UNASSIGNED: This study aims to provide an overview of the diagnosis, treatment, and follow-up management of vulvar and vaginal leiomyomas through the presentation of two rare cases.
UNASSIGNED: Detailed clinical presentations, surgical procedures, histopathological examinations, and follow-up outcomes of two cases of vulvar and vaginal leiomyomas are described. Relevant literature is also reviewed to contextualize the findings.
UNASSIGNED: Both patients underwent successful surgical excision of the leiomyomas with no perioperative or postoperative complications. Histopathological examinations confirmed the diagnosis of leiomyoma based on characteristic microscopic features and immunohistochemical analyses.
UNASSIGNED: Vulvar and vaginal leiomyomas are rare benign tumors that require careful evaluation for accurate diagnosis and appropriate management. Surgical excision remains the primary treatment modality, and long-term follow-up is essential for monitoring recurrence and ensuring favorable outcomes.

Vulvar leiomyomas are rare benign tumors originating from smooth muscle cells of the vulvar tissue. We present the case of a 44-year-old female patient complaining of a painless vulval mass for 12 years, gradually increasing from 1x1 cm to 5x4 cm. Clinical assessment initially suggested a Bartholin cyst because of its non-tender and non-fluctuant nature. However, surgical intervention revealed an unexpected diagnosis of vulvar leiomyoma, measuring 5x5x4 cm. The patient underwent successful excision and repair under spinal anesthesia. This case underscores the significance of meticulous clinical evaluation and accurate histopathological examination in distinguishing vulvar masses. Accurate diagnosis guides appropriate management, and long-term follow-up prevents complications and recurrence. This report highlights the diagnostic challenges of rare vulvar lesions and the importance of a comprehensive approach to their evaluation and treatment.

Vulvar leiomyomas are extremely rare smooth muscle tumors that are easily mistaken for other lesions, as the differential diagnosis must consider a wide spectrum of benign and malignant lesions. We present the case of a 52-year-old woman with a three-year history of progressive abdominal distension and pain and an enlarging vulvar mass distorting the labia majora and causing gait disturbance. Imaging confirmed an enormous pelvic mass originating in the uterus, compatible with a leiomyoma/sarcoma, and large perineal and vulvar masses with similar characteristics. Histopathology after surgical removal revealed benign abdominal, vulvar, and perineal leiomyomas. This case highlights the rarity and diagnostic challenges of extra-uterine leiomyomas, particularly those in the vulvar region.

OBJECTIVE: To reveal the morphological characteristics of simultaneously diagnosed leiomyoma of the corpus uteri and vulva.
METHODS: The paper describes a case of multiple uterine leiomyomas concurrent with vulvar leiomyoma in a 39-year-old patient with progressive tumor nodule growth over 2 years. Vulvar tumor was biopsied simultaneously with extirpation of the uterus; vulvar leiomyoma was removed six months later. Histological and immunohistochemical studies: such as hematoxylin and eosin staining, the expression of smooth muscle actin, desmin, and progesterone and estrogen receptors, S100, CD10, and determination of Ki-67 proliferation index, were conducted.
RESULTS: The largest (14-cm) multiple tumor nodule in the corpus uteri had the structure of leiomyoma of uncertain malignant potential; the large (8-cm) vulvar tumor was a leiomyoma with hyalinosis. The immunohistochemical profile of uterine and vulvar leiomyoma (smooth muscle actin+, desmin+, progesterone+, estrogen+ receptors, CD117-, and Ki-67) was the same (1-3%). The vulvar leiomyoma was assumed to be a tumor of metastatic origin.
CONCLUSIONS: Vulvar leiomyoma is rare; it can arise from smooth muscle tissue of various anatomical structures of the skin and soft tissues. The pathogenesis of the so-called metastatic leiomyoma is unclear; there are concepts of a metaplastic transformation of subcelomic mesenchyme and multifocal smooth muscle proliferation. The presented case demonstrates the synchronous development of uterine and vulvar leiomyoma.
Цель исследования - выявить морфологические особенности лейомиомы тела матки и лейомиомы вульвы, диагностированные одновременно. Материал и методы. Представлено наблюдение множественной лейомиомы тела матки в сочетании с лейомиомой вульвы у пациентки 39 лет с прогрессивным ростом опухолевых узлов в течение 2 лет. Биопсия опухолевого образования вульвы выполнена одновременно с экстирпацией матки, лейомиома вульвы удалена через полгода. Проведены гистологическое и иммуногистохимическое исследования: окраска гематоксилином и эозином, экспрессия гладкомышечного актина, десмина, рецепторов прогестерона и эстрогена, S100, CD10, а также определение индекса пролиферации Ki-67. Результаты. Наибольший из множественных опухолевых узлов тела матки (14 см) имел строение лейомиомы с неясным злокачественным потенциалом, опухоль вульвы больших размеров (8 см) - лейомиома с гиалинозом. Иммуногистохимический профиль лейомиомы тела матки и вульвы был одинаков: гладкомышечный актин+, десмин+, рецепторы к прогестерону+, эстрогену+, CD117-, Ki-67 1-3%. Предположено метастатическое происхождение лейомиомы вульвы. Заключение. Лейомиома вульвы встречается редко, может развиваться из гладкомышечной ткани различных анатомических структур кожи и мягких тканей. Патогенез так называемой метастатической лейомиомы неясен, существуют концепции метапластической трансформации субцеломической мезенхимы и мультифокальной гладкомышечной пролиферации. Представленное наблюдение демонстрирует синхронное развитие лейомиомы тела матки и вульвы.

The objective of this article is to discuss the pathophysiology, diagnosis, differential diagnosis, and therapy of vulvar leiomyoma. We performed a review of all English-language reports of vulvar leiomyoma published in PubMed from 1978 to 2015 using the following search terms: \"vulval leiomyoma,\" \"vulvar leiomyoma,\" \"vulval smooth muscle tumor,\" and \"external genitalia smooth muscle tumor.\" Vulvar leiomyomas, which are rare benign monoclonal tumors, most commonly occur in the fourth and fifth decades of life. The genetics of vulvar leiomyoma remain undefined. Three principal histological patterns have been identified: spindled, epithelioid, and myxoid. Imaging tests such as ultrasound, endoscopic ultrasound, and magnetic resonance imaging are used in diagnosis. Surgical excision is the only curative treatment for vulvar leiomyomas. Establishment of a full differential diagnosis list and correct final diagnosis before surgery are essential for optimal clinical management. Although recurrence of vulvar leiomyoma is extremely rare, long-term follow-up of all cases is advisable.