Lichen planopilaris

Lichen planopilaris (LPP) is a rare cutaneous variant of lichen planus (see this term) which affects hair follicles. It may occur on its own or in association with more common forms of lichen planus, usually classical type and/or oral lichen planus.

Hydrops fetalis

Hydrops fetalis is a severe and challenging fetal condition usually defined as the excessive accumulation of fetal fluid within the fetal extravascular compartments and body cavities that manifests as edema, pleural and pericardial effusion and ascites. It is the...

Hawkinsinuria

Hawkinsinuria is an inborn error of tyrosine metabolism characterized by failure to thrive, persistent metabolic acidosis, fine and sparse hair, and excretion of the unusual cyclic amino acid metabolite, hawkinsin ((2-l-cystein-S-yl,...