/ Evaluation test
Evaluation test #03129/2017
Histological features of neoplastic cell of squamous cell carcinoma is characterized by:
Cellular location exclusively in the epidermis and do not break the basement membrane.
The number of mitoses is low.
Malignant cells have a variable keratinization called keratin pearls.
Fusiform cells immersed in an abundant matrix of mature collagen.
The presence of keratin pearls:
They are observed in the stromal tumors.
It is a characteristic finding of ameloblastic ameloblastomas.
They are observed in ameloblastic carcinomas.
They are characteristic of squamous cell carcinomas.
The growth pattern of squamous cell carcinomas:
It is not expansive, they are well-defined benign neoplasms.
It is very expansive, but the tumor is well delimited and encapsulated.
It is characteristic that they are not very expansive and no invasion of the lymphatic vessels is observed.
They have an infiltrative growth, and are not well defined with the possibility of infiltration along nerve sheaths, adventitia of blood vessels and lymphatics.
Squamous cell carcinomas are a:
Malignant non infiltrative and metastatic tumor.
The presence of ulceration is a sign of malignancy.
The biopsy and histopathological study is not important for accurate diagnosis.
Regarding the gross findings of the lesion (picture): what macroscopic feature do you consider which indicate that it is a malignant neoplasm?
Pedunculated and ulcerated lesion.
Base broad implantation, with ulceration, loss of teeth - periodontal inflammation or / and osteomyelitis.
Loss of teeth and ulceration.
Localized lesion with a broad base of implantation with periodontal inflammation.
- Macroscopic study
- Histological study
- Evaluation test
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