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At least 37 records · Page 2Linked to original sources
PubMed1981

A new and simplified method for concealing the hypertrophied clitoris.

Current surgical procedures that are utilized in the management of patients with an enlarged clitoris are both complex and challenging. We report a new method of concealing the hypertrophied clitoris between the labia majora instead of resorting to the more difficult clitoral amputation or recession. This concealment of the clitoris is simple, may be done on an outpatient basis, and accomplishes the goal of creating normal-appearing female external genitalia.

Clitoris↗
PubMed2002

A hair tourniquet resulting in strangulation and amputation of the clitoris.

BACKGROUND: Hair tourniquet syndrome involves fibers of hair or thread wrapped around an appendage producing tissue necrosis. Appendages commonly involved include the toe, finger, and penis. We report a hair tourniquet resulting in amputation of the clitoris. CASE: An adolescent presented with a 4-year history of intermittent genital pain that increased in severity over the preceding 5 days. Physical examination revealed a necrotic clitoris surrounded by a black hair. During the examination, the tissue fell off resulting in immediate improvement in the patient's pain. CONCLUSION: We report a case of a clitoral hair tourniquet syndrome leading to autoamputation of the clitoris. A high index of suspicion for this condition is important because of the potential consequences of delayed treatment.

Adolescent↗
PubMed1980

A method of preserving the glans penis as a clitoris in sex conversion operations in male transsexuals.

At sex conversion operations on male transsexuals the glans penis is usually resected or used as a "portio" in the constructed artificial vagina. The glans penis and the clitoris are embryologically corresponding organs and it may be logical to conserve the glans as a clitoris in sex conversion operations. In one young male transsexual the glans penis was used as a substitute for clitoris. The result was good both cosmetically and functionally.

Adult↗
PubMed2006

Solitary vascular malformation of the clitoris.

Isolated involvement of the clitoris by vascular malformation (VM) is very rare. Clinically, the lesion simulates female pseudohermaphroditism. A five-year-old girl presented with clitoromegaly and a clinical diagnosis of solitary VM of the clitoris was made. Magnetic resonance imaging showed characteristic features and confirmed the diagnosis and the extent of the VM. This is the first reported case of isolated involvement of the clitoris by VM to be diagnosed preoperatively.

Arteriovenous Malformations↗
PubMed1994

Rhabdomyosarcoma of the clitoris.

Genitourinary rhabdomyosarcoma in females usually originates in the vagina or uterus, but rarely the vulva. The authors present a case of rhabdomyosarcoma originating in the clitoris. A 4-year-old with an alveolar rhabdomyosarcoma of the clitoris was treated with radical clitorectomy, radiation, and chemotherapy. Follow-up at 3 years showed no active disease.

Child, Preschool↗
PubMed2005

The immunohistochemical profile of the primary and metastatic carcinoma of the clitoris: a case report.

We describe the immunohistochemical profile of rare primary squamous carcinoma of the clitoris metastasizing to the bilateral inguinal lymph nodes. Several antigens were assessed immunohistochemically (pRb1, p16INK4A, cyclin D1, cdk4, estrogen receptor (ER), progesterone receptor (PR), androgen receptor (AR), p53, Ki-67, p27KIP1, PTEN, hMLh1, phospho-AKT, collagen IV, leptin and CD90) in both tumors. All the antibodies applied revealed a staining pattern that is typical of primary and metastatic carcinomas. Cyclin D1-cdk4 complex was overexpressed, whereas there was no p16INK4A immunostaining. Moreover, both tumors expressed positivity for p53 protein, but were negative for estrogen and progesterone receptors. The proliferative activity of cancer, assessed by MIB-1 Proliferative Index, amounted to 25% either for primary or for metastatic tumors. As a conclusion, immunohistochemical assessment of various cell-cycle-associated molecules yield clues as to their possible function during the process of spread of rare neoplasm originating from the clitoris.

Aged↗
PubMed1999

Development of the penis and clitoris in the tammar wallaby, Macropus eugenii.

The development of the phallus from the indifferent stage to sexual dimorphism has not been described in any marsupial. This study describes the morphological and histological changes occurring in the development of the phallus of the tammar wallaby. The development of the penis and clitoris in the tammar closely follow the most widely accepted model for the development of the same organs in eutherian mammals. The urogenital plate that is present in both sexes at birth hollows out to form a urogenital groove at approximately 70 days postpartum (p.p.). There is then greater growth of the phallus in males than in females, which results in sexual dimorphism in length approximately 100 days p.p. In males, the urogenital groove secondarily closes over at this time and fuses in the midline and by 128 days p.p. the penile urethra is fully formed. In females, the groove remains open. The clitoris changes little morphologically from the time of formation of the urogenital groove until adulthood. The pattern of development of the penis in the tammar is similar to that seen in eutherian mammals. There is strong evidence that penis development is androgen-dependent in the tammar, yet unusually it becomes sexually dimorphic at a time when androgen content of the developing testis is low.

Animals↗
PubMed1994

Morphological and electrophysiological analysis of the peripheral and central afferent pathways from the clitoris of the cat.

Afferent neurons projecting to the clitoris of the cat were identified by WGA-HRP tracing in the S1 and S2 dorsal root ganglia. An average of 433 cells were identified on each side of the animal. 85% and 15% of the labeled cells were located in the S1 and S2 dorsal root ganglia, respectively. The average cross sectional area of clitoral afferent neuron profiles was 1,479 +/- 627 micron2. Unilateral transection of the pudendal nerve reduced the number of labeled cells to 1% of that on the control side. Central projections of clitoral afferents were identified in the lumbo-sacral segments (L7-S3) of the spinal cord. HRP labeled fibers were located in the marginal zone on the medial side of dorsal horn and extended into the dorsal half of the dorsal gray commissure. Electrophysiological recordings detected axonal volleys in the pudendal nerve and S1 dorsal root in response to electrical stimulation (threshold, 1-4 V) of the clitoral surface. Estimated axonal conduction velocities at the two sites ranged from 7-27 m/s and 0.6-30 m/s, respectively. Multi-unit recordings from dorsal roots in the lumbo-sacral segments revealed that non-noxious pressure stimulation of the clitoris evoked discharges in the S1 dorsal root. Small increases were also detected in the S2 and L7 roots. Single unit discharges recorded from S1 dorsal roots were activated by electrical stimulation of the clitoral surface at thresholds of 0.6-1.2 V and latencies of 1.5-1.8 ms (estimated conduction velocities of 24-30 m/s.(ABSTRACT TRUNCATED AT 250 WORDS)

Afferent Pathways↗
PubMed1995

Central nervous system neurons identified after injection of pseudorabies virus into the rat clitoris.

Transneuronal tracing techniques were used to identify putative spinal and brain neurons involved in the efferent control of the clitoris. Pseudorabies virus was injected into the rat clitoris and virus-labeled neurons were identified immunohistochemically. Neurons were found primarily in L5-S1 segments of the spinal cord. In addition, virus-labeled cells were found in T12-L4 and S2-S4. In the brain, virus-labeled cells were found in the nucleus paragigantocellularis, raphe pallidus, raphe magnus, Barrington's nucleus, ventrolateral central gray, hypothalamus and medial pre-optic region. These data identify a multisynaptic circuit of neurons which may be involved in clitoral control.

Animals↗
PubMed1990

Immunohistochemical study of neuropeptide Y-containing nerve fibers in the human clitoris and penis.

The occurrence and distribution of neuropeptide Y in the human clitoris and penis was investigated by light immunohistochemistry. Neuropeptide Y-containing nerve fibers were detected in the tunicae of arteries and veins as well as among trabecular smooth muscle. The distribution pattern of the peptide was similar in both organs although a higher density of immunoreactive nerve fibers was detected in the penis. The immunolocalization of neuropeptide Y was also compared with that of neuron-specific enolase, a neuronal marker which labels the entire nerve network. It is suggested that neuropeptide Y is involved in the physiology of the penis and the clitoris, affecting vascular and nonvascular smooth muscle activity.

Adolescent↗
PubMed2001

Effects of estrogen on nitric oxide synthase and histological composition in the rabbit clitoris and vagina.

We investigated the functional and histological changes after oophorectomy in the rabbit clitoris and vagina to determine the mechanism responsible for the development of arousal disorder in postmenopausal women. Twenty mature female New Zealand white rabbits were randomly divided into three groups: control; oophorectomy; and estrogen replacement after oophorectomy. We compared the nitric oxide synthase (NOS) activity and the degree of expression of neuronal (nNOS) and endothelial NOS (eNOS) using biochemical and Western blot analysis in clitoral and vaginal tissues. Histological change of smooth muscle and collagen contents in those tissues were also compared using Masson's trichrome staining. NOS activity and the expression of nNOS and eNOS were significantly increased in the oophorectomized group while there was a decrease to the level of the control group in the estrogen replacement group. Histological examination showed that oophorectomy induced a significant increase in collagen and decrease in muscle content in both clitoris and vagina, while the ratio of smooth muscle content was increased significantly after the estrogen replacement. Our results clearly demonstrate that estrogen deficiency induces compensatory NOS production which may be related to decreases in muscle to collagen ratio in female rabbit genital organs.

Animals↗
PubMed2002

The prevalence of phimosis of the clitoris in women presenting to the sexual dysfunction clinic: lack of correlation to disorders of desire, arousal and orgasm.

Physical examination of the genitalia was performed during an evaluation of women with sexual health problems. Cephalad displacement of the right and left labia minora enables full retraction of the clitoral prepuce and complete exposure of the glans clitoris, under normal circumstances. We defined clitoral examination as abnormal when the cephalad force resulted in varying degrees of incomplete foreskin retraction and limited exposure of the glans clitoris. The pathophysiology is likely to be secondary to recurrent vulvar dermal infections of blunt trauma changing prepucial elasticity. Clitoral phimosis, a previously undiagnosed physical finding, was identified in 22% of the women. Other than its link to sexual pain, the clinical significance of this finding, in particular the relation to diminished sensitivity and impaired orgasmic capability, is unclear at this time.

Adult↗
PubMed1986

Locally aggressive granular cell tumor causing priapism of the crus of the clitoris. A light and ultrastructural study, with observations concerning the pathogenesis of fibrosis of the corpus cavernosum in priapism.

A case of focal priapism of the clitoris caused by a microscopic granular cell tumor (GCT) is described. This neoplasm is considered locally aggressive because it invades the lumens of peripheral cavernous sinuses of the crus of the clitoris. Caverns adjacent to those invaded by tumor exhibit stasis, telangiectasia, and necrosis of the smooth muscle of the trabecular wall. These alterations lead to telescoping collapse and compression of the cavernous spaces and culminate in fibrosis. Ultrastructurally, replicated basal lamina is found surrounding clusters of granular cells. We suspect that the multilayered lamina, in addition to being produced by tumor cells, is derived from the trabecular endothelium surrounding the caverns invaded by the GCT. The replication of the basal lamina may be provoked by cycles of injury and repair to these vessels caused by repeated episodes of prolonged vascular stasis. A peculiar large vein with perforating branches was observed in the center of the cavernous spaces of the crus. This vein is not found in normal crura and, therefore, represents a morphologic adaptation created to drain the cavernous spaces.

Adult↗
PubMed1995

Carcinoma of the clitoris: a histologic study with cytokeratin profile.

A carcinoma of the clitoris showed a variety of histologic features not usually encountered in squamous cell carcinoma of the vulva. In addition to poorly differentiated nonkeratinizing squamous cell carcinoma, there were large areas showing a transitional cell carcinoma pattern, as well as foci of spindle and anaplastic cells. The clitoral neoplasm also differed in its cytokeratin (CK) profile from that described in invasive squamous cell carcinoma of the vulva, especially with regard to the widespread staining for CK 18 and 19 in the former. Thus, our study suggests that some carcinomas of the clitoris differ from those of ordinary squamous cell carcinomas of the vulva. More cases should be studied using immunohistochemical methods in order to establish the full histopathologic and CK range of the former.

Aged↗
PubMed1979

Post-circumcision epidermoid inclusion cysts of the clitoris.

We describe our experiences during the last 5 years with 19 cases of epidermoid inclusion cysts of the clitoris resulting from circumcision. There were 14 children and 5 adults. The management consisted of complete excision of the cyst, and reconstruction of the clitoris, wherever possible.

Adolescent↗
PubMed1992

Angiokeratoma of the clitoris: a subtype of angiokeratoma vulvae.

A 24-year-old married woman had an angiokeratoma of the vulva measuring 3 x 3 x 4 mm localized at the clitoris. The nodule was noticed when she was pregnant with her first child. This tumor grew with occasional tenderness and bleeding during pregnancy, but its size did not change after delivery. The growth of this tumor might be attributable to an increase in venous pressure or serum progesterone levels; therefore this disorder might be classified as a subtype of angiokeratoma of the vulva. This is the first case of angiokeratoma localized at the clitoris.

Adult↗
PubMed1977

Postnatal development of vagina, clitoris and urethral glands of the golden hamster.

We have made a histological study of the postnatal development of the clitoris, preputial glands, urethral glands and vagina of the golden hamster. The 'phallic groove' of the clitoris is closed at 10 days of life, then the urethra has a cuboidal stratified, a stratified squamous and a stratified keratinized epithelium. The preputial glands are composed of branched saccular glands. These glands develop, with few changes during their maturation period. Formation of the urethral glands begins at 5 days and the alveoli are fully developed at puberty. The hamster vagina has two origins; the upper part is Müllerian, the caudal part is sinusal. The wall of the Müllerian vagina has a cylindrical epithelium at birth, which becomes 'double epithelium' at puberty and thereafter changes cyclically in connection with the estrous cycle. The sinusal vagina is solid at birth, its lumen being formed in the first 10 days of life and its wall having a cuboidal stratified epithelium. At 15 days it becomes a stratified keratinized epithelium, which will later line the vaginal pouch. At the 5th day, an ectodermic invagination (stratified keratinized epithelium) is observed in the zone of the future introitus. At the time of vaginal opening this zone forms the distal segment.

Age Factors↗
PubMed2003

Variation in ovarian morphology in four species of New World moles with a peniform clitoris.

Female moles of the Old World genus Talpa display a curious suite of reproductive features that include a peniform clitoris and ovaries with a discrete interstitial gland or testis-like region (so-called 'ovotestes'). The masculinization of the female external genitalia in Talpa has accordingly been linked with secretion of androgens from the interstitial gland region of the fetal gonad. Although their ovarian morphology has received less attention, some species of New World moles also have ovaries with a pronounced interstitial gland (for example star-nosed mole, Condylura cristata), whereas females of other species do not (for example eastern mole, Scalopus aquaticus). Although it is difficult to determine the sex of both Old and New World moles, published accounts describing the external genitalia of female moles are available only for Talpa. The hypothesis that masculinization of the female external genitalia in moles is associated with the presence of an ovarian interstitial gland (OIG) was tested in the present study by using a comparative approach to determine whether these features are ever found in isolation of one another. Three genera of North American moles (Scapanus, Condylura and Neurotrichus) were studied and a peniform clitoris was found in all three species, but OIG were found in only two of three genera. The ovaries of S. latimanus and S. orarius were unremarkable, with no evidence of a discrete interstitial gland or testis-like region. Mapping these results onto recent talpid phylogenies indicates that loss of the bipolar ovarian morphology is a derived trait in Scapanus, and conclusively demonstrates that masculinization of the external genitalia in female moles can develop in the presence or absence of 'ovotestes'.

Animals↗