Prevalence of the EGFR T790M and other resistance mutations in the Australian population and histopathological correlation in a small subset of cases.

We sought to review the prevalence of EGFR T790M and other EGFR mutations associated with either proven or probable tyrosine kinase inhibitor (TKI) resistance in the Australasian lung cancer population and to perform histopathological correlation in a subset of cases. Retrospective statistical analysis was performed on a set of targeted lung cancer gene mutation tests (FIND IT gene panel) performed at Sonic Healthcare during 2018 and early 2019. A total of 1833 lung adenocarcinoma tumour samples underwent somatic mutation testing.

Increasing tumor thickness is associated with recurrence and poorer survival in patients with Merkel cell carcinoma.

Background: Merkel cell carcinoma (MCC) is a rare, aggressive cutaneous neuroendocrine tumor usually occurring on sun-exposed skin in elderly patients. Clinical and pathologic factors associated with disease progression and mortality in patients with MCC are poorly defined. Recently, it has been reported that p63 expression in primary MCC is strongly associated with clinical outcome.

Two cases of adenosquamous carcinoma of the cervix with extensive in situ and invasive endometrial extension.

Adenosquamous carcinoma of the cervix is rare. It is defined as having both glandular and squamous cell differentiation, each component malignant and clearly seen on haematoxylin and eosin-stained slides alone. We report two cases of adenosquamous carcinoma of the uterine cervix, both of which showed in situ and invasive components and both of which showed cephalad extension to involve the endometrium with invasive squamous and adenocarcinomatous components.

Retroperitoneal inflammatory liposarcoma in a patient with non-hodgkin lymphoma: a report highlighting diagnostic pitfalls.

Well differentiated liposarcoma (WDLS) is the commonest subtype of liposarcoma. Recognised subtypes of WDLSs are lipoma-like, sclerosing, spindle cell and inflammatory. The inflammatory variant of WDLS also known as "lymphocyte-rich liposarcoma" is rare.

Papillary cystadenoma of a minor salivary gland: report of a case involving cytological analysis and review of the literature.

A 91-year-old man presented with an asymptomatic swelling in the roof of his mouth. Clinically the lesion was nontender and appeared cystic. A CT scan showed a soft tissue swelling of his palate with no bony involvement.

Hypothermia fatalities in a temperate climate: Sydney, Australia.

Aims: Fatal hypothermia is well known to occur in cold climates, with previous case series reflecting this. However, hypothermia can also occur in temperate climates. This case series describes the features and circumstances surrounding hypothermia-related deaths in Sydney, Australia.

Recurrent spontaneous coronary artery dissection: A case report and review of the literature.

Spontaneous coronary artery dissection is a rare cause of acute coronary syndrome. Recurrent spontaneous dissection is even more rare. A case of recurrent coronary artery dissection is reported and the literature is reviewed.

Squamous cell carcinoma arising in an area of long-standing necrobiosis lipoidica.

Background: Squamous cell carcinoma in an area of chronic ulceration is a well-documented phenomenon. However, its occurrence arising de novo in an area of necrobiosis lipoidica is rare.

Method: We report a case in a 53-year-old female who presented with a 2 month history of an erythematous nodule occurring in a plaque of necrobiosis lipoidica on the medical aspect of the right lower leg.

Colloid milium arising on a non-sun-exposed area in an adult.

A 59-year-old woman presented with multiple translucent papules on the inner surface of the tragus of the right ear. Initially they were treated with cryotherapy, with a later biopsy revealing the diagnosis of colloid milium. The histology was unusual for adult colloid milium as the lesion lacked a Grenz zone and evidence of solar elastosis.

Seborrhoeic keratoses with associated lesions: a retrospective analysis of 85 lesions.

Seborrhoeic keratoses are benign epidermal neoplasms that are rarely associated with other skin lesions especially malignancies. In this study, the aim was to assess the incidence of associated lesions occurring either adjacent to or contiguous with a seborrhoeic keratosis. A retrospective case series over a 12-month period was carried out.

Quality of life in psoriasis improves after standardized administration of narrowband UVB phototherapy.

SUMMARY Psoriasis is a chronic fluctuating dermatosis with demonstrable impact on patients' quality of life. Our aim was to investigate if narrowband UVB phototherapy administered to psoriatic patients in a standardized manner leads to an improvement in patients' perceived quality of life. A total of 138 patients with psoriasis were recruited from referrals to the Skin and Cancer Foundation, Australia between January 1998 and September 2002.

Renal cell carcinoma with cutaneous metastases.

An 86-year-old man presented with multiple papules on his face, neck, lips and ears 4 years after a left nephrectomy for renal cell carcinoma. Shave biopsies and excisions of the cutaneous lesions revealed findings consistent with metastatic renal cell carcinoma of clear cell type. The patient continued to present to the clinic over the next 3 years with similar eruptions, and biopsies continued to confirm renal cell carcinoma.