advice. It is important that clinicians are aware of it, and this report describes such a case in a cat. CASE PRESENTING SIGNS A 2-year-old castrated cat was presented with hyperpigmented macules on the nasal planum and the lip margins. CASE HISTORY Lentigo simplex is not associated with any systemic signs. The hyperpigmentation usually appears in young ginger or tortoiseshell cats. The condition becomes static over time and is unaffected by the seasons. The main reason for presentation is the owner’s concern over the appearance of these spots. In this case the relevant history was: • An increase in the number of pigmented spots on the lips over the past few months. • The condition was non-pruritic. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Cheyletiellosis in a rabbit Acral lick dermatitis Demodicosis Digital squamous cell carcinoma Stay updated, free articles. Join our Telegram channel Join Tags: Saunders Solutions in Veterinary Practice Small Animal Dermatolo Sep 3, 2016 | Posted by admin in SMALL ANIMAL | Comments Off on Lentigo simplex Full access? Get Clinical Tree
