Disease A-Z Library

Rx Cancer (A – Z)

Browse plain-English disease and condition guides, including symptoms, causes, diagnosis, treatment options, prevention, and when to seek medical care.

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Diseases A-Z

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Angioma Serpiginosum

Angioma serpiginosum is a rare, harmless skin condition caused by tiny, surface-level blood vessels that are widened and bunched together. On the skin it looks like...

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Types T-Cell Lymphomas

T-cell lymphomas are cancers that start from mature (“peripheral”) T lymphocytes. They are uncommon compared with B-cell lymphomas and include many subtypes with different behaviors, symptoms,...

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Lymphogranulomatosis X

Lymphogranulomatosis X (LgX) was an older clinicopathologic label used in the 1970s–1980s for a syndrome that overlapped with “immunoblastic lymphadenopathy” and “angioimmunoblastic lymphadenopathy.” Modern pathology re-classified...

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Immunoblastic Lymphadenopathy

Immunoblastic lymphadenopathy is an older name doctors used for a disorder that causes swollen lymph nodes, fever, rashes, and abnormal blood proteins. With better science, we...

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Angioimmunoblastic T-cell Lymphoma (AITL)

Angioimmunoblastic T-cell lymphoma—today grouped under nodal T-follicular helper (TFH) cell lymphomas, angioimmunoblastic-type—is a fast-growing (aggressive) non-Hodgkin lymphoma that starts from a mature CD4 T-cell that behaves...

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Anauxetic Dysplasia Type 1

Anauxetic dysplasia type 1 (ANXD1) is the most severe end of the cartilage-hair hypoplasia–anauxetic dysplasia (CHH-AD) spectrum, a group of skeletal dysplasias caused by biallelic variants...

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Anauxetic Dysplasia

Anauxetic dysplasia is a very rare genetic bone growth condition. It starts before birth and causes extreme short stature (dwarfism) with short limbs, joint looseness (hypermobility),...

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Anaplastic Oligodendroglioma

Anaplastic oligodendroglioma is a grade 3 (faster-growing) brain tumor that starts from cells called oligodendrocytes, which help make the insulation (myelin) around brain nerve fibers. Today,...

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WHO Grade III Mixed Glioma

WHO grade III mixed glioma” is an older name used when a brain tumor looked like a mix of two cell types: astrocytes and oligodendrocytes. “Mixed”...

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Anaplastic Mixed Glioma

Anaplastic mixed glioma” (also called anaplastic oligoastrocytoma) was an older name for a fast-growing brain tumor that looked like a mix of two cell types under...

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Anaplastic Oligoastrocytoma

Anaplastic oligoastrocytoma was the old name for a malignant (fast-growing) brain tumor that looked like a mix of two cell types: astrocytes and oligodendrocytes. Modern testing...

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