Study By Disease

Study By Disease

…lcer (Quiz #889) Traumatic purpura and ulceration (Quiz #659) Trichoblastoma and basal-cell (trichoblastic) carcinoma in a nevus sebaceus (Quiz #751) Tuberculoid leprosy (Quiz #841) Tuberculoid leprosy (tuberculoid hanseniasis) (Quiz #828) Tuberculoi…

Differential Diagnosis in Dermatopathology

Discussions

…to wit, trichoepithelioma. Trichoepithelioma is that type of trichoblastoma which has a cribriform pattern and infundibulocystic basal-cell carcinoma is basically a trichoblastic carcinoma with an anastomosing pattern punctuated by numerous infundib…

Differential Diagnosis in Dermatopathology

Images

Trichoblastoma, small nodular type Basal-cell carcinoma, small nodular type…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Trichoblastoma, small nodular type Basal-cell carcinoma, small nodular type 1. Pattern formed by nodules is relatively monomorphic 1. Pattern formed by nodules is polymorphic 2. Most nodules are relatively uniform in size and shape 2. Nodules…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Trichoblastoma, trichoepitheliomatous type Trichoblastic (basal-cell) carcinoma, nodular type 1. Ulceration uncommon and always secondary to trauma 1. Ulceration common 2. Neoplasm symmetrical 2. Neoplasm asymmetrical 3. Neoplasm well-circum…

Differential Diagnosis in Dermatopathology

Images

Trichoblastoma, trichoepitheliomatous type Trichoblastic (basal-cell) carcinoma, nodular type…