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9 Possible Causes for Medullated and Pigmented Hair Follicles

  • Amaurosis-Hypertrichosis Syndrome

    Lanugo refers to long and unmedullated hairs; vellous hairs are unmedullated, short, soft and lightly pigmented and are often seen on the face of infants; terminal hairs are[link.springer.com] […] produced by follicles and appear medullated, dense and varying in length, depending on the area [ 3 , 4 , 5 , 6 , 7 ].[link.springer.com] The clinical pattern of hypertrichosis can vary in individuals, ranging from lanugo to vellous and terminal hairs.[link.springer.com]

  • Hypertrichosis

    In hirsutism (male pattern hair growth in a female or child), the hair is of the adult type—thick, coarse, pigmented, and medullated.[doi.org] It appears mostly in the body regions furnishing androgen-sensitive follicles, such as on the beard and moustache area and the chest, and is due to androgenic action, either[doi.org]

  • Hereditary Gingival Fibromatosis

    Histologic analysis of a forearm biopsy demonstrated that the hairs were of the terminal type, since they were medullated and pigmented, and penetrated deep into the dermis[omim.org] Patient hair follicles were thicker than those of controls, and anagen hairs were present in the patient's biopsy, whereas none were detected in control skin biopsies.[omim.org] Hair overgrowth progressed on her face, trunk, eyebrows, and eyelashes, and her scalp hair as well as body hair was long and coarse.[omim.org]

  • Gingival Fibromatosis-Hypertrichosis Syndrome

    It can be easily differentiated from the softer non-medullated lanugo and non-pigmented variably medullated vellus hair. [4] Other forms of congenital syndromes with primary[ijdvl.com] […] that produces them and the follicle penetrates into the reticular dermis.[ijdvl.com] […] follicle density and abnormal vellus to terminal switch mechanism in normal vellus hair bearing areas. [2] Terminal hair is medullated, wider than the inner root sheath of the follicle[ijdvl.com]

  • Congenital Generalized Hypertrichosis

    It can be easily differentiated from the softer non-medullated lanugo and non-pigmented variably medullated vellus hair. [4] Other forms of congenital syndromes with primary[ijdvl.com] […] that produces them and the follicle penetrates into the reticular dermis.[ijdvl.com] […] follicle density and abnormal vellus to terminal switch mechanism in normal vellus hair bearing areas. [2] Terminal hair is medullated, wider than the inner root sheath of the follicle[ijdvl.com]

  • Acquired Hypertrichosis Lanuginosa

    […] produced by follicles and appear medullated, dense and varying in length, depending on the area [ 3 – 7 ].[ijponline.biomedcentral.com] Lanugo refers to long and unmedullated hairs; vellous hairs are unmedullated, short, soft and lightly pigmented and are often seen on the face of infants; terminal hairs are[ijponline.biomedcentral.com] The clinical pattern of hypertrichosis can vary in individuals, ranging from lanugo to vellous and terminal hairs.[ijponline.biomedcentral.com]

  • Anonychia Congenita Totalis

    Testosterone- Face, trunk and extremities increases hair follicle anagen phase (active) and increases also hair growth rate, thickness, medullation and pigmentation.[embryology.med.unsw.edu.au] Estrogens- (1 beta-estradiol, E2) involved in skin physiology and are potent hair growth modulators.[embryology.med.unsw.edu.au]

  • Congenital Generalized Fibromatosis

    It can be easily differentiated from the softer non-medullated lanugo and non-pigmented variably medullated vellus hair. [4] Other forms of congenital syndromes with primary[ijdvl.com] […] that produces them and the follicle penetrates into the reticular dermis.[ijdvl.com] […] follicle density and abnormal vellus to terminal switch mechanism in normal vellus hair bearing areas. [2] Terminal hair is medullated, wider than the inner root sheath of the follicle[ijdvl.com]

  • Familial Isolated Trichomegaly

    […] produced by follicles and appear medullated, dense and varying in length, depending on the area [ 3 – 7 ].[ijponline.biomedcentral.com] Lanugo refers to long and unmedullated hairs; vellous hairs are unmedullated, short, soft and lightly pigmented and are often seen on the face of infants; terminal hairs are[ijponline.biomedcentral.com] The clinical pattern of hypertrichosis can vary in individuals, ranging from lanugo to vellous and terminal hairs.[ijponline.biomedcentral.com]

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