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Cutaneous squamous-cell carcinoma (cSCC), also known as squamous-cell carcinoma of the skin or squamous-cell skin cancer, is one of the three principal types of skin cancer, alongside basal-cell carcinoma and melanoma. [10] cSCC typically presents as a hard lump with a scaly surface, though it may also present as an ulcer. [1]
Micrograph of psammoma body in the centre of the field in a meningioma of brain. H&E stain. A psammoma body is a round collection of calcium, seen microscopically. The term is derived from Greek άμμος (ámmos) 'sand'.
Hemangioblastomas usually occur in adults, yet tumors may appear in VHL syndrome at much younger ages. Men and women are approximately at the same risk. Although they can occur in any section of the central nervous system, they usually occur in either side of the cerebellum, the brain stem or the spinal cord. [2] [7]
What it looks like: Purplish lesions on the inner arms, legs, wrists, or ankles can signify lichen planus, a skin rash triggered by an overreaction of the immune system.
Neurocutaneous melanosis is a congenital disorder characterized by the presence of congenital melanocytic nevi on the skin and melanocytic tumors in the leptomeninges of the central nervous system. [2] These lesions may occur in the amygdala, cerebellum, cerebrum, pons and spinal cord of patients.
Neurosurgeon looks at MRI scan with brain images. It’s always scary to hear the word “cancer,” but “brain cancer” is especially ominous; the five-year survival rate for someone diagnosed ...
A meningeal melanocytoma is a rare, pigmented tumor found on the leptomeninges of the brain, [6] [7] typically in the area of the base of the brain and brainstem, [2] or the spine. [4] [11] Symptoms may be absent or related to the tumor's growth and location. Similar to optic melanocytomas, the main concerns include growth, recurrence, and ...
Cancer can be considered a very large and exceptionally heterogeneous family of malignant diseases, with squamous-cell carcinomas comprising one of the largest subsets. [19] [20] [21] All SCC lesions are thought to begin via the repeated, uncontrolled division of cancer stem cells of epithelial lineage or characteristics.