Embryonal rhabdomyosarcoma is one of the major defined histologic variants of rhabdomyosarcoma that is mainly reported in children. The histologic appearance of this neoplastic entity recapitulates normal myogenesis. The tumor cells variably exhibit the different cellular phases of myogenesis ranging from undifferentiated mesenchymal cells to elongated myoblasts, multinucleated myotubes and differentiated muscle fibers. The carefully orchestrated embryonic signaling pathways that are involved in myogenesis, conceivably also result in the genesis of rhabdomyosarcoma; albeit as a corollary to an imbalance. We have attempted to review the pathogenesis of embryonal rhabdomyosarcoma in an endeavor to understand better, how closely it is linked to normal myogenesis in terms of its molecular dynamics and histologic presentation.

Adult rhabdomyosarcomas in the head and neck are extremely rare and carry a poor prognosis. They should be considered as a distinct clinical entity. The authors report a case of embryonal rhabdomyosarcoma in an adult nasopharynx treated with a combined modality treatment of chemotherapy and radiotherapy as per the European International Society of Paediatric Oncology (SIOP) MMT 89 study, group D. The patient responded to treatment and 10 years later, he is still alive with no signs of metastatic disease.

A rhabdomyosarcoma of the head and neck region is a rare childhood neoplasm often presenting with vague symptoms that can easily mimic other diseases. We present an unusual case of an alveolar rhabdomyosarcoma of the soft palate in a three-year-old child, that presented as a peritonsillar abscess.

Alveolar rhabdomyosarcoma of the parotid gland is a rare condition. The treatment should involve an aggressive multi-modality approach incorporating surgical removal of the tumour, radiotherapy, and multi-agent chemotherapy. The presentation of this condition along with the most appropriate line of treatment is discussed.

Laryngeal rhabdomyosarcoma is a rare disease. Only nine of these tumours have been adequately described in world literature in the adult population. Adult patients with laryngeal rhabdomyosarcoma often present at a later stage than other laryngeal tumours, including squamous cell carcinoma. Diagnosis is made by identification of cross-striations histochemically or cytoplasmic myoglobin by immunohistological methods. We present a 66-year-old woman with pleomorphic rhabdomyosarcoma of her larynx. This is the first female in the adult age group to be presented. Surgical treatment with adjuvant radiotherapy is currently the treatment of choice for this disease. We provide a review of the literature on laryngeal rhabdomyosarcoma, including presentation, pathology and management of this rare disease.

Sudden unilateral visual loss in children is usually caused by a complication of acute purulent sinusitis. Differential diagnosis must include malignant tumours of the orbit or the paranasal sinuses involving the optic nerve. Rapid and adequate diagnostic measures are required in this emergency situation. In comparison, acute or progressive bilateral blindness is a very rare disorder.

We report two cases of bilateral visual loss caused by malignant tumours and diagnostic and therapeutic strategies are described. Our reports show that these life-threatening disorders and their severe complications can be managed successfully if well-coordinated interdisciplinary cooperation is conducted from the beginning. If surgery is performed in this vulnerable region, it may be facilitated by computer-aided modelling techniques. During the last decade the prognosis for rhabdomyosarcoma and malignant lymphoma, the most frequent mesenchymal tumours of childhood, has improved dramatically. Thus, any loss of time causing a delay in correct diagnosis and the onset of adequate therapy must be avoided. Intensive cooperation with paediatric oncologists has to be enlisted from the beginning to avoid unnecessary, repetitive, invasive, or imaging diagnostics and to accelerate the onset of specific therapy.