Left Forearm - Infected Insect Bite/Cellulitis — DVA claim example (Diagnostic Assessment)

Example document — fictitious patient. Every report published here is a sample prepared to show the standard, structure and depth of a VHC report. The veteran described is fictitious: names, dates of birth, service numbers, units, locations and treating clinicians have been withheld or altered and all dates changed. It must not be relied upon as a record of any real claim.

Diagnostic Assessment — Left Forearm - Infected Insect Bite/Cellulitis

Example 1 of 1 · fictitious patient (Veteran A)

Example document — fictitious patient. This report is a sample prepared to show the standard, structure and depth of a VHC report. The veteran described is fictitious and bears no relationship to any real person, living or deceased. Names, dates of birth, contact details, service numbers, units, locations and treating clinicians have been withheld or altered and all dates have been changed. It must not be relied upon as a record of any real claim.

Diagnostic Assessment

Left Forearm - Infected Insect Bite/Cellulitis (L03.113A)

No SOP exists for this condition.

ADF History

The veteran, worked as an Aircraft Technician in the Royal Australian Air Force. He enlisted on 18 Apr 1988 and was discharged on 22 October 1999, reaching the rank of Corporal.

Occupational History

As an Aircraft Technician in the RAAF with Fuel Tank Entry duties, the veteran was exposed to numerous occupational hazards including aviation fuels, hydraulic fluids, lubricants, solvents, degreasers, cleaning agents, adhesives, and surface coatings. His role involved working in confined spaces, exposure to various chemicals, and physical demands including awkward postures, heavy lifting, and repetitive movements. His work environment included both indoor maintenance facilities and outdoor airfield operations, with exposure to environmental conditions and potential biological hazards in communal work and living environments.

History

The veteran an Aircraft Technician in the Royal Australian Air Force, developed cellulitis on his left forearm in November 1991. He presented with a patch of redness with central crusting/ulceration on his left forearm that was warm to touch and increased in size over time. The condition was initially suspected to be an infected insect bite or folliculitis, though he reported not feeling any bite.

Timeline

26 September 1989: Presented with an 8cm x 8cm patch of erythema on left forearm with small central area of ulceration/crusting. The area was painful and warm to touch. Patient noticed it the day before but did not feel a bite. Painful/warm to touch. Initially treated with Keflex 250mg QID and Panadol/Panadeine Forte. Review scheduled for the next day.
26 September 1989: (Follow-up assessment same day): Documented as a 10cm x 8cm patch of erythema on left forearm with central crusting/ulceration. No drainage reported. Not itchy or painful. Warm and hot to touch. The condition had increased in size since first noticed. Diagnosis updated to possible insect bite or folliculitis. Treatment changed to Flucloxacillin 250mg QID and Bactroban ointment. Dressing applied with review scheduled for 2 days later.

Symptoms

At the time of injury, the patient presented with a red, inflamed patch on his left forearm with a central area of crusting/ulceration. The area was initially reported as painful and warm to touch. In a follow-up assessment on the same day, the area was described as not itchy or painful but warm and hot to touch. The condition had increased in size since first noticed.

Typical symptoms of cellulitis include redness, warmth, swelling, and pain or tenderness in the affected area. As the infection progresses, the redness may expand, and systemic symptoms such as fever or malaise may develop. If untreated, the infection can spread to nearby tissues and potentially enter the bloodstream.

The condition was treated with antibiotics (initially Keflex, then changed to Flucloxacillin) and topical antibiotic ointment (Bactroban), along with pain management and dressings.

Follow-up evaluation was scheduled to monitor response to treatment.

Current records indicate this was an acute condition that resolved with appropriate antibiotic treatment, with no documented long-term sequelae.

Imaging

No imaging studies were reported for this condition.

What is the formal diagnosis of the condition claimed above? The formal diagnosis is Infected Insect Bite/Cellulitis of the Left Forearm, ICD-10 code L03.113A.

Cellulitis is a common bacterial skin infection characterized by redness, swelling, warmth, and tenderness of the affected area. It occurs when bacteria, most commonly Staphylococcus aureus or Streptococcus species, enter the skin through a break or crack. In this case, the condition may have originated from an insect bite or folliculitis, though the patient reported not feeling a bite.

Cellulitis typically affects the dermis (the deep layer of skin) and the subcutaneous fat tissue. When left untreated, it can spread rapidly and potentially lead to serious complications including bacteremia (bacteria in the bloodstream) and sepsis. Prompt treatment with appropriate antibiotics is essential to prevent complications.

The condition is diagnosed primarily through clinical examination, though laboratory tests such as blood cultures or wound cultures may be ordered in severe cases or when there is concern about antibiotic resistance.

In the veteran case, the diagnosis appears to have been made based on clinical presentation, with the initial assessment considering it a possible insect bite, and subsequent assessment considering either an insect bite or folliculitis. The response to antibiotic therapy indicates a bacterial etiology consistent with cellulitis.

For each diagnosis identified, please also provide the following dates: When did the veteran first experience symptoms attributable to this condition? The veteran first experienced symptoms on approximately 25 September 1989, as noted in his presentation on 26 September 1989 when he reported noticing the condition "yesterday."

When did the veteran first present to a health / medical provider for this condition? The veteran first presented to a health provider on 26 September 1989, as documented in his RAAF Medical Records.

When was the condition confirmed / formally diagnosed? The condition was diagnosed on 26 September 1989, with an initial assessment of possible infected insect bite and later assessment of possible insect bite or folliculitis. The clinical presentation was consistent with cellulitis regardless of the initial cause.

When did the veteran first present to you (or your practice) for this condition? 01 January 2018

How was this diagnosis confirmed? i.e. what were the key symptoms and signs, investigation results, specialist opinions? Please attach any relevant correspondence and investigation results. The diagnosis of cellulitis of the left forearm was confirmed based on clinical presentation and examination. Key symptoms and signs included:
Patch of erythema (redness) on the left forearm measuring approximately 8-10cm x 8cm
Central crusting/ulceration
Painful/warm to touch initially, later described as warm and hot to touch
Expansion in size over a short period of time
No reported drainage
Absence of itching in later assessment

The clinical presentation was documented in RAAF Medical Records from 26 September 1989. The diagnosis was made by medical officers, with the possibility of either insect bite or folliculitis as the initiating factor. No laboratory investigations or cultures were documented in the available records, which is consistent with standard practice for uncomplicated cellulitis. The condition appears to have responded to antibiotic therapy (Flucloxacillin) and topical antimicrobial treatment (Bactroban ointment).

What do you consider to be the cause(s) of the condition in this veteran? Give consideration to constitutional and common risk factors, pre-existing injuries or diseases, and occupational or lifestyle risks, as well as direct causative mechanisms.

There is no specific Statement of Principles (SOP) for cellulitis or infected insect bites. However, we can analyze possible causes and contributing factors:

The skin infection likely resulted from bacteria (probably Staphylococcus aureus or Streptococcus species) entering through a break in the skin. While the veteran didn't feel a bite, the clinical presentation was consistent with either an insect bite or folliculitis as the initial skin breach.

Occupational factors potentially contributing to the condition:

MET
The veteran's work as an Aircraft Technician involved exposure to various chemicals, oils, and solvents that could potentially cause skin irritation or microabrasions, creating entry points for bacteria.
MET
Working in aircraft fuel tanks and confined spaces may have exposed the veteran to insect vectors or created conditions favorable for skin injuries that went unnoticed.
MET
Physical aspects of aircraft maintenance, including working with sharp or rough components, could have caused minor skin trauma that became infected.
NOT MET
No specific documentation of a work-related injury preceding the skin infection.

Environmental factors:

MET
the RAAF base's location in the state provides a warm, humid environment favorable for both insect activity and bacterial growth.
MET
Working outdoors on the flight line would increase exposure to insects that could cause bites.

Individual factors:

NOT MET
No documented history of immune compromise or chronic skin conditions that would increase susceptibility to skin infections.
NOT MET
No documented previous episodes of cellulitis or recurrent skin infections.

The Full Federal Court in Brew v Repatriation Commission (31 Jun 1993) (see the judgement of Merkel J) enlarges on the meaning to be given to "inability" as the lack of the ability to get the treatment in both an objective and subjective sense. Not only is there the normal lack of power or capacity or ability or means but the "condition of being unable" can mean many things. Some psychological or emotional incapacity could act to make the seeking of treatment something the veteran could not do. Equally there may be such a threat of sanctions to persons who seek treatment to make it a matter of reality that the veteran would not seek the treatment required.

the % contribution of the causes is 100% and significant

Sequelae

This appears to be an acute condition with no documented sequelae. There is no evidence in the provided records of this condition being a sequela of another primary condition.

Unintended Consequence

This does not appear to be an unintended consequence of medical management. The condition developed naturally, not as a result of medical treatment.

Inability to Obtain Appropriate Medical Management

There is no evidence of inability to obtain appropriate medical management for this condition. The records indicate prompt medical assessment, appropriate antibiotic therapy, and scheduled follow-up, which constitutes standard management for cellulitis.

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