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Introduction:The most common cancers in the UK are keratinocyte cancers (KCs): the combined term for basal cell carcinomas (BCCs) and cutaneous squamous cell carcinomas (cSCCs). Registration of KC is challenging due to high numbers and multiplicity of tumours per person. Methods: We provide an updated report on the descriptive epidemiology of trends in KC incidence for the resident populations of UK countries (England, Northern Ireland, Scotland and Wales) using population-based cancer registry and pathology report data, 2013-18. Results: Substantial increases in cSCC incidence in England, Scotland and Northern Ireland can be detected for the period of 2013-18, and the incidence of cSCC also increased in Wales from 2016 to 2018. In contrast, however, the pattern of annual change in the incidence of BCC across the nations differs. In England, the incidence of BCC declined slightly from 2016 to 2018, however, the overall trend across 2013-18 is not statistically significant. In Scotland, the incidence of BCC shows some variability,This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Teratomas can be found in different organs of the body and may involve gonads, saccrococcygeal region, mediastinum and other sites. Intrathoracic teratomas always occur in mediastinum and less often arise within the lung. As teratomas mostly involve sex organs (gonads), they rarely occur as extra-gonadal tumors accounting for only 3% of all the cases and very small percentage of such tumors occur in mediastinum.We reported an interesting case of middle aged male who presented to us with symptoms of cough, hemoptysis and trichoptysis (hair expectoration).We found that patient had intrapulmonary teratoma that was initially being treated as case of pulmonary tuberculosis. He underwent surgical resection of his cavitatory lesion and diagnosis of intrapulmonary teratoma was confirmed by histopathology as well. The patient made remarkable recovery with complete disappearance of his symptoms. From Pakistan no such case has ever been reported. Although it is very unusual but in patient with cavitatory lesion, intrapulmonary teratoma should always be kept in mind as differential diagnosis.

Hill CL, Zhang Y, Sigurgeirsson B et al. Frequency of specific cancer types in dermatomyositis and polymyositis: a population-based study. Lancet 2001; 357:96-100. 2 Trallero-Araguas E, Rodrigo-Pendas JA, Selva-O'Callaghan A et al. Usefulness of anti-p155 autoantibody for diagnosing cancer-associated dermatomyositis: a systematic review and meta-analysis.

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Background Hodgkin lymphoma is a systemic disease that commonly involves the cervical, supraclavicular, and mediastinal lymph nodes. The involvement of central nervous system in Hodgkin lymphoma is extremely rare, and diagnosis is usually established using distinct morphological and immunohistochemical staining on the tissue biopsied. Extranodal presentation of HL is a rare occurrence. It has been evident that prognosis is encouraging in patients with disease that is limited to just central nervous system initially or as relapse, compared with involvement of multiple sites of relapse. Case presentation We herein report a case of a 35-year-old South-East Asian male with relapsed Hodgkin lymphoma. The patient developed a parotid gland lesion, cervical lymphadenopathy with significant weight loss, and intermittent night sweats. Along with spread to the central nervous system, there was a high suspicion of tuberculosis. Upon biopsy of his cervical lymph node, the patient was confirmed to have Hodgkin lymphoma. Immediate treatment began with six cycles of chemotherapy consisting of adriamycin, bleomycin, vinblastine, and dacarbazine. The patient received three cycles of chemotherapy consisting of ifosfamide, carboplatin, and etoposide but then was lost to follow-up. Five years later, the patient suffered a road traffic accident. Upon work-up, a right parietal space-occupying lesion with moderate cerebral edema and midline shift was found on computed tomography of the brain. The patient underwent resection of the space-occupying lesion of brain, with features consistent with classical Hodgkin lymphoma on histopathology examination. It is crucial for such lesions to be investigated meticulously to rule out any secondary disease process. Conclusion Relapsed Hodgkin lymphoma with central nervous system involvement is relatively rare with just over two dozen cases reported to date and is observed infrequently in developing nations. Therefore, space-occupying lesion should always be investigated, and biopsy of such lesions is gold standard to establish diagnosis. With timely appropriate therapy, complete remission can be achieved. However, large-scale studies would be prudent to explore the presentation, survival, and treatment options for patients with Hodgkin lymphoma involving the central nervous system.

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This editorial has been jointly published with permission in the BJD, CED and SHD. Any of the citations can be used when citing this article.