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The pulmonary sarcomatoid carcinoma (PSC) is extremely rarely lung neoplasm. A woman at the age of 55 with a local advanced pulmonary sarcomatoid carcinoma of the right lung and CT data on bilateral adrenal metastases and three brain metastases were established. Diagnosis is placed after bronchoscopy with biopsy and detailed pathochistological and immunohistochemical analysis. PSC is extremely malignant and with high risk of distant haematogenic metastases. This rare clinical case support the need for strict pathohistological and immunohistochemical analysis, a difficult pathohistological differential diagnosis with other primary malignant lung tumors and the assessment of complex treatment. In order to improve the healing results and survival of patients, timely diagnosis is required at early stage with surgical treatment and subsequent adjuvant chemotherapy and targetеd therapy after genetic analysis of surgery or biopsy tissue material.

Colonic MALT lymphoma is a rare disease. Due to rare diagnosis, randomized studies are missing to determine the optimal therapeutic approach. We present a 77-year-old patient with Mucosa-Associated Lymphoid Tissue (MALT) lymphoma of the colon, which is diagnosed after colonoscopy with biopsy and precise pathohistological and immunohistochemical analysis. Treatment includes surgery /hemicolonectomy, followed by 6 cycles of chemotherapy- R-COPP regimen. Two years after diagnosis, the patient is in good condition with normal quality of life without recurrence and distant spread of the disease. Through this article, our goal is to support medical literature with another clinical case that demonstrate the need for thorough and precise diagnosis by immunohistichemic analysis and an assessment of optimal complex treatment. Keywords: MALT lymphoma; non-Hodgkin's lymphoma; pathohistological analysis; immunohistochemical analysis; chemotherapy; Complex treatment.

operation, including extirpation of the rectum a modo Miles with simultaneous partial resection of the stomach was performed.From the examinations: Rectocolonoscopy: Approx. 4 cm from the anorectal line, a tumor process on the posterior wall, ulcerated and easily bleeding to the touch was found. A biopsy for histological verification was taken.CT of the thorax and abdomen: Lung, mediastinum, liver, gallbladder, pancreas, spleen, adrenal glands, kidneys -without pathology observations; There are no pathologically enlarged paraaortic, pelvic and inguinal lymph nodes. Small pelvis:Rectum -Near the sphincter along the lateromedial contour on the left, there is a reinforcing intraluminal formation. Free perirectal adipose tissue, no visible changes.Stomach-In the middle third, along the greater curvature, there is an intramural lesion measuring 35/24 mm, with calcification on

Uterine carcinosarcoma (UCS) is a rare aggressive neoplasm.We present a clinical case with UCS, developed during along-term five years adjuvant tamoxifen treatment and ovarian suppression with LHRH agonist on the occasion of invasive ductal breast carcinoma. Crucial for obtaining diagnosis of this rare aggressive neoplasm is the strict pathohistological and immunohistochemical analysis, carried out by an experienced pathologist. Every patient with a history of breast carcinoma is a subject for periodic monitoring. Genital bleeding is required to perform a separated endometrial abrasion with a precise histological study. For UCS / III C2 FIGO stage without distant metastases is necessary to conduct a maximal surgical tumor reduction, involving ever total abdominal hysterectomy, bilateral salpingo-oophorectomy, pelvic and para-aortic lymphadenectomy, peritoneal cytology, and omentectomy, followed by a combined simultaneous chemo-radiotherapy of tumor bed and pelvic lymph nodes, definitive radiotherapy of para-aortical lymph nodes, as well as adjuvant chemotherapy.