Hermansky-Pudlak syndrome
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# Overview
Hermansky-Pudlak Syndrome (HPS) is an inherited disease which results in oculocutaneous albinism (decreased pigmentation), bleeding problems due to a platelet abnormality (platelet storage pool defect), and storage of an abnormal fat-protein compound (lysosomal accumulation of ceroid lipofuscin).
The disease can cause poor functioning of the lungs, intestine, kidneys or heart. The major complication of the disease is pulmonary fibrosis and typically causes death in patients ages 40 - 50 years old. The disorder is common in Puerto Rico, where many of the clinical research studies on the disease have been conducted. Neither the full extent of the disease nor the basic cause of the disease is known. There is no known treatment for HPS.
HPS can be caused by mutations in several genes: HPS1, HPS3, HPS4, HPS5, HPS6 and HPS7. HPS type 2, which includes immunodeficiency in its phenotype, is caused by mutation in the AP3B1 gene. HPS type 7 may result from a mutation in the gene coding for dysbindin protein.

# Historical Perspective

# Classification

# Pathophysiology

# Causes

# Differentiating Hermansky-Pudlak syndrome from Other Diseases

# Epidemiology and Demographics

# Risk Factors

# Screening

# Natural History, Complications, and Prognosis

## Natural History

# Diagnosis

## Diagnostic Criteria

## History and Symptoms

## Physical Examination

## Laboratory Findings

## Imaging Findings

## Other Diagnostic Studies

# Treatment

## Medical Therapy

## Surgery

## Prevention

# Additional Resources
- Di Pietro SM, Dell'Angelica EC (2005). "The cell biology of Hermansky-Pudlak syndrome: recent advances". Traffic. 6 (7): 52533. PMID 15941404..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"\"""\"""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{display:none;font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
- Scheinfeld NS (2003). "Syndromic albinism: a review of genetics and phenotypes". Dermatol Online J. 9 (5): 5. PMID 14996378.
- Huizing M, Gahl WA (2002). "Disorders of vesicles of lysosomal lineage: the Hermansky-Pudlak syndromes". Curr Mol Med. 2 (5): 45167. PMID 12125811.
- Huizing M, Anikster Y, Gahl WA (2000). "Hermansky-Pudlak syndrome and related disorders of organelle formation". Traffic. 1 (11): 82335. PMID 11208073.CS1 maint: Multiple names: authors list (link)
- Hermansky F, Pudlak P (1959). "Albinism associated with hemorrhagic diathesis and unusual pigmented reticular cells in the bone marrow: report of two cases with histochemical studies". Blood. 14 (2): 1629. PMID 13618373.