Keratosis lichenoides chronica or nekam disease is a rare dermatosis of unknown etiology. It is characterized by linear and reticulate lesions of lichenoid appearance, scaly plaques, and keratotic papules on the trunk and limbs. In addition to these 3 characteristic features, there may also be an eruption on seborrheic areas of the face. This clinical variability, the numerous confusing names g...

BACKGROUND Chronic graft-versus-host disease is a serious complication of allogeneic hematopoietic cell transplantation, and the mouth is one of the affected sites. OBJECTIVE The aim of this study was to evaluate the oral features of this disease after hematopoietic cell transplantation. METHODS This was a cross-sectional multicenter study that enrolled patients submitted to transplantation...

Lichen planus (LP), although a dermatosis, is more common in the oral mucous membrane than in the skin. Lesions of oral LP are classically found on the buccal mucosa and gingiva. Among the various types, the reticular lesions are asymptomatic and require no treatment, but pain and severe discomfort accompany the erosive or ulcerative lesions. Malignant transformation to squamous cell carcinoma ...

A 34 year man presented to us with itchy lesions on one half of the trunk for the past two months. The lesions started as erythematous to violaceous papules and plaques on the flank and gradually increased in number to involve the left side of the trunk (Figure 1 and 2). Some areas showed the Koebner phenomenon. These lesions were distributed along the lines of Blaschko. Examination of the oral...

introduction: different oral lesions have clinical characteristics which in some cases are similar. therefore, in these cases histopathological examination for correct diagnosis is necessary. the aim of this study was to evaluate the compatibility rate of clinical and histopathological diagnosis of oral lesions in zahedan school of dentistry. methods: in this retrospective study, determination ...

Basal cell carcinoma (BCC) is a malignant tumor that may arise in skin damaged by sunlight and ionizing radiation in burn or vaccination scars. Clinical variants of BCC include nodular, morphea type, superficial and polypoid. Tattoo reactions are histologically diverse and can be classified in three main classes: 1) Allergic, granulomatous, and Lichenoid reactions; 2) Inoculation and infe...

INTRODUCTION The term Wolf's isotopic response refers to the appearance of a new skin disease at the site of an already healed, unrelated disease. In most cases, the initial disease is herpes zoster. Different diseases may subsequently develop on the same site. The most common isotopic responses are granulomatous and lichenoid reactions, infiltrations of hematologic diseases, skin tumors, and i...

BACKGROUND Neoplasia-induced lichen planus is described as a cell-mediated reaction to unknown epithelial antigens. Paraneoplastic pemphigus (PNP), characterized by the presence of a specific array of autoantibodies, probably represents a different form of presentation of the same autoimmune syndrome where the mucocutaneous expression depends on the dominant pathologic mechanism. METHODS The ...