Differential Diagnosis in Dermatopathology

Images

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

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

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

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Differential Diagnosis in Dermatopathology

Trichoepithelioma vs. Infundibulocystic basal-cell carcinoma

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, 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

Differential Diagnosis

Sebaceous hyperplasia Nevus sebaceus of Jadassohn 1. Dome-shaped papule with a central cell 1. Relatively flat-topped plaque in early stage; papillated or digitated plaque in fully developed and later stages; no dell 2. Basket-woven pattern of…

Differential Diagnosis in Dermatopathology

Images

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