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Severe congenital hypochromic anemia with ringed sideroblasts(AHMIO2)

MedGen UID:
815250
Concept ID:
C3808920
Disease or Syndrome
Synonym: Hypochromic microcytic anemia with iron overload 2
Modes of inheritance:
Unknown inheritance
MedGen UID:
989040
Concept ID:
CN307042
Finding
Source: Orphanet
Hereditary clinical entity whose mode of inheritance is unknown.
 
Gene (location): STEAP3 (2q14.2)
 
Monarch Initiative: MONDO:0014094
OMIM®: 615234
Orphanet: ORPHA300298

Definition

STEAP3/TSAP6-related sideroblastic anemia is a very rare severe non-syndromic hypochromic anemia, which is characterized by transfusion-dependent hypochromic, poorly regenerative anemia, iron overload, resembling non-syndromic sideroblastic anemia (see this term) except for increased erythrocyte protoporphyrin levels. [from ORDO]

Clinical features

From HPO
Azoospermia
MedGen UID:
2150
Concept ID:
C0004509
Disease or Syndrome
Absence of any measurable level of sperm,whereby spermatozoa cannot be observed even after centrifugation of the semen pellet.
Growth delay
MedGen UID:
99124
Concept ID:
C0456070
Pathologic Function
A deficiency or slowing down of growth pre- and postnatally.
Hepatomegaly
MedGen UID:
42428
Concept ID:
C0019209
Finding
Abnormally increased size of the liver.
Elevated hepatic iron concentration
MedGen UID:
868497
Concept ID:
C4022891
Finding
An increased level of iron in liver tissues.
Anemia
MedGen UID:
1526
Concept ID:
C0002871
Disease or Syndrome
A reduction in erythrocytes volume or hemoglobin concentration.
Sideroblastic anemia
MedGen UID:
8067
Concept ID:
C0002896
Disease or Syndrome
Sideroblastic anemia results from a defect in the incorporation of iron into the heme molecule. A sideroblast is an erythroblast that has stainable deposits of iron in cytoplasm (this can be demonstrated by Prussian blue staining).
Poikilocytosis
MedGen UID:
67451
Concept ID:
C0221281
Finding
The presence of abnormally shaped erythrocytes.
Hypochromia
MedGen UID:
87187
Concept ID:
C0333912
Finding
A qualitative impression that red blood cells have less color than normal when examined under a microscope, usually related to a reduced amount of hemoglobin in the red blood cells.
Decreased mean corpuscular volume
MedGen UID:
1375398
Concept ID:
C0855790
Finding
A reduction from normal of the mean corpuscular volume, or mean cell volume (MCV) of red blood cells (usually defined as an MCV below 80 femtoliters).
Splenomegaly
MedGen UID:
52469
Concept ID:
C0038002
Finding
Abnormal increased size of the spleen.
Increased circulating ferritin concentration
MedGen UID:
69130
Concept ID:
C0241013
Finding
Increased concentration of ferritin in the blood circulation.
Elevated transferrin saturation
MedGen UID:
868498
Concept ID:
C4022892
Finding
An above normal level of saturation of serum transferrin with iron.
Pallor
MedGen UID:
10547
Concept ID:
C0030232
Finding
Abnormally pale skin.
Cafe-au-lait spot
MedGen UID:
113157
Concept ID:
C0221263
Finding
Cafe-au-lait spots are hyperpigmented lesions that can vary in color from light brown to dark brown with smooth borders and having a size of 1.5 cm or more in adults and 0.5 cm or more in children.
Hypogonadism
MedGen UID:
5711
Concept ID:
C0020619
Disease or Syndrome
A decreased functionality of the gonad.

Term Hierarchy

Follow this link to review classifications for Severe congenital hypochromic anemia with ringed sideroblasts in Orphanet.

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