Diagnosis: Basisquamous carcinoma
Description: An ulcer with heaped up crust and friable tissue.
Morphology: Ulcer
Site: Scalp
Sex: F
Age: 83
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential DiagnosisHistory: An old woman with an atrophic bald scalp started to develop many red patches with peripheral black dotty pigmentation of more than one year duration. Later on many ulcers arose within these patches. The biggest ulcer was at the parietal area of the scalp. This ulcer was covered with heaped up friable and hemorrhogic crusty material. Many firm to hard non tender lymph nodes were palpated in the head and neck region. The strange and interesting thing in this case was the lesions clinically start as BCC (Pigmented) and later on they resemble SCC and coincides with this is the histopathology of many biopsies (early and late lesions) showed basisquamous cell carcinoma.