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In modern English, tumor (non-US spelling: tumour) is used as a synonym for a neoplasm (a solid or fluid-filled cystic lesion that may or may not be formed by an abnormal growth of neoplastic cells) that appears enlarged in size. [12] [13] Some neoplasms do not form a tumor; these include leukemia and most forms of carcinoma in situ.
Symptomatic features of paraneoplastic syndrome cultivate in four ways: endocrine, neurological, mucocutaneous, and hematological.The most common presentation is a fever (release of endogenous pyrogens often related to lymphokines or tissue pyrogens), but the overall picture will often include several clinical cases observed which may specifically simulate more common benign conditions.
Ischaemic fasciitis, previously termed atypical decubital fibroplasia or decubital ischemic fasciitis, was thought to be a non-neoplastic lesion and to occur only in the deep subcutaneous tissue at pressure points or bone prominences but more recently has been found to be a benign neoplasm that can occur in a wider range of tissue sites. [5] [6]
On histology, giant cells of fused osteoclasts are seen as a response to neoplastic mononucleated cells. Notably, giant cells are not unique among benign bone tumors to giant cell tumors of bone. Molecular characteristics of the neoplastic cells causing giant cell tumors of bone indicate an origin of pluripotent mesenchymal stem cells that ...
Malignant mesothelioma and non-squamous non-small cell lung cancer. Myelosuppression, renal impairment, peripheral neuropathy, supraventricular tachycardia (uncommon), hepatitis (rare), colitis (rare), pneumonitis (rare), radiation recall (rare), Stevens–Johnson syndrome (rare) and toxic epidermal necrolysis (rare). Pralatrexate: IV
A true mixed tumor contains multiple types of neoplastic cells. [4] Some sources require the included tissue types to be neoplastic for the definition of mixed tumor. [1]A "false" mixed tumor contains one type of neoplastic cells, but which have more than one appearance.
Pseudo-Cushing's syndrome or non-neoplastic hypercortisolism is a medical condition in which patients display the signs, symptoms, and abnormal cortisol levels seen in Cushing's syndrome.
Malignancy (from Latin male ' badly ' and -gnus ' born ') is the tendency of a medical condition to become progressively worse; the term is most familiar as a characterization of cancer.