Ichthyosis (X-linked)

Required sample material

Cytogenetic examination:
5-7 ml heparinised whole blood
NH4-Heparinate S-Monovettes (Sarstedt REF 01.1603) or disposable syringes with approx. 20 to max. 200 µl heparin sodium (5000 I.U./ml) (final concentration 10 to max.100 I.U. heparin/ml sample material). Please do not send Li heparin blood or EDTA blood!

Molecular cytogenetic analysis:
Heparin blood (adults 5-7 ml, children approx. 3-5 ml, newborns 1-2 ml)
NH4 heparinate S monovettes (Sarstedt REF 01.1603) or disposable syringes with approx. 20 to max. 200 µl heparin sodium (5000 I.U./ml) (final concentration 10 to max.100 I.U. heparin/ml sample material). Please do not send Li heparin blood or EDTA blood!
Alternatively: cell suspension with a high mitotic index in methanol/glacial acetic acid.

Sample dispatch

Material for cytogenetic and molecular cytogenetic analyses should be sent uncooled by express mail . The sample transport time is of great importance, as cell cultures almost always have to be created. The test material should reach the laboratory within 24 hours.

Please send the samples to the following address:

Heidelberg University Hospital
Institute of Human Genetics

Laboratory for Molecular Cytogenetics/ or
Cytogenetic Laboratory

Im Neuenheimer Feld 366
69120 Heidelberg

Sample labelling

Please label each sample container clearly with the surname, first name and date of birth of the patient and use our request forms.

The request forms are structured in such a way that we have all the necessary information about the patient and the patient consent form (where required) for the examination order.

Please complete the request forms carefully to avoid unnecessary enquiries and please understand that we cannot accept unlabelled sample containers.

Please bear in mind that we can only carry out genetic analyses if we have the patient's written consent!

Request form for cytogenetics and FISH diagnostics

Further information

OMIM: 308100

Test method:
Cytogenetic and molecular cytogenetic analyses

Sensible procedure:
Microdeletions in Xp22.32 (STS gene) can only be detected using FISH diagnostics. However, we recommend in all cases that an additional chromosome analysis is carried out to exclude structural changes.

Processing time:
Molecular cytogenetic analysis: 1-2 weeks after receipt of order

Contact persons