Adult laryngeal Embryonal Rhabdomyosarcoma: a case report and literature review

Laryngeal Embryonal Rhabdomyosarcoma: A rare adult neoplasm

The embryonal subtype of rhabdomyosarcoma is the most frequent, commonly seen in children. However, it is uncommon to discover this subtype in adults, especially in the larynx. We presented a rare case of a 63 years old man who presented with worsening hoarseness, dysphagia for solids, and dyspnea and was later diagnosed with embryonal rhabdomyosarcoma of the larynx.

[Clinical analysis of 5 adult laryngeal rhabdomyosarcoma]

Objective:To explore the clinical manifestations,the type of pathology, treatment and prognosis of laryngeal rhabdomyosarcoma, and to enhance the understanding of the clinical characteristics of the disease, while improving the diagnosis rateand reducing the misdiagnosis rate, in order to explore effective diagnosis and treatment methods. Methods:A retrospective analysis was conducted on the clinical data of 5 cases of laryngeal rhabdomyosarcoma treated in the First Affiliated Hospital of Zhengzhou University from May 2015 to May 2021. Results:All 5 cases of laryngeal rhabdomyosarcoma were misdiagnosed in the early stage. with tumors mostly occurring in the vocal cords and appearing as smooth mass. The clinical symptoms were mostly hoarseness. According to pathological classification, three cases were embryonic type, one case was polymorphic type, and one case was spindle type.Three patients died due to tumor recurrence, one patient had multiple systemic metastases, and another patient who underwent surgical resection in the early stage and supplemented with postoperative radiotherapy and chemotherapyhas been followed up to date without recurrence. Conclusion:Laryngeal rhabdomyosarcoma has low incidence rate, high malignancy degree and poor prognosis. It is easy to be misdiagnosed as a benign mass. Extensive surgical resection combined with radiotherapy and chemotherapy should be performed as soon as possible after diagnosis.

Adult Laryngeal Pleomorphic Rhabdomyosarcoma: A Rare Entity

Rhabdomyosarcoma (RMS) is a rare and aggressive cancerous tumor that arises from embryonal mesenchymal cells with skeletal muscle differentiation, and it is exceedingly rare that occurs specifically in the larynx. To date, only 22 instances of laryngeal pleomorphic RMSs have been documented in adults. Consequently, there is limited information available to assist healthcare professionals in effectively handling RMS in the larynx of adult patients. Here, we present an uncommon occurrence involving a 45-year-old man who experienced progressive hoarseness and received a diagnosis of pleomorphic RMS affecting the larynx. Pleomorphic RMS had been pathologically diagnosed after a vertical hemilaryngectomy. Following the surgical intervention, the patient underwent chemotherapy and radiation therapy. As of now, there have been no indications of tumor recurrence.

Embryonal Rhabdomyosarcoma: The Diagnostic Dilemma of a Rare Laryngeal Malignancy

The larynx and the remaining components of the upper aerodigestive tract collectively play an important role in undertaking respiration, phonation, and deglutition. Therefore, a variety of pathologies can present with similar symptoms. Systemic diseases, such as rheumatoid arthritis and relapsing polychondritis, may also manifest with laryngeal symptoms and findings, whereas rare pathologies may present with vague presentations. Such scenarios may be attributed to the consequent medical confusion and dilemma in reaching an accurate diagnosis. In this case report, an 11-year-old male presented with airway compromise symptoms, which were later identified and diagnosed as laryngeal embryonal rhabdomyosarcoma.

Cytologic diagnosis of metastatic embryonal rhabdomyosarcoma in cerebrospinal fluid: A case report

Rhabdomyosarcoma (RMS) originates from a differentiation block in muscle progenitors. Leptomeningeal metastasis is a rare but devastating complication of RMS which can be caused by dissemination of cancer cells in cerebrospinal fluid (CSF). Here, we present a 4-year-old female with RMS originating from the upper nasal wall. The following histologic and immunohistochemistry analyses combined with molecular testing analysis supported the diagnosis of embryonal rhabdomyosarcoma (ERMS). Results from CSF routine test, magnetic resonance imaging scans and CSF cytology indicated metastatic meningitis, thus confirming the diagnosis of metastatic ERMS in CSF. This is the first report to describe the clinical features of ERMS in CSF.