[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [General pathology](https://durgical.com/en/general-pathology/) › [A to Z](https://durgical.com/en/general-pathology/a-z/) › H # General pathology: H 59 pages - [**Haemangioendothelioma and angiosarcoma** Blood vessels · Lesion](https://durgical.com/en/general-pathology/haemangioendothelioma-and-angiosarcoma/) - [**Haemolysis: extravascular vs intravascular** Red cells and bleeding disorders · Mechanism](https://durgical.com/en/general-pathology/haemolysis-extravascular-vs-intravascular/) - [**Haemophilia A and B** Red cells and bleeding disorders · Lesion](https://durgical.com/en/general-pathology/haemophilia-a-and-b/) - [**Hairy cell leukaemia: BRAF V600E, the dry tap and the red-pulp spleen** White cells, lymph nodes, spleen and thymus · Lesion](https://durgical.com/en/general-pathology/hairy-cell-leukaemia-braf-v600e-the-dry-tap-and-the-red-pulp-spleen/) - [**Hashimoto thyroiditis** Endocrine system · Lesion](https://durgical.com/en/general-pathology/hashimoto-thyroiditis/) - [**Head and neck squamous cell carcinoma** Head and neck · Lesion](https://durgical.com/en/general-pathology/head-and-neck-squamous-cell-carcinoma/) - [**Healing of skin wounds: first and second intention** Tissue repair · Process](https://durgical.com/en/general-pathology/healing-of-skin-wounds-first-and-second-intention/) - [**Health effects of climate change** Environmental pathology · Topic](https://durgical.com/en/general-pathology/health-effects-of-climate-change/) - [**Heart failure: hypertrophy and remodelling** Heart · Mechanism](https://durgical.com/en/general-pathology/heart-failure-hypertrophy-and-remodelling/) - [**Heart transplantation and cardiac devices** Heart · Topic](https://durgical.com/en/general-pathology/heart-transplantation-and-cardiac-devices/) - [**Heavy metals: lead, mercury, arsenic and cadmium** Environmental pathology · Topic](https://durgical.com/en/general-pathology/heavy-metals-lead-mercury-arsenic-and-cadmium/) - [**Helicobacter pylori gastritis** Gastrointestinal tract · Lesion](https://durgical.com/en/general-pathology/helicobacter-pylori-gastritis/) - [**Hemochromatosis: hepcidin, HFE and where iron settles** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hemochromatosis-hepcidin-hfe-and-where-iron-settles/) - [**Hemorrhage: petechiae, purpura, ecchymosis, hematoma, and what blood loss does** Hemodynamic disorders · Lesion](https://durgical.com/en/general-pathology/hemorrhage-petechiae-purpura-ecchymosis-hematoma-and-what-blood-loss-does/) - [**Hepatic inflow disorders: artery, portal vein, sinusoids** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hepatic-inflow-disorders-artery-portal-vein-sinusoids/) - [**Hepatic venous outflow obstruction** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hepatic-venous-outflow-obstruction/) - [**Hepatitis B and D** Liver and gallbladder · Topic](https://durgical.com/en/general-pathology/hepatitis-b-and-d/) - [**Hepatitis C: why it becomes chronic, and its extrahepatic disease** Liver and gallbladder · Topic](https://durgical.com/en/general-pathology/hepatitis-c-why-it-becomes-chronic-and-its-extrahepatic-disease/) - [**Hepatitis viruses A to E: the comparison table** Liver and gallbladder · Topic](https://durgical.com/en/general-pathology/hepatitis-viruses-a-to-e-the-comparison-table/) - [**Hepatoblastoma: the liver tumour of early childhood** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hepatoblastoma-the-liver-tumour-of-early-childhood/) - [**Hepatocellular adenoma: the molecular subtypes and their risks** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hepatocellular-adenoma-the-molecular-subtypes-and-their-risks/) - [**Hepatocellular carcinoma** Liver and gallbladder · Lesion](https://durgical.com/en/general-pathology/hepatocellular-carcinoma/) - [**Hereditary cancer syndromes: the table to know** Neoplasia · Topic](https://durgical.com/en/general-pathology/hereditary-cancer-syndromes-the-table-to-know/) - [**Hereditary colorectal cancer: FAP and Lynch syndrome** Gastrointestinal tract · Topic](https://durgical.com/en/general-pathology/hereditary-colorectal-cancer-fap-and-lynch-syndrome/) - [**Hereditary glomerular disease: Alport, thin GBM, Fabry** Kidney · Lesion](https://durgical.com/en/general-pathology/hereditary-glomerular-disease-alport-thin-gbm-fabry/) - [**Hereditary hyperbilirubinemias** Liver and gallbladder · Topic](https://durgical.com/en/general-pathology/hereditary-hyperbilirubinemias/) - [**Hereditary spherocytosis** Red cells and bleeding disorders · Lesion](https://durgical.com/en/general-pathology/hereditary-spherocytosis/) - [**Herpesvirus encephalitis** Central nervous system · Lesion](https://durgical.com/en/general-pathology/herpesvirus-encephalitis/) - [**High-grade endometrial cancers: serous, clear cell, carcinosarcoma** Female genital tract · Lesion](https://durgical.com/en/general-pathology/high-grade-endometrial-cancers-serous-clear-cell-carcinosarcoma/) - [**High-grade serous carcinoma** Female genital tract · Lesion](https://durgical.com/en/general-pathology/high-grade-serous-carcinoma/) - [**Hirschsprung disease** Gastrointestinal tract · Lesion](https://durgical.com/en/general-pathology/hirschsprung-disease/) - [**Histamine, serotonin, bradykinin and the plasma protein cascades** Inflammation · Mechanism](https://durgical.com/en/general-pathology/histamine-serotonin-bradykinin-and-the-plasma-protein-cascades/) - [**Histiocytic disorders: HLH and Langerhans cell histiocytosis** White cells, lymph nodes, spleen and thymus · Lesion](https://durgical.com/en/general-pathology/histiocytic-disorders-hlh-and-langerhans-cell-histiocytosis/) - [**HIV in the brain and PML** Central nervous system · Lesion](https://durgical.com/en/general-pathology/hiv-in-the-brain-and-pml/) - [**Hodgkin lymphoma** White cells, lymph nodes, spleen and thymus · Lesion](https://durgical.com/en/general-pathology/hodgkin-lymphoma/) - [**Hospital-acquired and aspiration pneumonia, and lung abscess** Lung · Lesion](https://durgical.com/en/general-pathology/hospital-acquired-and-aspiration-pneumonia-and-lung-abscess/) - [**How a single gene causes disease: enzymes, receptors and structural proteins** Genetic disease · Mechanism](https://durgical.com/en/general-pathology/how-a-single-gene-causes-disease-enzymes-receptors-and-structural-proteins/) - [**How an atheroma forms: the response-to-injury model step by step** Blood vessels · Mechanism](https://durgical.com/en/general-pathology/how-an-atheroma-forms-the-response-to-injury-model-step-by-step/) - [**How brain cells react to injury** Central nervous system · Lesion](https://durgical.com/en/general-pathology/how-brain-cells-react-to-injury/) - [**How organs age: normal changes vs disease** Aging · Topic](https://durgical.com/en/general-pathology/how-organs-age-normal-changes-vs-disease/) - [**How septic shock develops** Hemodynamic disorders · Mechanism](https://durgical.com/en/general-pathology/how-septic-shock-develops/) - [**How tumours evade the immune system** Neoplasia · Mechanism](https://durgical.com/en/general-pathology/how-tumours-evade-the-immune-system/) - [**HPV and cervical carcinogenesis** Female genital tract · Mechanism](https://durgical.com/en/general-pathology/hpv-and-cervical-carcinogenesis/) - [**Huntington disease and inherited ataxias** Central nervous system · Lesion](https://durgical.com/en/general-pathology/huntington-disease-and-inherited-ataxias/) - [**Hydatidiform mole: complete vs partial** Female genital tract · Lesion](https://durgical.com/en/general-pathology/hydatidiform-mole-complete-vs-partial/) - [**Hyperaldosteronism: primary and secondary** Endocrine system · Lesion](https://durgical.com/en/general-pathology/hyperaldosteronism-primary-and-secondary/) - [**Hypercoagulable states: inherited and acquired** Hemodynamic disorders · Topic](https://durgical.com/en/general-pathology/hypercoagulable-states-inherited-and-acquired/) - [**Hyperemia and congestion (the nutmeg liver, heart-failure cells)** Hemodynamic disorders · Lesion](https://durgical.com/en/general-pathology/hyperemia-and-congestion/) - [**Hyperplasia: physiologic and pathologic** Cell injury, adaptation and death · Process](https://durgical.com/en/general-pathology/hyperplasia-physiologic-and-pathologic/) - [**Hypersensitivity pneumonitis** Lung · Lesion](https://durgical.com/en/general-pathology/hypersensitivity-pneumonitis/) - [**Hypertension: mechanisms** Blood vessels · Mechanism](https://durgical.com/en/general-pathology/hypertension-mechanisms/) - [**Hypertensive heart disease and cor pulmonale** Heart · Lesion](https://durgical.com/en/general-pathology/hypertensive-heart-disease-and-cor-pulmonale/) - [**Hypertensive nephrosclerosis: benign vs malignant** Kidney · Lesion](https://durgical.com/en/general-pathology/hypertensive-nephrosclerosis-benign-vs-malignant/) - [**Hypertrophic cardiomyopathy** Heart · Lesion](https://durgical.com/en/general-pathology/hypertrophic-cardiomyopathy/) - [**Hypertrophic gastropathies: Ménétrier, Zollinger–Ellison** Gastrointestinal tract · Lesion](https://durgical.com/en/general-pathology/hypertrophic-gastropathies-menetrier-zollinger-ellison/) - [**Hypertrophy: physiologic and pathologic** Cell injury, adaptation and death · Process](https://durgical.com/en/general-pathology/hypertrophy-physiologic-and-pathologic/) - [**Hypopituitarism and posterior pituitary disorders** Endocrine system · Lesion](https://durgical.com/en/general-pathology/hypopituitarism-and-posterior-pituitary-disorders/) - [**Hypothyroidism: causes** Endocrine system · Mechanism](https://durgical.com/en/general-pathology/hypothyroidism-causes/) - [**Hypoxia, ischemia and reperfusion injury** Cell injury, adaptation and death · Mechanism](https://durgical.com/en/general-pathology/hypoxia-ischemia-and-reperfusion-injury/) ## A to Z - [A](https://durgical.com/en/general-pathology/a-z/a/) - [B](https://durgical.com/en/general-pathology/a-z/b/) - [C](https://durgical.com/en/general-pathology/a-z/c/) - [D](https://durgical.com/en/general-pathology/a-z/d/) - [E](https://durgical.com/en/general-pathology/a-z/e/) - [F](https://durgical.com/en/general-pathology/a-z/f/) - [G](https://durgical.com/en/general-pathology/a-z/g/) - H - [I](https://durgical.com/en/general-pathology/a-z/i/) - [J](https://durgical.com/en/general-pathology/a-z/j/) - [K](https://durgical.com/en/general-pathology/a-z/k/) - [L](https://durgical.com/en/general-pathology/a-z/l/) - [M](https://durgical.com/en/general-pathology/a-z/m/) - [N](https://durgical.com/en/general-pathology/a-z/n/) - [O](https://durgical.com/en/general-pathology/a-z/o/) - [P](https://durgical.com/en/general-pathology/a-z/p/) - [R](https://durgical.com/en/general-pathology/a-z/r/) - [S](https://durgical.com/en/general-pathology/a-z/s/) - [T](https://durgical.com/en/general-pathology/a-z/t/) - [U](https://durgical.com/en/general-pathology/a-z/u/) - [V](https://durgical.com/en/general-pathology/a-z/v/) - [W](https://durgical.com/en/general-pathology/a-z/w/) [← General pathology](https://durgical.com/en/general-pathology/) Representative model, for educational purposes only. --- Source: https://durgical.com/en/general-pathology/a-z/h/