Search Results for: nodule

Pigmented tumor in the nostril

Pigmented tumor in the nostril

…, typically from yellow to brown, in relation to the content of 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…

Differential Diagnosis in Dermatopathology

Discussions

…rnal malignancies, especially of carcinomas. Clinically, a solitary reticulohistiocytic granuloma typically is a dome-shaped nodule positioned on a face or a scalp. Multicentric reticulohistiocytosis also consists of dome-shaped nodules, and they…

Differential Diagnosis in Dermatopathology

Discussions

…ure. Clinically, “Pseudolymphoma” of the B-cell type 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…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Inverted Follicular Keratosis, Tricholemmoma, and Desmoplastic Tricholemmoma?

…90 percent on the face, the remainder on other parts of the body. These lesions are characterized clinically by a papule or nodule, practically always single and usually projecting from the surface. The character of the cells comprising the central…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…er Verlag, 1991:1002. “The cutaneous horn is a morphologic designation for a projectile, conical, dense hyperkeratotic nodule that resembles the horn of an animal.” Schwartz RA, Stoll HL. Epithelial precancerous lesions. In: Fitzpatrick…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Dermatofibroma, hemorrhagic papulo-nodule Kaposi’s sarcoma, hemorrhagic papulo-nodule 1. Poorly circumscribed; border sometimes jagged 1. Well-circumscribed; border smooth 2. Epidermis acanthotic and hyperpigmented 2. Epidermis thinned and…

Differential Diagnosis in Dermatopathology

Images

…Dermatofibroma, hemorrhagic papulo-nodule Kaposi’s sarcoma, hemorrhagic papulo-nodule

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…than a neoplastic, process. It begins as a pink macule that quickly becomes a red papule and sometimes even a red or purple nodule. In time the domed lesion becomes brown, and, in the course of years, it slowly but surely flattens into a macule…

Differential Diagnosis in Dermatopathology

Trichoblastoma, small nodular type vs. Trichoblastoma, large nodular type

…gged, or notched border, and variegate, mostly shades of brown. A patch may become a plaque or upon it may develop a papule, nodule, or tumor. A papule may develop into a nodule or tumor. The surface of an elevated lesion of melanoma tends to be…