Context:Clear cell Hidradenocarcinoma is a rare carcinoma arising from sweat glands. It is an aggressive tumor that most metastasizes to regional lymph nodes and distant viscera; surgery with safe margins is the mainstay of treatment.Case Report:We report a case of 68-year-old woman who presented with an invasive clear cell hidradenocarcinoma situated in the left parotid area which recurred 5 months after surgery, this recurrence was managed successfully by high-dose irradiation of the tumor bed (66 Gy) and regional lymphatic chains (50 Gy), after a follow-up of more than 15 months, the patient is in good local control without significant toxicity.Conclusion:Post operative radiotherapy allows better local control and should be mandatory when histological features predictive of recurrence are present: positive margins, histology poorly differentiated, perineural invasion, vascular and lymphatic invasion, lymph node involvement, and extracapsular spread.

Context:Lung tumors are very heterogeneous histological entities. Pulmonary sarcomatoid carcinoma is a subset of tumors characterized by specific histological features. Their poor prognosis compared to other lung tumors is due to limited responses to different types of chemotherapy.Case Report:We report two patients with sarcomatoid tumors: A 53-year-old woman and a 46-year-old man who presented respiratory symptoms: Dyspnea, cough, associated with a deterioration of general condition.Conclusion:Pulmonary sarcomatoid carcinomas remained an unexplored entity, despite their poor prognosis. Based on these cases, we will discuss the histological and immunohistochemical features of these tumors, as well as report their responses to different chemotherapy regimens used in the course of treatment.

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IntroductionTransitional cell carcinoma (TCC) of the ovary is a rare, recently recognized, subtype of ovarian surface epithelial cancer.Case presentationA 69-year-old postmenopausal woman presented with a 2-year history of progressive enlargement of an abdominal mass. Abdominal computed tomography showed a pelvic mass. CA-125 was normal. A staging operation with total abdominal hysterectomy, bilateral salpingo-oophorectomy, infracolic omentectomy and pelvic lymph node dissection was performed. After surgery, the pathologic report of the right ovarian tumour was TCC, grade 3, stage IC. The patient underwent 3 cycles of chemotherapy: carboplatin and paclitaxel. She is regularly followed up and has been disease free for 10 monthsConclusionTransitional cell carcinoma (TCC) of the ovary is a rare subtype of epithelial ovarian cancer. Surgical resection is the primary therapeutic approach, and patient outcomes after chemotherapy are better than for other types of ovarian cancers.