Anemia, and Sensory neuropathy

Imerslund-Grasbeck syndrome is a form of congenital megaloblastic anemia due to vitamin B12 deficiency caused by a defect in the vitamin B12/intrinsic factor receptor. See also congenital pernicious anemia due to a defect in intrinsic factor (OMIM ).Adult pernicious anemia (OMIM ) is a distinct autoimmune disorder associated with plasma autoantibodies to gastric parietal cells or gastric intrinsic factor. In these cases, there is gastric atrophy and a relatively high frequency of associated thyroiditis and myxedema.

MEGALOBLASTIC ANEMIA 1 Is also known as pernicious anemia, juvenile, due to selective intestinal malabsorption of vitamin b12, with proteinuria|mga1|enterocyte intrinsic factor receptor, defect of|enterocyte cobalamin malabsorption|igs|imerslund-grasbeck syndrome

• Anemia
• Dementia
• Proteinuria
• Paralysis
• Autoimmunity

SOURCES: OMIM ORPHANET MENDELIAN

Porphyria of doss or deficiency of delta-aminolevulinic acid dehydratase (DALAD) is an extremely rare form of acute hepatic porphyria (see this term) characterized by neuro-visceral attacks without cutaneous manifestations.

PORPHYRIA DUE TO ALA DEHYDRATASE DEFICIENCY Is also known as porphyria due to alad deficiency|doss porphyria|delta-aminolevulinate dehydratase deficiency|alad porphyria|porphyria, alad|porphyria of doss|alad deficiency|porphyria due to delta-aminolevulinate dehydratase deficiency|porphobilinogen synthase deficiency

• Seizures
• Generalized hypotonia
• Failure to thrive
• Muscular hypotonia
• Pain

SOURCES: OMIM ORPHANET MESH MENDELIAN

Erythropoietic protoporphyria-1 is an inborn error of porphyrin metabolism caused by decreased activity of the enzyme ferrochelatase, the terminal enzyme of the heme biosynthetic pathway, which catalyzes the insertion of iron into protoporphyrin to form heme. EPP is characterized clinically by photosensitivity to visible light commencing in childhood, and biochemically by elevated red cell protoporphyrin levels (Todd, 1994). Genetic Heterogeneity of Erythropoietic ProtoporphyriaAlso see X-linked erythropoietic protoporphyria (XLEPP ), caused by mutation in the ALAS2 gene (OMIM ) on chromosome Xp11, and EPP2 (OMIM ), caused by mutation in the CLPX gene (OMIM ) on chromosome 15q22.

PROTOPORPHYRIA, ERYTHROPOIETIC, 1; EPP1 Is also known as ferrochelatase deficiency|protoporphyria, erythropoietic|heme synthetase deficiency|erythrohepatic protoporphyria|epp

• Pain
• Anemia
• Edema
• Thrombocytopenia
• Jaundice

SOURCES: OMIM MENDELIAN

Congenital intrinsic factor deficiency (IFD) is a rare disorder of vitamin B12 (cobalamin) absorption that is characterized by megaloblastic anemia and neurological abnormalities.

CONGENITAL INTRINSIC FACTOR DEFICIENCY Is also known as intrinsic factor deficiency|ifd|hereditary juvenile megaloblastic anemia due to intrinsic factor deficiency|congenital pernicious anemia|gastric intrinsic factor deficiency|pernicious anemia, congenital, due to defect of intrinsic factor

• Intellectual disability
• Failure to thrive
• Anemia
• Fatigue
• Abnormality of metabolism/homeostasis

SOURCES: ORPHANET OMIM MENDELIAN

Paroxysmal exertion-induced dyskinesia (PED) is a form of paroxysmal dyskinesia (see this term), characterized by painless attacks of dystonia of the extremities triggered by prolonged physical activities.

PAROXYSMAL EXERTION-INDUCED DYSKINESIA Is also known as ped with or without epilepsy and/or hemolytic anemia|paroxysmal exertion-induced dystonia with or without epilepsy and/or hemolytic anemia|dyt18|dystonia 18|ped|paroxysmal exercise-induced dyskinesia with or without epilepsy and/or hemolytic anemia

• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia
• Microcephaly

SOURCES: ORPHANET OMIM MESH MENDELIAN

Ss blood group antigens reside on the red-cell glycoprotein GYPB. The S and s antigens result from a polymorphism at amino acid 29 of GYPB, where S has met29 and s has thr29. The U antigen refers to a short extracellular sequence in GYPB located near the membrane. GYPB, glycophorin A (GYPA ), and glycophorin E (GYPE ) are closely linked on chromosome 4q31. Antigens of the MN blood group (OMIM ) reside on GYPA. The M and N antigens differ at amino acids 1 and 5 of GYPA, where M is ser-ser-thr-thr-gly, and N is leu-ser-thr-thr-glu. The N terminus of GYPB is essentially identical to that of GYPA except that it always expresses the N antigen, denoted 'N' or N-prime. Recombination and gene conversion between GYPA, GYPB, and GYPE lead to hybrid glycophorin molecules and generation of low-incidence antigens. Thus, the MN and Ss blood groups are together referred to as the MNSs blood group system (see {111300}). Recombination results in 3 glycophorin-null phenotypes: En(a-) cells lack GYPA due to recombination between GYPA and GYPB; GYPB-negative (S-s-U-) cells lack GYPB due to recombination in GYPB; and M(k) cells (M-N-S-s-U-) lack both GYPA and GYPB due to recombination between GYPA and GYPE. Individuals with glycophorin-null phenotypes have decreased sialic acid content and increased resistance to malarial infection (see {611162}). GYPA and GYPB are not essential for red-cell development or survival, and GYPA- and GYPB-null phenotypes are not associated with anemia or altered red-cell function (review by Cooling, 2015).

BLOOD GROUP, SS; SS Is also known as ss blood group

• Neoplasm
• Anemia

SOURCES: OMIM MENDELIAN

Acute intermittent porphyria is the most frequent and the most severe form of the acute hepatic porphyrias (see this term). It is characterized by the occurrence of neuro-visceral attacks without cutaneous manifestations.

ACUTE INTERMITTENT PORPHYRIA Is also known as ups deficiency|porphyria, swedish type|pbgd deficiency|porphobilinogen deaminase deficiency|uroporphyrinogen synthase deficiency

• Intellectual disability
• Seizures
• Global developmental delay
• Muscle weakness
• Pain

SOURCES: OMIM ORPHANET MESH MENDELIAN

Hereditary coproporphyria is a form of acute hepatic porphyria (see this term) characterized by the occurrence of neuro-visceral attacks and, more rarely, by the presence of cutaneous lesions.

HEREDITARY COPROPORPHYRIA Is also known as cpox deficiency|cpx deficiency|coproporphyrinogen oxidase deficiency|cpo deficiency

• Seizures
• Muscle weakness
• Pain
• Anemia
• Hypertension

SOURCES: MESH ORPHANET OMIM MENDELIAN

Multiple myeloma (MM) is a malignant tumor of plasma cell characterized by overproduction of abnormal plasma cells in the bone marrow and skeletal destruction. The clinical features are bone pain, renal impairment, immunodeficiency, anemia and presence of abnormal immunoglobulins (Ig).

MULTIPLE MYELOMA Is also known as plasma cell myeloma|myelomatosis|kahler's disease|medullary plasmacytoma

• Neoplasm
• Anemia
• Fatigue
• Splenomegaly
• Weight loss

SOURCES: ORPHANET OMIM MENDELIAN

Cronkhite-Canada syndrome (CCS) is a rare gastrointestinal (GI) polyposis syndrome characterized by the association of non-hereditary GI polyposis with the cutaneous triad of alopecia, nail changes and hyperpigmentation.

CRONKHITE-CANADA SYNDROME Is also known as gastrointestinal polyposis-skin pigmentation-alopecia-fingernail changes syndrome|gastrointestinal polyposis-ectodermal changes syndrome|cronkhite-canada syndrome

• Seizures
• Neoplasm
• Muscle weakness
• Pain
• Cataract

SOURCES: MESH OMIM ORPHANET MENDELIAN