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Items: 4

1.

RENAL CARCINOMA, CHROMOPHOBE, SOMATIC

MedGen UID:
865514
Concept ID:
C4017077
Finding
2.

Pneumothorax, primary spontaneous

Birt-Hogg-Dube syndrome (BHD; 135150), which is characterized by spontaneous pneumothorax as well as by fibrofolliculomas of the skin and increased risk of renal and colonic tumors, is caused by mutation in the FLCN gene. Gunji et al. (2007) suggested that isolated primary spontaneous pneumothorax associated with FLCN mutations may be part of the clinical spectrum of BHD, showing incomplete disease penetrance. Spontaneous pneumothorax is a complication of certain heritable disorders of connective tissue, particularly the Marfan syndrome (154700) and the Ehlers-Danlos syndrome (see, e.g., 130000). Pulmonary bullae can also occur with alpha-1-antitrypsin deficiency (613490). [from OMIM]

MedGen UID:
357445
Concept ID:
C1868193
Disease or Syndrome
3.

colorectal cancer, somatic

MedGen UID:
331630
Concept ID:
C1833970
Neoplastic Process
4.

Multiple fibrofolliculomas

The clinical characteristics of Birt-Hogg-Dubé syndrome (BHDS) include cutaneous manifestations (fibrofolliculomas, trichodiscomas/angiofibromas, perifollicular fibromas, and acrochordons), pulmonary cysts/history of pneumothorax, and various types of renal tumors. Disease severity can vary significantly even within the same family. Skin lesions typically appear during the third and fourth decades of life and typically increase in size and number with age. Lung cysts are mostly bilateral and multifocal; most individuals are asymptomatic but at high risk for spontaneous pneumothorax. Individuals with BHDS are at a sevenfold increased risk for renal tumors that are typically bilateral and multifocal and usually slow growing; median age of tumor diagnosis is 48 years. The most common renal tumors are a hybrid of oncocytoma and chromophobe histologic cell types (so-called oncocytic hybrid tumor) and chromophobe histologic cell types. Some families have renal tumor and/or autosomal dominant spontaneous pneumothorax without cutaneous manifestations. [from GeneReviews]

MedGen UID:
91070
Concept ID:
C0346010
Disease or Syndrome
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