Process of neovascularisation compared with pain intensity in tendinopathy of the long head of the biceps brachii tendon associated with concomitant shoulder disorders, after arthroscopic treatment. Microscopic evaluation supported by immunohistochemical.

BACKGROUND: Tendinopathy of the long head of the biceps brachii tendon (LHBT) is one of the most common, painful conditions of the anterior part of the shoulder and often coexists with rotator cuff tears. Multifactorial aetiopathology of tendi-nopathy is poorly understood; however, several studies indicated that it is seen predominantly in areas with decreased vascularity of the tissue; the pathology is also characterised by expansive and abundant neovascular in-growth. The aim of the study was to investigate the relationship between the neovascularisation of proximal part of the LHBT and pain along the bicipital groove. MATERIALS AND METHODS: Tissue material was obtained from 28 patients who underwent a shoulder arthroscopy and experienced pain along the bicipital groove measured using Visual-Analog Scale (VAS) score. CD31 and CD34 molecules were visualised by immunohistochemical method to assess biceps tendon neovascula-risation and quantify it based on a Bonar scoring system. RESULTS: Although all patients reported pain prior to arthroscopy (mean VAS score was 7.5), microscopic examination did not reveal neovascularisation in all cases. Immunohistochemical staining for CD31 and CD34 allowed for very precise visualisation and quantification of neovascularisation; however there was also no correlation between vessels in-growth scores and pain. CONCLUSIONS: The obtained data suggest that neovascularisation process in tendino-pathy is not directly related to pain; however, further studies are needed to explain its significance in the LHBT tendinopathy. (Folia Morphol 2018; 77, 2: 378-385).

[Malignant fibrohistiocytoma of the larynx]. / Miesak wlóknisto-histiocytarny krtani.

INTRODUCTION: Malignant fibrohistiocytoma is one of the rare neoplasms of the larynx. It has nonepithelial origin. The most common sites of the neoplasm are: limbs, trunk and retroperitoneal space. Other localizations within head and neck are very rare. There are 5 histologic types. The most common is pleomorphic type. It is built of histiocytes, fibroblasts and multinuclear giant cells. An examination of the neoplasms consists of microscopic and immunohistologic examination with identification specific tissue markers and intermediate filaments of proteins. Treatment methods of the neoplasms are radical surgery, radiotherapy, chemiotherapy and associate methods of therapy. Prognosis is very bad. MATERIAL AND METHODS: [corrected] We present 71 years old man with croak for four mounths. The tumor of the larynx was examined in laryngoscopy. Biopsy of the tumor confirmed malignant fibrohistiocytoma. Laser surgery (chordectomy) was used to treatment this tumor without radiotherapy. RESULTS: One year observation of the patient didn't show recurrence of neoplasm, but he had only croak. CONCLUSIONS: Malignant fibrohistiocytoma of the larynx doesn't differ from other malignant neoplasms of the larynx. Malignant fibrohistiocytoma of the larynx is very rare malignant neoplasms of the larynx.

[Osteosarcoma of the sphenoid bone -- the cause of hemorrhage from the cavernous sinus]. / Osteosarcoma kosci klinowej jako przyczyna krwotoku z zatoki jamistej.

A very rare of the osteosarcoma osteolythicum teleangiectaticum of the paranasal sinuses, treated surgically, is reported. The infiltration and destruction of the sphenoid bone caused a haemorrhage from the cavernous sinus. The difficulties in the preoperative evaluation of the extent of the osteosarcoma in the craniofacial bone structures are discussed.