This study demonstrates that PSM is a distinctive, possible low-grade variant of melanoma usually lacking the histological features predictive of aggressive behaviour seen in ordinary melanoma. It should be managed in the same way as other melanomas with wide local excision.

The Q-switched 532 nm Nd:YAG laser in combination with topical Dermovate ointment is a safe and effective method of treating red ink tattoo reactions.

The Buschke-Loewenstein tumour is regarded as a type of verrucous carcinoma occurring on anogenital mucosal surfaces. The tumour is locally invasive but displays a benign cytology and rarely metastasizes. It is associated with human papillomavirus types 6 and 11. We describe a case of Buschke-Loewenstein tumour occurring in a 61-year-old man which behaved in a locally aggressive manner and was associated with human papillomavirus type 16 and erythroderma which proved resistant to treatment. The patient refused surgery and therapy with interferon alpha was ineffective. Chemotherapy with systemic cisplatin and 5-fluorouracil produced a partial response before the patient succumbed from gram-negative septicaemia.

Hereditary multiple glomus tumours constitute an autosomal dominant skin disease which is known to demonstrate cutaneous mosaicism typified by type 1 and 2 segmental arrangements. We report a patient with type 2 segmental multiple glomangiomyomas who was disturbed by the pain of her lesions. A symptomatic lesion was successfully treated with the pulsed dye laser and to date there has been no recurrence of the pain. Possible explanations for the clinical response are discussed.

Childhood granulomatous periorificial dermatitis (CGPD) is a benign, facial eruption which has previously been reported in prepubertal, Afro-Caribbean children. It is a condition of unknown aetiology, characterized by a monomorphic, papular eruption around the mouth, nose and eyes. Typically the eruption persists for several months but resolves without scarring. The condition can usually be distinguished from sarcoidosis on clinical and histological grounds. To our knowledge, this is the first case of CGPD occurring in an Asian child with sarcoidal histology and is unusual in its persistence for 4 years. We suggest that this case of CGPD may well be a variant of sarcoid.

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We describe two cases of spinal dysraphism where detection of the cutaneous signs - namely a faun-tail naevus and diffuse hypertrichosis - led to early recognition of the occult neurological abnormalities and institution of corrective surgery. The dermatologist may be the first physician to observe these skin changes and an early neurosurgical referral can prevent subsequent neurological complications.

Intravascular KS is a peculiar hitherto unrecognized morphological variant of KS that does not seem to be associated with an increased risk of aggressive behaviour.