Cancer and Organ Involvement: Understanding Site-Specific Effects

Cancer Can Affect Any Organ System

The original query did not specify a cancer type or organ. Cancer is not a single disease but a group of diseases characterized by uncontrolled cell growth that can originate in or spread to virtually any tissue.

Common Primary Sites & Organ Impact

Systemic Effects (Paraneoplastic)

Endocrine: SIADH, Cushing's, hypercalcemia (PTHrP), carcinoid syndrome.
Neurologic: Lambert-Eaton, cerebellar degeneration, encephalitis.
Dermatologic: Acanthosis nigricans, dermatomyositis, Sweet's syndrome.
Hematologic: TTP, DIC, eosinophilia, anemia of chronic disease.
Constitutional: Cachexia, fever, fatigue (cytokine-driven).

Metastatic Patterns

"Seed and soil" – common sites: bone, liver, lung, brain, adrenals. Organ-specific tropism (e.g., prostate→bone, breast→bone/liver/brain/lung).

Please specify a cancer type or organ for detailed information.

Other Cancers - Related Articles

Organ System	Common Cancers	Key Functional Impact
Lung	NSCLC, SCLC	Airway obstruction, hypoxia, pleural effusion, paraneoplastic syndromes
Breast	Ductal/lobular carcinoma	Local invasion, lymphedema, bone/liver/brain mets
Colorectal	Adenocarcinoma	Obstruction, bleeding, perforation, liver mets
Prostate	Adenocarcinoma	Urinary obstruction, bone mets, hormonal effects
Pancreas	Ductal adenocarcinoma	Biliary obstruction, diabetes, cachexia, peritoneal spread
Liver	HCC, cholangiocarcinoma	Synthetic failure, portal HTN, varices, encephalopathy
Brain/CNS	Glioblastoma, meningioma	Focal deficits, ICP, seizures, personality change
Hematologic	Leukemia, lymphoma, myeloma	Bone marrow failure, immunodeficiency, organ infiltration
Skin	Melanoma, SCC, BCC	Local destruction, metastasis (melanoma)