porphyria cutanea tarda porphyria cu·ta·ne·a tar·da (kyōō-tā’nē-ə târ’də)
Abbr. PCT Porphyria characterized by liver dysfunction and photosensitive cutaneous lesions, with hyperpigmentation and scleroderma-like changes in skin, neurologic manifestations, and porphyrinuria. Also called symptomatic porphyria.
[pawr-fuh-rin] /ˈpɔr fə rɪn/ noun, Biochemistry. 1. a dark red, photosensitive pigment consisting of four pyrrole rings linked by single carbon atoms: a component of chlorophyll, heme, and vitamin B 1 2 . /ˈpɔːfɪrɪn/ noun 1. any of a group of pigments occurring widely in animal and plant tissues and having a heterocyclic structure formed […]
porphyrinogen por·phy·rin·o·gen (pôr’fə-rĭn’ə-jən, -jěn’) n. Any of the intermediates in the biosynthesis of heme.
porphyrinuria por·phy·ri·nu·ri·a (pôr’fə-rə-nur’ē-ə, -nyur’-) n. The excretion of abnormal concentrations of porphyrins and related compounds in the urine. Also called purpurinuria.
[pawr-fuh-rit-ik] /ˌpɔr fəˈrɪt ɪk/ adjective, Petrology. 1. of, pertaining to, containing, or resembling , its texture, or its structure. /ˌpɔːfɪˈrɪtɪk/ adjective 1. (of rocks) having large crystals in a fine groundmass of minerals 2. consisting of porphyry porphyry (pôr’fə-rē) An igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix. porphyritic […]