No abstract available.
Follicular Cyst ; Hair* ; Treatment Outcome ; Tretinoin*

The Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is comprised of vaginal atresia with other variable Mullerian duct abnormalities. Its features include an absent or very short vagina and a uterus that can be absent or immaturely formed. Female with MRKH syndrome have functioning ovaries, normal external genitalia and the typical 46, XX, karyotype. MRKH syndrome is the second most common cause of primary amenorrhea, usually remains undetected until the patient presents with primary amenorrhea despite normal sexual female development. We report a case of MRKH syndrome, associated with ovarian follicular cyst, in a 14-years-old girl who visited for primary amenorrhea and sexual precosity.
Amenorrhea* ; Female ; Follicular Cyst ; Genitalia ; Humans ; Karyotype ; Ovary ; Uterus ; Vagina

A pigmented follicular cyst typically presents as an asymptomatic, solitary papule on head and neck in adult men. The histologic features of pigmented follicular cysts are cross-sectioned, terminally-differentiated hair shafts in an epidermal cyst. There are no sebaceous lobules or other appendages within the wall or in close proximity. We herein report a case of pigmented follicular cyst of the axilla in a 31-year-old man.
Adult ; Axilla ; Epidermal Cyst ; Follicular Cyst ; Hair ; Head ; Humans ; Male ; Neck

Pigmented follicular cyst is a rare disorder which typically presents as a pigmented papule on the head or neck. Histologically, it exhibits terminally differentiated, pigmented hair shafts in an epidermoid cyst. It was described as a variant of epidermal cyst originating from the infundibular epidermis of pilosebaceous unit. We report a case of pigmented follicular cyst on the occipital scalp in a 7-year-old girl with typical histologic features.
Child ; Epidermal Cyst ; Epidermis ; Female ; Follicular Cyst* ; Hair ; Head ; Humans ; Neck ; Scalp

We report a pigmented follicular cyst (PFC) in a 40-year-old male manifestated clinically as pigmented nevus. Histopathologic findings revealed an infundibular cyst in the mid dermis containing a small amount of keratinous material. The cystic wall consisted of four or five layers of squamous epithelium with a granular layer with abundant keratohyaline granules and the cyst wall contained one hair follicle. It must be differentiated from other pigmented lesions of over-lying skin such as eruptive vellus hair cyst, apocrine hydrocystoma and melanocytic nevus coexistance of an epidermoid cyst. Surgical excision and histopathological examination are necessary for an accurate diagnosis in pigmented lesions.
Adult ; Dermis ; Diagnosis ; Epidermal Cyst ; Epithelium ; Follicular Cyst* ; Hair ; Hair Follicle ; Humans ; Male ; Nevus, Pigmented ; Skin

On H1 MRS (magnetic resonance spectroscopy), malignant tumors show higher concentration of metabolite than benign lesions. Lactate double peak was detected in malignant tumor and endometriosis, and more prominent high concentration was demonstrated in endometriosis. Tuboovarian abscesses and salpingitis do not show prominent peak. Dermoid cysts show high levels of lipid peak. Paratubal cyst and follicular cyst can be showed the lipid peak, however, the concentration of lipid is lower than that of dermoid cyst. H1 MRS of ovarian cystic lesions can give valuable information about the presence of metabolites of ovarian cystic lesions.
Abscess ; Dermoid Cyst ; Endometriosis ; Female ; Follicular Cyst ; Lactic Acid ; Magnetic Resonance Spectroscopy* ; Ovarian Cysts ; Ovary ; Parovarian Cyst ; Salpingitis

Favre-Racouchot syndrome(nodular elastosis with cysts and comedones) is a peculiar complication of solar elastosis in which comedones, follicular cysts, and nodules of altered elastic tissue occur mainly sround the orbits, on the cheeks, on snd around the nose, and oceasionally in other exposed areas, but sornetimes on the neck or behind the ears. We present a typical case of the Favre-Racouchot syndrome in a 66 year old man with maxillary cancer. The patient had numerous yellowish cysts and black topped comedones located on the forehead, around the orbits and the nose, on the neck, and also behind the ears of 5 years duration. The histopathology of the lesion showed dilated pilosebaceous openings and epitheliaI lined cysts filled with layered keratin in addition to pronounced solar elastosis.
Aged ; Cheek ; Ear ; Elastic Tissue ; Facial Dermatoses* ; Follicular Cyst ; Forehead ; Humans ; Neck ; Nose ; Orbit

PURPOSE: The purpose of this study is to evaluate the characteristic MR findings of sacrococcygeal pilonidal sinus. MATERIALS AND METHODS: Eight MR images of pathologically proven sacrococcygeal pilonidal sinus were retrospectively reviewed [M: F = 7: 1; age range 9-41 (median, 17) years]. In all cases, a sacrococcygeal mass was present. Five of the eight patients experienced pain, and in three was discharge. MR findings were evaluated with regard to the location and extent of the lesion, and the presence of sinus or cyst, and the results were compared with the pathologic findings. RESULT: According to the clinical manifestations, each case was assigned to one of four groups: the first type (n= 3) showed dermal thickening with subcutaneous fatty infiltration of the ipsilateral natal cleft while pathologically, a follicular cyst with dermal fibrosis and multiple fatty lobules with fibrous septa were found to be present. In the second type (n = 3), fluid was observed in the sinus tract, while the pathologic findings demonstrated the presence of an abscess in this area. In the third type (n = 1), a cystic lesion with airfluid level was present; pathologically, an abscess was revealed. The fourth type (n = 1) showed only a low signal intensity sinus tract on both T1 and T2-weighted images, while the pathologic findings indicated the presence of hairs and follicles within the tract. CONCLUSION: The MR findings of sacrococcygeal pilonidal sinus depend on the clinical manifestation and include subcutaneous fatty infiltration, a sinus tract with or without fluid retention, and a cystic lesion with air fluid level. These findings could be helpful for differentiating between this and other sacrococcygeal lesions.
Abscess ; Fibrosis ; Follicular Cyst ; Hair ; Humans ; Magnetic Resonance Imaging* ; Pilonidal Sinus* ; Retrospective Studies

An eruptive vellus hair cyst is an uncommon, benign, epithelial tumor with hair differentiation. Clinically, it presents as asymptomatic, flesh-colored to yellowish, follicular papules, 1 to 4 mm in diameter, most commonly on the chest. It is usually seen in children and young adults but may be congenital. Histologically, it shows a middermal cyst lined by squamous epithelium containing keratinous material and vellus hairs. It has a tendency to clear spontaneously but may be persistent. We report a case of congenital eruptive vellus hair cyst in an 11-year-old girl who presented multiple pinhead-sized brown to black papules on her anterior chest since birth.
Child ; Epithelium ; Female ; Follicular Cyst ; Hair* ; Humans ; Parturition ; Thorax ; Young Adult

Pilar sheath acanthoma is a rare, benign follicular hamartoma commonly affecting middle-aged and elderly individuals. It is characterized by a small, solitary, skin-colored papule situated on the head and neck, particularly around the upper lip. The lesion shares some features with trichofolliculoma and dilated pore of Winer, so it should be differentiated from these. Cytokeratin (CK) is a useful marker for studying the origin of epithelial tumors. We report a case of pilar sheath acanthoma which originated from outer root sheath using CK.
Acanthoma ; Aged ; Follicular Cyst ; Hamartoma ; Head ; Humans ; Keratins ; Lip ; Neck ; Neoplasms, Basal Cell ; Skin Neoplasms