It is the basal cell, the acanth cellular and the malignant melanoma.
Its cells resemble the base layer of the skin, hence its name. It occurs in the
face and neck but also in non-exposed areas, and usually in scarring, radiation
atrophy. It appears as a small pore surrounding the skin, with lips overlain and
extending to the spines. It grows extensively and deeply and destroys tissues,
cartilage, muscles, bones and even meninges.
Treatment: cauterization (≤ 5cm), surgical excision, radiotherapy (in the elderly),
cryotherapy and recent imiquimod.
Ordinary malignant skin tumor. It is due to the cumulative action of ultraviolet
rays, so we see it in photo-exposed areas and in people who are highly
exposed to the sun and light-colored individuals. It can also grow locally on
sites that act as chemical agents (tar) or on old scar soil and
immunosuppressed. It can appear on the upper lip, face, hands like a sclera or
an ant-damage or swollen nodule. Metastases occur in the lymph nodes.
Treatment: surgical excision, radiation. Follow-up quarterly for 5 years after
C) Malignant Melanoma
Exposure to the sun plays an important role. Dark-colored atoms are generally
less common because they are protected by melanin. The development of a
melanoma in a pre-existing rat occurs in almost 50% of cases. The incidence
of melanoma has been increasing in recent years. Early diagnosis is very
important. The precursors of KM are Hutchinson’s malignant lentil (Lentigo
Malign), congenital melanocytic spleen and dysplastic spleen.