Abstract Introduction Verrucous squamous cell carcinoma is a rare tumour of the oesophagus with a few reported cases in the literature. While it is an uncommon malignancy, the natural history is substantially more favourable compared to adenocarcinoma and squamous cell carcinoma. A pre-operative tumour biopsy with unyielding results is not uncommon for this type of tumour. In the following repo...

Poroqueratosis (PQ) refers to a group of disorders of keratinization with the common histological feature of the presence of cornoid lamellae, narrow columns of parakeratosis on a focally disorganized epidermis.1 We present 2 patients with lesions compatible with linear PQ, with extensive involvement of one side of the body. The first patient was a 23-year-old man with no past history of intere...

To the Editor: We read with interest the article titled “A Histopathologic and Imaging Study of Verrucous Hemangioma” by Dr. Garrido-Ríos et al1 published in the November 2008 issue of Actas Dermosif iliográficas.1 It is difficult to establish retrospective diagnoses without clinical (and not just histologic) images of the primary lesion. The appearance and change in these images would provide ...

BACKGROUND Oral verrucous hyperplasia (OVH) and oral verrucous carcinoma (OVC) are two distinct clinicopathologic verrucous lesions. However, the distinction between the two lesions still remains enigmatic. It is almost impossible to distinguish them clinically. Thus, the final diagnosis rests on the histopathological characteristics of both lesions, being distinguished from each other by an ex...

Melanoma is characterised by a variety of clinical and histopathological presentations. Dermoscopy is a fast, non-invasive technique that increases diagnostic accuracy for both melanocytic and non-melanocytic skin tumours. One example of a potential pitfall in melanoma diagnosis using dermoscopy is represented by seborrheic keratosis (SK) that looks like melanomas, which may show overlapping fe...

Proliferative verrucous leukoplakia (PVL) is a particularly aggressive form of oral leukoplakia that is resistant to treatment and presents a high risk of recurrence and malignant transformation. This article describes the microscopic and clinical characteristics of one case of PVL, which initially presented as hyperkeratosis with mild dysplasia and posteriorly developed multifocal areas and ve...