Search Results for: nodule

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,…

Dermatology Practical & Conceptual

Nodules on the right ear

…boy with a one-year history of asymptomatic, slowly enlarging nodules affecting his right ear was seen. The patient’s past medical history was unremarkable, he was not immunosuppressed, he was not taking any drugs, and he was employed as a rubb…

Dermatology Practical & Conceptual

Glomangiosarcoma in the shoulder of a 51-year-old man

…er his trunk and neck. A 1 cm pink, firm, rubbery, non-tender nodule was present on the back of left shoulder. There was no lymphadenopathy. A shave biopsy of the left shoulder lesion was performed. Histopathological findings Shave biopsy showed a ce…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

-oid?

…alisade, as is the case for granuloma annulare and rheumatoid nodule. “Histiocytes,” as the neoplastic cells of epithelial sarcoma are claimed to be, are nonepithelial and, therefore, referring to them as “epithelioid is, at the lea…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…ickly 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 that is hypopigmented in its center and hyperpigmented at its perip…

Differential Diagnosis in Dermatopathology

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

…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 uneven. When a melanoma is no longer flat, it has capability to met…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…c designation for a projectile, conical, dense hyperkeratotic nodule that resembles the horn of an animal.” Schwartz RA, Stoll HL. Epithelial precancerous lesions. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in General Medic…

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 of…