A 73-year-old Japanese woman presented with cutaneous horn on the right cheek. The resected tumor was 9 mm in diameter, with 14 mm protrusion, and showed exophytic growth with marked papillomatosis. Histopathology showed proliferation of atypical melanocytes with melanin pigments in the epidermis and dermis under the cutaneous horn. These cells were confined to the base of the cutaneous horn, a...

We describe the case of a 67-year-old man with a clinical history of smoking, hypertension, and hyperhomocysteinemia. The patient was referred for verrucous lesions on the face that had appeared more than 1 month earlier. A dermatological examination revealed several small, hyperkeratotic lesions on the cheeks and around the mouth (Figure 1A), as well as brownish plaques in the axillary and ing...

Camel papillomatosis has been described previously, but the genome of the suspected papillomavirus (PV) has not been identified. An outbreak of papillomatosis occurred in a dromedary farm of 55 animals in Sudan during August 2009. The disease was only present in young animals aged about 3-7 months, of which 44 % (11/25) were affected with lesions, mainly on the lips and lower jaw. This study re...

primary cutaneous anaplastic large cell lymphoma is a t-cell malignancy with atypical cd30 positive lymphocytes. pseudoepitheliomatous hyperplasia is an uncommon finding in primary cutaneous anaplastic large cell lymphoma, and may mimic squamous cell carcinoma as pseudomalignancy. careful attention of a pathologist to correct diagnosis of pseudoepitheliomatous hyperplasia and its underlying cau...

BACKGROUND Confluent and reticulated papillomatosis (CARP), also known as Gougerot-Carteaud syndrome, is a rare disorder. It usually presents as hyperkeratotic brown papules that coalesce into plaques with a reticulated periphery on the central trunk of young adults. Confluent and reticulated papillomatosis is most often clinically confused with tinea versicolor and usually does not respond to ...

Acanthosis nigricans (AN) is characterized by symmetric, velvety, gray-brown hypertrophied plaques most commonly on the axillae and neck. Confluent and reticulated papillomatosis (CRP) is manifested by papules in the mid-chest that coalesce in the midline, and are arranged in a reticulated pattern peripherally. Both diseases are known to be related to endocrinopathies such as diabetes mellitus ...

Papillomas are among the most common equine cutaneous neoplasms (Baker and Leyland 1975; Sundberg et al. 1977). Acquired cutaneous papillomas in horses are viral-induced neoplasms which occur in 2 distinct forms: viral papillomatosis and ear papilloma (aural plaques) (Scott and Miller 2003). Viral papillomatosis most often occurs in horses aged <3 years, and spontaneous remission usually occurs...

Case report When^?ctor had been well until the 12th August, 1944, ^hilp a sharp pricking pain on the left nipple, pjjQ 1 u&dressing. On examination, he noticed a small in the area, but took no notice of it. The Painf, i gradually became bigger in size and slightly iHovp the 14th, he felt feverish and pain on Tty0 *?ent of the left arm but went to work as usual. *jth later, there was a sharp ris...