25,729 articles
Familial multiple discoid fibromas
Familial multiple discoid fibromas, also known as familial multiple trichodiscomas, is a rare autosomal dominant skin disorder causing benign whitish papules on the face and ears beginning in childhood.
Familial multiple lipomatosis
Familial multiple lipomatosis (FML), a rare autosomal dominant disorder of multiple painless encapsulated subcutaneous lipomas on trunk and limbs, sparing head and neck; distinct from Madelung disease, onset typically in the third decade.
Familial or sporadic hemiplegic migraine
Familial or sporadic hemiplegic migraine (FHM, SHM) is a rare migraine-with-aura subtype featuring reversible one-sided motor weakness; familial when a first- or second-degree relative is affected, sporadic otherwise, linked to CACNA1A, ATP1A2, and SCN1A.
Familial ossifying fibroma
Familial ossifying fibroma (ORPHA:435329, OMIM 137575), also called hereditary or familial juvenile ossifying fibroma, is a rare autosomal dominant disease with multifocal benign fibro-osseous jaw lesions, mixed radiodense/radiolucent appearance, long-bone anomalies, and considerable recurrence after incomplete surgery.
Familial osteochondritis dissecans
Familial osteochondritis dissecans is a rare genetic skeletal disorder caused by mutations in the ACAN gene, inherited dominantly, that produces joint lesions, short stature, and early osteoarthritis.
Familial pancreatic carcinoma
Familial pancreatic carcinoma (familial pancreatic cancer, FPC): pancreatic cancer clustering in families with at least two affected first-degree relatives without a known hereditary syndrome; mostly autosomal dominant, BRCA2/PALB2/ATM in some families, risk up to 32-fold with three or more affected relatives, screened by EUS and MRI.
Familial papillary or follicular thyroid carcinoma
Familial papillary or follicular thyroid carcinoma, or familial nonmedullary thyroid cancer (FNMTC), is differentiated thyroid cancer in two or more first-degree relatives; mostly nonsyndromic, polygenic, possibly more aggressive than sporadic disease.
Familial Parkinson disease
Familial Parkinson disease (ICD-11 8A00.01), hereditary form of PD, about 15% of cases have family history, 5-10% monogenic; caused by LRRK2, SNCA, PRKN, PINK1, PARK7 variants with dominant or recessive inheritance.
Familial paroxysmal ataxia
Familial paroxysmal ataxia, or episodic ataxia (EA), rare autosomal dominant channelopathies with recurrent cerebellar ataxia attacks; EA1 (KCNA1, myokymia) and EA2 (CACNA1A, nystagmus) most common; treated with acetazolamide and 4-aminopyridine.
Familial partial lipodystrophy, Dunnigan type
Familial partial lipodystrophy, Dunnigan type (FPLD2), also called Dunnigan syndrome, is a rare genetic disorder in which fat is lost from the limbs and trunk and accumulates on the face and neck.
Familial partial lipodystrophy, Köbberling type
Familial partial lipodystrophy, Köbberling type (FPLD1, Köbberling syndrome, OMIM 608600) is a very rare lipodystrophy with limb-only fat loss, truncal obesity, no identified gene, Köb index >3.477, and severe insulin resistance.
Familial patent arterial duct
Familial patent arterial duct (ORPHA:466729, OMIM 607411/617035/617039) is a rare autosomal dominant, non-syndromic congenital anomaly in which isolated patent ductus arteriosus recurs in several family members.
Familial peripheral male-limited precocious puberty
Familial peripheral male-limited precocious puberty (FMPP, testotoxicosis, OMIM 176410) is a rare autosomal dominant disorder causing puberty at 2-5 years in boys via activating LHCGR mutations; female carriers are unaffected.
Familial platelet disorder with associated myeloid malignancy
Familial platelet disorder with associated myeloid malignancy (FPDMM, RUNX1-FPD, FPD/AML) is a rare autosomal dominant RUNX1 germline disorder causing thrombocytopenia, platelet dysfunction, bleeding, and a 25-50% lifetime risk of AML, MDS, or lymphoid leukemia.
Familial progressive hyper- and hypopigmentation
Familial progressive hyper- and hypopigmentation (FPHH, OMIM 145250), also called melanosis universalis hereditaria, is a rare autosomal dominant skin pigmentation disorder with progressive blotchy hyperpigmentation, café-au-lait spots, and hypopigmented macules, caused by KITLG gain-of-function variants with genetic heterogeneity.
Familial progressive hyperpigmentation
Familial progressive hyperpigmentation (FPH, melanosis universalis hereditaria, carbon baby syndrome) is a rare autosomal dominant genodermatosis with hyperpigmented patches from birth, linked to KITLG mutations.
Familial pseudohyperkalemia
Familial pseudohyperkalemia (FP, ORPHA:90044, OMIM 609153) is a rare autosomal dominant ABCB6-related red cell trait causing falsely high potassium in blood samples stored below 37°C; patients are asymptomatic and need no treatment.
Familial reactive perforating collagenosis
Familial reactive perforating collagenosis (FRPC, OMIM 216700, ORPHA:79147) is a very rare genetic skin disease with transepidermal elimination of collagen, causing recurrent self-healing keratotic papules from childhood; distinct from the adult acquired form.
Familial renal glucosuria
Familial renal glucosuria (familial renal glycosuria, SGLT2 deficiency, OMIM 233100) is a rare SLC5A2 disorder causing persistent glucosuria with normal blood glucose, usually benign, codominant inheritance.
Familial retinal arterial macroaneurysm
Familial retinal arterial macroaneurysm (FRAM), also called RAMSVPS, is a rare autosomal recessive disorder causing retinal artery aneurysms and pulmonic stenosis, first described in Saudi children in 2002 and caused by IGFBP7 mutations.
Familial short stature
Familial short stature: a normal-variant growth pattern in which a short child grows at a normal rate with short parents, normal bone age, and adult height matching midparental height; distinguished from constitutional delay.
Familial spontaneous pneumothorax
Familial spontaneous pneumothorax (FSP, OMIM 173600): rare autosomal dominant genetic disease causing pleural air accumulation with family history, no lung disease or trauma; FLCN/Birt-Hogg-Dubé in 17-50% of families; 10-12% of spontaneous pneumothorax cases.
Familial steroid-resistant nephrotic syndrome with adrenal insufficiency
Familial steroid-resistant nephrotic syndrome with adrenal insufficiency, also called SPLIS, NPHS14, or SGPL1 deficiency, is an autosomal recessive sphingolipidosis causing steroid-resistant nephrotic syndrome, primary adrenal insufficiency, hypothyroidism, immunodeficiency, and neurologic features.
Familial supernumerary nipples
Familial supernumerary nipples (isolated polythelia, ORPHA:2456, OMIM 163700) is a rare autosomal dominant breast malformation with extra nipples along the milk line in multiple family members, occasionally linked to genitourinary malformations and malignancies.
Familial temporal lobe epilepsy
Familial temporal lobe epilepsy (FTLE, FMTLE, ORPHA:98819) is a genetic focal epilepsy with benign déjà vu or autonomic seizures, adolescent onset, complex or autosomal dominant inheritance, normal MRI, and good drug response.
Familial thoracic aortic aneurysm and aortic dissection
Familial thoracic aortic aneurysm and aortic dissection (FTAAD), also called nonsyndromic heritable thoracic aortic disease, is an autosomal dominant predisposition to aortic aneurysm and dissection involving 11 validated genes including ACTA2, TGFBR2, and MYH11, with reduced penetrance and first-degree relative screening recommended.
Familial thrombocytosis
Familial thrombocytosis, also called hereditary thrombocythemia, is a rare autosomal dominant or X-linked recessive disorder with sustained platelets over 450 x 10^9/L caused by germline THPO or MPL mutations, treated with low-dose aspirin.
Familial thyroid dyshormonogenesis
Familial thyroid dyshormonogenesis, also called thyroid dyshormonogenesis (ORPHA:95716), is inherited primary congenital hypothyroidism from defects in thyroid hormone synthesis genes such as TPO, DUOX2, TG, SLC5A5, SLC26A4, DUOXA2, and IYD, usually autosomal recessive, often goitrous, treated with levothyroxine.
Familial tumoral calcinosis
Familial tumoral calcinosis (FTC, OMIM 211900) is a rare autosomal recessive disorder causing juxta-articular calcified masses; hyperphosphatemic forms result from FGF23, GALNT3, or KL mutations disrupting phosphate regulation.
Familial vesicoureteral reflux
Familial vesicoureteral reflux, also called familial VUR, is genetic clustering of vesicoureteral reflux within families; urine flows back from bladder to kidney. Affects 27.4% of siblings and 35.7% of offspring; no single causative gene identified.