Search Results for: nodule

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Metastasizing Dermatofibroma?

…tastasizing cellular dermatofibroma for a recurrent cutaneous nodule that gave rise to metastases to the lung in two patients. One of the lesions was situated on a thigh and the other on the back of the neck. Prior to the development of metastases, b…

Dermatology Practical & Conceptual

Dermatoscopic pattern of digital mucous cyst: report of three cases

…ry of a solitary, round, dome-shaped, fluctuant, asymptomatic nodule 8 mm in diameter located off the midline of the dorsal side of the third toe between the DIP joint and the proximal nail fold (Figure 1A). Polarized light dermoscopy without compres…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ingly abnormal lymphocytes in the dermis = Mycosis fungoides, nodule  The ulcer is a consequence of the effects of the lymphomatous process, rather than of external trauma. Abnormal lymphocytes are present in the acanthotic epidermis, as well as in t…

Dermatology Practical & Conceptual

Pigmented tumor in the nostril

…melanin [5]. The lesion most often arises as a solitary skin nodule on the face (85%) [4]; however, multiple IFK have been described in Cowden’s syndrome [6]. The cheek and the upper lip are the sites of predilection; other sites affected are…

Differential Diagnosis in Dermatopathology

Discussions

…theme pathologic. Clinically, xanthogranulomas are papules or nodules with a yellow, orange, or tan cast. The color results from abundant lipid in the cytoplasm of histiocytes that constitute the bulk of the lesion. The condition is better termed xan…

Differential Diagnosis in Dermatopathology

Discussions

…e presents itself typically as a solitary pink-purple papule, nodule, or plaque on a face. Lesions multiple on a face especially or on any other site anatomic, and tending to be agminated were diagnosed a few decades ago as “pseudolymphoma&#822…

Histologic Diagnosis of Inflammatory Skin Diseases

Granuloma annulare

…screte Individual lesions Papules and plaques in the skin and nodules in the subcutaneous fat Course As a rule, resolving slowly over months without residua; atrophic macules or patches are remnants rarely Variations clinical Subcutaneous granuloma a…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…e primary lesions include macules, patches, papules, plaques, nodules, tumors, vesicles, pustules, and bullae. Secondary lesions, by contrast, are said to be scales, crusts, erosions, ulcers, excoriations, lichenification, and fissures. Regrettably,…