Less common disorders:H
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| DISEASE AND CAUSES | PATHOPHYSIOLOGY | SIGNS AND SYMPTOMS |
| Hand, foot, and mouth disease | ||
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RNA virus produces fever and vesicles in the oropharynx and on the hands and feet. |
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| Hermansky-Pudlak syndrome | ||
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A lipid-like material accumulates in the cells of the reticuloendothelial system, resulting in platelet dysfunction and pulmonary fibrosis. |
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| Herpangina | ||
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RNA virus produces fever and vesicles in the posterior portion of the oropharynx. |
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| Hiatal hernia | ||
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Weakening of anchors from the gastroesophageal junction to the diaphragm or increased abdominal pressure allow herniation of part of the stomach through the esophageal hiatus in the diaphragm. |
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| Hirsutism | ||
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Minoxidil, androgenic steroids, or testosterone ingestion can cause signs of:
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| Hyperbilirubinemia | ||
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Massive destruction of RBCs causes high levels of bilirubin in the blood. Bilirubin is derived from hemoglobin in RBCs. |
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| Hypersplenism | ||
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Spleen growth may be stimulated by an increase in its workload, such as the trapping and destroying of abnormal RBCs. |
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